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Pyrenomycetes of British Columbia Barr, Margaret Elizabeth 1952

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FYHEBDMYO-TES OF BRITISH CDICMBIA  by MRGARET ELI2_VBETH BARE fe \ &-£ LO Wiv  A THESIS SUBMITTED IH PARTIAL FUItfllMEflT OF THE REQUIP-SMEKTS FOR THE IlffiGHEE OF MASTER OF ARTS i n the Department of Biology and Botany We aooept t h i s thesis as oonforming to the standard required from oandidates f o r the degree of MASTER OF ARTS*  Members of the Department o f Biology and Botany  THE UNIVERSITY OF BRITISH COLUMBIA September, 1952  >  ABSTRACT  The two hundred and s i x t y three species of Pyrenomycetea l i s t e d from B r i t i s h Columbia are distributed i n ninety f i v e genera as follows: P e r i s p o r i a l e s , t h i r t y one species i n f i f t e e n genera; Dothideales, s i x species i n f i v e genera; Hypoereales, eighteen species i n ten genera; Sphaeriales, two hundred and eight species i n s i x t y five genera*  Forty  one c o l l e c t i o n s are b r i e f l y described as unidentified species o f t h e i r respective genera; more adequate specimens o f these are needed before satisfactory determination  can be made©  One species, Gnomonia p o t e n t i l l a e ,  and one. form, Sphaerulina A l n i A.Lorr.Smith forma minor, are described as new.  ACKNOVJLEDGEMENTS  This study was made p o s s i b l e by a Bursary and two Summer Research Grants from the N a t i o n a l Research C o u n c i l , t o whom I em deeply g r a t e f u l . I wish t o thank Dr© F.Dickson f o r suggesting t h i s study and f o r h i s help i n the numerous d i f f i c u l t i e s encountered©  Dr. T.M.C.Taylor  and Miss Mary Harrington are responsible f o r assistance i n the i d e n t i f i c a t i o n of host p l a n t s and Mr. John Bancroft i n the preparation o f piateao  I am indebted t o Dr. J.W.Groves who k i n d l y l e n t me m a t e r i a l  of B r i t i s h Columbia Pyrencmyeetes from the M y c o l o g i c a l Herbarium a t Ottawa, and t o the o f f i c e r s i n charge o f the P l a n t Pathology Laborat o r i e s at Saanichton, Summerland, and Vancouver, and o f the Forest Pathology Laboratory at Victoria'. To the i n t e r e s t e d f r i e n d s who brought o r sent i n specimens t o be added t o the c o l l e c t i o n I am a l s o grateful©  TABLE OF CONTENTS  Page INTRODUCTION  . . i  General Introduction  . . . i  H i s t o r i c a l Survey  .....ii  NATURAL FEATURES  .1  Geographical Regions  1  Phanerogamic F l o r a . . . . . . . . .  3  AREAS OF SPECIAL C0111_ECTING CmSRHL  ...7  OUTLINE' OF PYRENOMYCETES  ..9  Delimitation o f the Group Keys to Orders and Families  9 •  .....10  C l a s s i f i c a t i o n and Nomenclature  .13  MATERIALS AND METHODS  .15  Sources of Collections  15  Examination of Specimens*....  .....16  LIST OF SPECIES  *.  1?  Perisporiales  17  Hypocreales  36  Dothideales  .47  Sphaeriales*  • • 51  HOST INDEX  175  SUMMARY  224  REFERENCES  228  •INDEX OF GENERA AND SPECIES... PLATES AND EXPiLANATIONS..  *233 ,  .....248  PYRENCMICETES OF BRITISH COLIlffilA  INTRODUCTION  General Introduction When the c o l l e c t i o n and i d e n t i f i c a t i o n of Pyrenomycetes of B r i t i s h Columbia was  f i r s t suggested as a mycological study, the idea  vras t o make a general survey and then to concentrate on one p a r t i c u l a r family.  This plan was followed in part, but several fsmiles proved to  have numerous representatives i n the province.  /Three families, the  Erysiphaceae, Mycosphaerellaceae, and Pl'eosporaceae, are treated i n d e t a i l as they occur.  Representatives of the remaining families, although  not as numerous, are keyed out and listed.^in the, same way.  This survey  i s i n no way suggested as being complete, rather i t i s a preliminary study upon which further intensive work may be based.  ii.  H i s t o r i c a l Survey There has been no previous intensive c o l l e c t i n g o f Pyrenomycetes in the province*  Certain c o l l e c t i o n s made by John Macoun were determined  by Dearness (1916, 1917), and e a r l i e r by E l l i s and Everhart (1887, 1891, 1892, 1898)»  References to those specimens described or mentioned have  been included i n t h i s l i s t . at  The Dominion Laboratories o f Plant Pathology  Summerland, Saanichton and Vancouver, the Dominion Laboratory of  Forest Pathology at v i c t o r i a , and the P r o v i n c i a l Plant Pathologists have contributed records o f plant and forest pathogens.  These records,  published i n the Canadian Plant Disease Surveys from 1920 to the present, have been studies; the prevalence of those fungi i n the province i s reported as obtained from the surveys. the as  Any other references found i n  l i t e r a t u r e are also included, i n order t o make t h i s l i s t as complete possible.  1  NATURAL FEATURES Geographical Regions British Columbia extends from the 49th parallel to the 60th parallel of latitude and from the crest of the Rocky Mountains west to the Pacific Ocean*  The eastern boundary of the province follows the axis of the  Rockies to the 54th parallel and follows longitude 120° from there to the 60th parallel of latitude*  Between 55° and 60° latitude on the west,  the Panhandle of Alaska cuts o f f the province from the ocean*  It i s  roughly 760 by 470 miles, and covers an area of 355,855 square miles* British Columbia i s predominately mountainous.  The Rocky Mountains  on the east form the northern end of the Cordilleran belt, consisting of the upturned edges o f the strata underlying the Great Plains on the east, chiefly alluvial and carboniferous limestone.  They .-range i n height  from an average of 8000 to 10,000 feet; some peaks reach 13,500 feet in the south of the province.  The Rocky Mountain trench extends throughout  the length of the province, with variation i n width from 2 to 15 miles* The Columbia mountains extend from the United States to the Eraser River, latitude 53° 45', with an average width of 80 miles, to form the western rim of the trench*  The Columbia system includes the Purcell and Selkirk  trenches i n the south and the Cariboo Range, the Peace and Stikine Mountains in the north* The central region of the plateaux and mountains, 200 miles wide, i s a much dissected and eroded tableland, with s o i l composed of disintegrated lava and glacial g r i f t *  The topography i s characteristically of two types:  deep-cut U-shaped v a l l e y s 1000 to 2000 feet above sea l e v e l , occupying one-third o f the area, and r o l l i n g upland plateaux, 3500 to 5000 feet in  elevation* The Coast Range, 6000 to 7000 feet high and about 100 miles wide,  forms a b a r r i e r between the I n t e r i o r Plateau and the ocean*  These  mountains are composed of massive c r y s t a l l i n e rocks o f an ancient period© West of the Mainland l i e s the p a r t i a l l y submerged Island Range, which forms an archepelago o f islands, including Queen Charlotte and Vancouver Islands*  The deeply submerged Coastal Trench l i e s between t h i s range  and the Mainland, forming the system o f f i o r d s and s t r a i t s characterizing the B r i t i s h Columbia coast© The climate of B r i t i s h Columbia i s c h i e f l y influenced by the Japan Current, the eleven degrees o f l a t i t u d e thro ugh which the province extends, end the extremes o f a l t i t u d e from sea l e v e l to the highest mountain peak at 13,5000feet*  Waxm moisture-laden a i r currents sweep inland over the  Japan Current, are c h i l l e d i n ascent of the western slope of the mountain ranges and there deposit t h e i r moisture* and dry b e l t s , andmoderates  This produces alternating wet  e_tremes o f temperature*  The Lower Coast Belt i s characterized by m i l d , even temperatures, and p r e c i p i t a t i o n of 60 to 70 inches, o f which one-third occurs during the summer months*  The North Coast Belt averages about 5° lower i n mean  temperature and has a p r e c i p i t a t i o n o f 110 inches, with a part o f the winter p r e c i p i t a t i o n as snow*  The Interior Plateau or Dry Belt shows greater  v a r i a t i o n i n temperature, with means from 14° i n January to 67° i n J u l y , and a l i m i t e d p r e c i p i t a t i o n o f 11 to 13 inches*  The second Wet Belt has  3. r e l a t i v e l y the same temperature range aa the Dry B e l t , hut greater p r e c i p i t a t i o n , from 27 t o 60 inches*  The Second or Columbia Dry B e l t , forming  the western rim o f the Rocky Mountain trench, has a s l i g h t l y lower mean winter temperature but a mean summer temperature s i m i l a r to that o f the Second Wet B e l t ; p r e c i p i t a t i o n varies from 13 to 17 inches*  The Great  Northern Belt i s subject to greater extremes i n temperature; p r e c i p i t a t i o n •axles from 16 to 20 inches, o f which nearly h a l f f a l l s during the growing season*  phanerogamic F l o r a The coastal region o f B r i t i s h Columbia i s covered i n great part by coniferous forests* as:  The types o f the forests may be characterized b r i e f l y  1* Douglas f i r - c e d a r type, prevalent at lower a l t i t u d e s t o 3000  feet, on Vancouver Island and the Mainland, consisting o f Pseudotsuga t a x i f o l i a , Thuja p l i c a t a , Tsuga heterophylla, Abies amabilis, Pinus monticola, and P i c e a sitchensis* 2* Giant cedar-hemlock  type, at a higher altitude and north o f the  coastal type, to 4000 f e e t , consisting o f Thuja p l i c a t a , Tsuga heterophylla, Abies amabilis, P i c e a sitchensis, Chamaecyparis nootkatensis, and Pinus monticola* 3* Western hemlock-Sitka spruce type, on the Queen Charlotte Islands and North Coast, consisting o f Tsuga heterophylla, P i c e a s i t c h e n s i s , Thflja p l i c a t a , Chamaecyparis nootkatensis, and Abies amabilis* 4* Hemlock-white f i r type, at higher a l t i t u d e s and on more exposed s i t e s , c h i e f l y Tsuga heterophylla and Abies amabilis, with some P i c e a s i t c h e n s i s , Thuja p l i c a t a , and Pinus contorts* 5* Sub-alpine type, above the hemlock-white f i r type and below timber l i n e , c o n s i s t i n g o f Tsuga Jdertensiana, Abies l a s i o c a r p a , Pinus  4* contorts, Pleea aitehensis and Tsuga heterophylla.  The underbrush consists  mainly o f Gaultheria shallon, Olopanax h o r r i d a (Echinopanax horridum)» Rubus speetabilia; ferns include Polyatiehum, Adiantum, Dryopteris, P o l y podium, and Pteridium spp. Deciduous trees i n the coastal region include Acer macrophyllum, A* circinatum, Rhamnus Purshlana, Arbutus M e n z i e s i i , Alnus oregona, Onerous Garryana, Populus trlchocarpa, S a l i x spp., Betula spp., Prunus spp* The semi-desert or drybelt regions o f B r i t i s h Columbia are characteri z e d by the s c a r c i t y or absence of t r e e s and predominance of grasses, sagebrush, golden rod, balsam root, and other xerophytic plants*  There  are three main drybelt regions: the Columbia-Kootenay area, the OlainaganSimilkameen area and the Fraser area, including the Thompson Valley*  Within  these regions grow the natural grasslands o f B r i t i s h Columbia* -Spring plants ere numerous and v a r i e d , short-seasoned snow melts and before the s o i l becomes dry*  i n the b r i e f time a f t e r the  They include F r i t i l l a r i a pudica,  Calochortua maerocarpus, Phacelia leucophylla, Balsamorhiza Clematis l i g u e t i e i f o l i a , and Lewisla r e d l v i v a *  sagittate,  The semi-desert  flora  includes Artemisia t r i d e n t a t a , Opuntia polyacantha, B l g e l o v i a dracunculoides. Asclepias speeiosa, Mentzella l a e v i c a u l i s , Luplnus spp., Astragalus spp» Shrubs and trees include Amelanchier f l o r i d a , Acer glabrum, Rhus glabra, Corylus c a l i f o r n i c a , Betula glanduloaa, B* f o n t i n a l i s , S a l i x spp., Populus tremuloides, Prunus demissa. The grasslands are distinguished as: •11* Open grasslands, (a) where sagebrush predominates, species o f Agropyron, K o e l e r i a , Festuea, S t i p a , A r i s t i d a and Poa, a l l tufted perennial deep-rooted forms; (b) where grasses predominate, as w e l l as the abovementioned, Bromus, Elymus and Calamagrostis, with creeping rootstocks;  5o  with these grow Lupinus, Astragalus, Geranium, Plantago, and Juncus spp. 2* Wooded grasslands, (a) Douglas f i r - g r a s s l a n d areas: grasses are much as i n the open grassy regions, with fewer bunch grasses, and with the addition of M e l l c a , Jestuca, and Lathyrus; (b) Jackpine-grassland areas: mainly Calamagrostis, K o e l e r i a , and Stlpa; (c)  cottonwood-grassland,  d i f f e r i n g very l i t t l e , but with the addition o f numerous legumes* Dry b e l t and mountain f o r e s t s are divided into four types: 1* Yellow pine, from 2000-3000 feet on slopes of benches; Pinus ponderosa i s found i n almost pure stands, mixed with Pseudotsuga t a x i f o l i a near i t s upper l i m i t ; Juniperus scopulorum, Ceanothus velutinus, 0* sanguineus, Penstemon; s c o u i e r i i at» numerous; with and above Douglas f i r at the higher l e v e l s axe found Pinus contorts and P i c e a Engelmannio 2* Mixed f o r e s t , i n the Kootenay d i s t r i c t , where L a r i x o c c i d e n t a l i a i s found with Douglas f i r between the yellow pine and the spruce-lodgepole pine types* 3* Montane forest from3000 to 6000 feet, i n whose open park-like slopes herbaceous plants are abundant: Erythronium, A r n i c a , L ilium,; Sedum, Erigeron, Lappula, Delphinium, Polemonium, Penstemon, Brodiaea, C a s t i l l e j a , Aquilegia, Heracleum. .Zygadenus, Claytonia, Spiraea, and numerous others* 4 * S u b a l p i n e forest and meadow; timberllne f o r e s t and mountain meadows consist of stunted Pinus contort a, P* a l b i c a u l i s , Abies ^aslocarpa, with grass species of A g r o s t i s, Phleum, Danthonia, Trisetum, K o e l e r i a , Bestuca, and numerous herbaceous p l a n t s including Valeriana, P a s t i l l e J a, Senecio, Lupinus* The f o r e s t s i n the second wet b e l t resemble those on the coast, with the same t r a n s i t i o n i n types*  The range o f tress passes from almost pure  Thujavpllcata on the river-bottoms to a mixture of Thuja p l i c a t a and Tsuga heterophylla, f i n a l l y changing into Tsuga he t e rophyll a-P ice a EngelmanniThuja p l i c a t a type or the subalpine (Picea BngelmannirPinuB, contorta) type from 4000 to 6000 f e e t . The northern sub-arctic or spruce-pine type i s a continuation o f the great forest area that sweeps across Canada, l y i n g between the tundra and the p l a i n s or pine-hardwood f o r e s t s .  I t consists of Pinus contorta, P i c e a  canadensis, and P. mariana, changing to P. Bngelmanni f a r t h e r south. Alpine regions are found on most B r i t i s h Columbia mountains above 5500 f e e t .  Subalpine association of ericaceous shrubs, such as Rhododendron,  Phyllodoce, Casslope, Cladothamnus, and Jaccinium, as w e l l as Spiraea, Caltha, and T r o l l l u a , extend from 4000 to 6000 f e e t .  Small lakes are  abundant, with t h e i r f l o r a of Kalmia, Gentiana, Parnasaia, Menyanthes. The l a s t trees are Abies l a s i o c a r p a , Pinus a l b i c a u l i s , and Tsuga Mertensiana, with L a r i x L y a l l i i i n a few l o c a l i t i e s .  The a r c t i c - a l p i n e zone i s character-  ized by Silene a c a u l i s , Artemisia norveglea var* p a c i f i c a , P h a c e l i a s e r i c e a , Phlox Douglasii, Bnpetrum nigrum, L o i s e l e u r i a procumbens, Gentiana calycosa, Anemone o c c i d e n t a l l s , Saxifrage Tolmiei.  Rock s l i d e s are clothed by Sedum  divergens, Juniperus,slberica, Lupinus a r c t i c u s , and Polemonium conferturn* Gravelly creek banks and sand bars are covered with Mimulus L e w l s i i , M. alplnus, P e t a s i t e s V f r i g i d u a , Eplloblum l a t i f o l i u m .  Lupinus spp., C a s t i l l s J a  spp.,, Valeriana s i t c h e n s i s , Pedicularla bracteosa, Aquilegia formosa, Vernnica Wormskjoldii, Veratrum v i r i d e , and numerous sedges and rushee abound on alpine slopes*  7,  AREAS OF SPECIAL CC-J-ECTING The size of the province renders impossible any comprehensive survey at present; rather representative areas were covered a* thoroughly as possible*  Certain l o c a l i t i e s have been f a i r l y i n t e n s i v e l y studied, either  because of t h e i r convenience  or because a few days were spent i n the area.  These areas include the campus o f the U n i v e r s i t y of B r i t i s h Columbia, the environs of Vancouver, the v i c i n i t y of Duncan and Saanichton on Vancouver Island, the open parklands of the i n t e r i o r of B r i t i s h Columbia between Pentieton and Salmon Arm,  and an alpine area i n the Ashnola d i s t r i c t , i n  the southern part of the province*  These l o c a l i t i e s w i l l be described i n  somewhat more d e t a i l than the generalized regions of the province* The campus of the U n i v e r s i t y of B r i t i s h Columbia i s s i t u a t e d on Point Grey, a point of land to the west of Vancouver cut o f f by E n g l i s h Bay on the north and the Gulf of Georgia on the west*  The campus i s planted with  a number o f native and introduced t r e e s , shrubs, and herbaceous p l a n t s , Qiany of which were examined i n the search f o r fungi*  Further c o l l e c t i o n s  of fungi were made i n woods and gardens i n the c i t y *  A t r i p to Mount  Seymour, a l t i t u d e 4758 f e e t , i n the d i s t r i c t of New Westminster, y i e l d e d other representatives which approached the alpine type o f fungi*  Beaches  near Vancouver gave a few fungi on casual examination* The areas on Vancouver Island, Duncan and Saanichton, are d r i e r and hotter i n the summer than Vancouver*  Duncan i s s i t u a t e d i n a v a l l e y on the  Cowichan River, f o r t y miles north of V i c t o r i a .  I t i s l a r g e l y a cleared area,  with small farms and some second growth o f trees*  Numerous c o l l e c t i o n s were  made of dead herbaceous stems i n the spring. The Dominion ___perimental Farm near Saanichton on the Saanich Peninsula provided an area f o r c o l l e c t i o n amidst  8, small f r u i t and market gardens*  The observations of Mr. w*  Jones and  Dr. W. Newton i n t h i s l o c a l i t y have r e s u l t e d i n a Check L i s t o f plant parasites, o f which those remarks pertinent to t h i s study have been includede The drybelt region o f the province, with i t s t y p i c a l f l o r a ,  provided  other fungi, e s p e c i a l l y among the Brysiphaceae, which are general i n those areas*  C o l l e c t i o n s were made from the dry clay benches to the west o f the  c i t y of Penticton, where Artemisia, Opuntia, and bunchgrasses were dominant* The parklike area north of Vernon up to Salmon Arm,  with Pinus ponderosa  the prominent feature o f the landscape, provided other specimens*  Around  Lumby and the Shuswap F a l l s , the somewhat wetter l o c a l i t y gave another type of f l o r a and d i f f e r e n t fungi* The area known l o c a l l y as the Cathedral Lakes i n the Ashnola d i s t r i c t , south of Keremeos, was  the most f r u i t f u l i n numbers of Pyrenomycetes c o l l e c t e d *  This l o c a l i t y v a r i e s i n a l t i t u d e from 6500 feet to 8300 feet©  Several  small  a&pine lakes are situated between the ridges, which at the time of exploring, e a r l y i n August, were clothed with b r i l l i a n t alpine flowers*  Moisture  was  abundant on the north and east sides of the ridges, where the snow s t i l l remained i n sheltered patches* vegetation was  To the south and west o f these ridges,  i n a more advanced condition and often dried out*  Collections  of dead stems>and leaves o f the herbaceous plants yielded many fungi, t y p i c a l l y alpine and a r c t i c i n d i s t r i b u t i o n * Mycosphaerella, Pleoapora, and A glance at the map  Most common were species of  Leptosphaeria*  of B r i t i s h Columbia shows that the l o c a l i t i e s men-  tioned are scattered through, the southwestern part* province  The greater part o f the  i s represented by only a few scattered collections©  GEN-SAL OUTLINE'. OF. PYHENOMYCETES Delimitation o f the Group The Pyrenomycetes comprise a large group of Asec_ycetes i n which the asci are borne i n a closed f r u i t i n g body, the perithecium, which opens by a round o r elongated o s t i o l e or l a c k s an o s t i o l e and then ruptures i r r e g ularly*  Mycelium i s septate, hyaline or dark colored*  globose, c o n i c a l , hemispherical o r flattened*  P e r i t h e c i a are  The perithecium may be  s u p e r f i c i a l , with o r without hyphel strands at the base, may be p a r t i a l l y iiamersed or completely immersed i n the substratum and then sometimes p a r t i a l l y or completely erumpent at maturity; or i t may be imbedded i n a stroma composed o f mycelium or a mixture o f m y c e l i a l and host tissues*  In one  order p e r i t h e c i a are lacking; the a s c i arise i n locules i n the stroma which lack a d e f i n i t e l y d i f f e r e n t i a t e d wall*  Paraphyses or pseudoparaphyses,  i n t e r t h e c i a l threads, are usually present between the a s c i , although i n c e r t a i n genera or f a m i l i e s they may be lacking©  Periphyses, h a i r s l i n i n g  the upper wall and o s t i o l e o f the perithecium, are often present*  The  asci: arise from the base o r sides o f the perithecium, and may be globose, ovate, clavate o r c y l i n d r i c a l , stalked o r s e s s i l e , t h i n - or thick-walled, usually eight-spored, or with more o r l e s s spores* shapes, c o l o r s , and sept at ion©  Spores are o f various  The imperfect stages-of many, of these fungi  have been connected with the ascigerous stage; they belong to numerous form genera o f the Fungi Imperfect!©  10.  Keys to Orders and Families For the purpose o f t h i s paper the following key t o the orders and families of Pyrenomycetes i s given.  P e r i t h e c i a e i t h e r globose and without o s t i o l e or hemispherical and opening by an o s t i o l e  ....  .PSRISPOIlIAt-SS  P e r i t h e c i a more or l e s s globose, without o s t i o l e and opening i r r e g u l a r l y , wall e n t i r e . A e r i a l mycelium white, p e r i t h e c i a (cleistothecia) with appendages...  1. Brysiphaceae  A e r i a l mycelium l a c k i n g or dark-colored, p e r i t h e c i a without appendages..........  .......••.••2.  Perisporlaceae  P e r i t h e c i a f l a t or hemispherical, opening by a round pore at . 3 . Mlcrothyriaceae  the apex, wall/often l a c k i n g below.  P e r i t h e c i a globose o r e l l i p s o i d , with d i f f e r e n t i a t e d o s t i o l e . P e r i t h e c i a d e l i c a t e , l i g h t colored or c o l o r l e s s , o c c a s i o n a l l y brownish, never black and hard  .B^OCREALIS  P e r i t h e c i a s u p e r f i c i a l ; stroma present or absent...4. Nectriaceae P e r i t h e c i a p a r t i a l l y to e n t i r e l y iom^ or stramatic base.  a stroma . . . . . . . . . 5 . Hypoereaceae  P e r i t h e c i a e i t h e r l a c k i n g or f i r m and dark colored. F r u i t i n g body without p e r i t h e c i a , formed i n a stroma as ascigerous l o c u l e s . . Here considered as one family  IX)THII_5Uu_ES .6. Dothideaceae  P e r i t h e c i a with d e f i n i t e l y d i f f e r e n t i a t e d , membranaceous, leathery or carbonaceous w a l l s , with or without stroma.•••••• ••<>•. SPBA__3IAI__  P e r i t h e c i a wholly or p a r t l y s u p e r f i c i a l * Subiculum l a c k i n g or arachnoid* P e r i t h e c i a l walls membranaceous* P e r i t h e c i a hairy, e s p e c i a l l y above, a s c i evanescent.......7.  Chaetemiaceae  P e r i t h e c i a naked o r setose, a s c i discharging spores f o r c i b l y . . . 8 * Sordariaceae P e r i t h e c i a l walls coriaceous or carbonaceous* Mouths o f p e r i t h e c i a p a p i l l a t e * P e r i t h e c i a setose or h a i r y . . *  «  ...........9« Trichoaphaeriaeeae P e r i t h e c i a naked*  »*»10* Melanommeae  P e r i t h e c i a with long, o f t e n h a i r l i k e beaks...................ll* Ceratostomataceae Stroma present o r p e r i t h e c i a #ore or l e s s deeply sunken In substratum at bases* Stroma present; at maturity p e r i t h e c i a e i t h e r free o r remaining p a r t i a l l y immersed i n i t * Stroma not l i m i t e d , p e r i t h e c i a mostly free at maturity, globose to c o n i c a l , ostiolate..  .....12© Cucurbitarlaceae  Stroma sharply defined; p e r i t h e c i a  (aeco-  carps) elongated into slender c y l i n d r i c a l columns as lobes from the stroma; true o s t i o l e lacking*.  13* Coryneliaceae  Stroma lacking; bases o f p e r i t h e c i a only p e r s i s t e n t l y Immersed*  12  ©  Mouths o f p e r i t h e c i a circular..............©. ...14o  Amphiaphaeriaceaa  Mouths of p e r i t h e c i a compressed) s l i t l i k e . .............•••••.15. Lophiostomataceae P e r i t h e c i a Immersed i n substratum or stroma, with o s t i o l e s o r necks only projecting, or at maturity becoming nearly s u p e r f i c i a l * P e r i t h e c i a immersed i n substratum; stroma l a c k i n g or poorly developed. Mouths of p e r i t h e c i a mostly p a p i l l a t e or plane; periphyses l a c k i n g . P e r i t h e c i a membranaceous to coriaceous. A s c i f a s c i c u l a t e , without paraphyses...©. ..................16. Mycosphaerellaceae A s c i not usually f a s c i c u l a t e , paraphyses or i n t e r t h e c i a l threads present.• ......17. Pleosporaeeas P e r i t h e c i a coriaceous to carbonaceous; spores l a r g e , mostly with gelatinous coating......©© .............................18. Maasarlaceae P e r i t h e c i a usually beaked; periphyses present* P e r i t h e c i a without clypeus...19. Gnomoniaceae P e r i t h e c i a covered with a s h i e l d - l i k e crust (clypeus)  20. Clypeosphaeriaceae  P e r i t h e c i a t y p i c a l l y immersed i n stroma.  13. Stroma composed of mixed host and fungus elements. Conidia borne in cavities in the Stroma...........  .........21. valsaceae  Conidia borne superficially on surface of stroma.................22. Melanconidaceae Stroma composed wholly of fungus elements. Ascospores small, cylindrical, usually allantoid, hyaline to yellow-brown. (Stroma present only i n the conidlal stage in Calosphaeria).......23. Diatrypaceae Ascospores various but not as above. Conidia typically borne in hollow chambers i n stroma; ascospores oneto many-celled, hyaline or brown........ ....................24.  Melogrammataeeae  Conidia borne in superficial layer on surface of young stroma; ascospores one- (rarely two-) celled, blackish brown  .25. Zylariaceae  Classification and Nomenclature In general the classification of fungi in this l i s t follows that of winter in Habenhorst's Kryptogamen-ELora.  Keys to families are taken  from Lindau's Pyrenomycetineae i n Engler and Prantl's Naturlichen Pflanzenfamilien, with some slight changes. The exceptions to Winter's classification are due to more recent monographic treatment of certain groups. The Erysiphaceae are treated according to Salmon's monograph (1900) of the  14e family.  Seaver's monograph (1909, 1910,  1911)  of the Hypocreales i s  followed; where the names used d i f f e r from the generally accepted names, both are included. Members of the Dothideales and P e r i s p o r i a l e s (with the exception of the Erysiphaeeae) have been l i t t l e c o l l e c t e d so that differences of opinion concerning t h e i r c l a s s i f i c a t i o n are not p a r t i c u l a r l y  important  0  The Coryneliaceae, with one species represented i n t h i s province, are retained i n the Sphaeriales following Lindau's treatment of the group; that p o s i t i o n i s not correct according to the recent studies of F i t z p a t r i c k  (1942). As f a r as possible to avoid confusion due to synonymy, where more than one name i s i n use, a l l are included. i s employed as the legitimate one.  No new  The generally accepted name combinations o f names have  been made, so that i n the genus Mycoaphaerella,both that generic name and Sphaerella are l i s t e d ; the same i s true f o r Guignardia and Laestadia, Pleospora and Pyrenophora. Determinations ature.  i n nearly every case were made from descriptive l i t e r -  Only a few species were available f o r comparison, so that the  majority represent the writer*s idea of the species e n t i r e l y . study w i l l probably r e s u l t i n a l t e r a t i o n o f some of these  Further  determinations*  15,  MATERIALS AND, METHODS Sources of Collections Specimens l i s t e d i n this paper were taken from several sources*  A  few references from literature have been included; where specimens have not been examined* the fact i s noted*  The collections of the Dominion  Laboratories of Plant Pathology at Saanichton and Summerland have been studies*  These collections constitute the majority of the parasitic  Pyrenomycetes, chiefly among the Erysiphaceae*  The herbarium of the  Dominion Laboratory of Forest Pathology at Victoria has yielded parasitic and saprophytic fungi on both coniferous and deciduous trees* Wherever sufficient material was available, duplicates of these collections were placed i n the Mycological Herbarium at the University of British Columbia© Collections have been made by the writer i n l o c a l i t i e s previously described*  Specimens from these areas are deposited i n the University  Mycological Herbarium. In addition many specimens have been examined from the Phanerogamic Herbarium-; at the University, with the kind permission of Dr* T.M.C. Taylor* were removed and examined*  From these specimens dead stalks and leaves  Those bearing Pyrenomycetes are now in the  University Mycological^ Herbarium* From the Mycological; Herbaritia at Ottawa Dr. J.W. Groves contributed collections of British Columbia Pyrenomycetes*  Although not numerous,  these collections are valuable in that they include collections made by John Macoun, with certain type end rare specimens* The collection numbers l i s t e d are preceded by a l e t t e r denoting the Herbarium in which they are to be found* have been used*  The following abbreviations  16o H - Mycological Herbarium of the Department of Biology and Botany, University of British Columbia, Vancouver, B.C. 0 - Mycological Herbarium, Division of Botany and Plant Pathology, Science Service, Department of Agriculture, Ottawa, Ontario*, OM - From the Mycological Herbarium at Ottawa, but collected by John Macoun and either bearing his collection numbers, or unnumbered* S - Herbariuft of the Dominion Laboratory of Plant Pathology, Summerland, B.C. U - FCrest Pathology Herbarium, University of British Columbia, Vancouver, B.C. 7 - Herbarium of the Dominion Laboratory of Forest Pathology, Victoria, B.C.  Examination of Specimens A l l collections were examined with the aid of a low-power microscope* In the case of strcmatic foms freehand sections were out and examined, while single perithecia were removed bodily and flattened between slide and cover glass*  Cameralucida drawings were made of asci and spores, as well  as any other diagnostic feature, for each species* Measurements were taken of peritheeia or locules, of asci and spores.  The sizes are given as the  range of a number of measurements. Each species was described when f i r s t seen, and i n further collections notes were made of any variation from the previous collection or from the published description*  17.  LIST Off SPECIES The Pyrenomycetes found i n B r i t i s h Columbia are l i s t e d i n the families delimited on page 10. A b r i e f characterization o f each family i s giveno Genera and species are l i s t e d i n alphabetical order.  In f a m i l i e s where  more than one genera are noted, a key i s given to the genera.  Again,  genera with several species have been keyed out, i n an e f f o r t to make t h i s study o f p r a c t i c a l use i n the herbarium.  Species mentioned In the  l i t e r a t u r e as c o l l e c t e d i n t h i s province are included under t h e i r genuso Those species c o l l e c t e d Only i n the imperfect stage are also l i s t e d under the name o f the perfect stage and the stage o f the c o l l e c t i o n i s noted.  PBRISPORIALES P e r i t h e c i a e i t h e r l a c k i n g an o s t i o l e and opening i r r e g u l a r l y , or with a conical or plane o s t i o l e , membranaceous, coriaceous o r carbonaceous, usually without stroma, but often seated on strongly developed, permanent mycelium, always s u p e r f i c i a l ; a s c i variously shaped, mostly aparaphysate; spores variously shaped and colored.  1. Erysiphaeeae P e r i t h e c i a globose, membranaceous, without o s t i o l e , brown or black, with v a r i o u s l y shaped appendages; mycelium s u p e r f i c i a l , white or l i g h t brown, sending haustoria into the epidermal c e l l s o f the host; conidia preceding the p e r i t h e c i a , abstricted from conidiophoresbasipetally; a s c i one or several, oblong, ovate or globose, two- to eight-spored; spores oblong or oval or e l l i p t i c a l , hyaline, granular; paraphyses lacking; p a r a s i t i c on l i v i n g plants*  18. P e r i t h e c i a containing  a single - ascus*  P e r i t h e c i a l appendages m y c e l i a l , filiform«.««»»»..,»....».Sphaerotheea P e r i t h e c i a ! appendages several times dichotoinously near the t i p s * • • • •  branched .Podosphaera  P e r i t h e c i a containing more than one ascus* P e r i t h e c i a l appendages simple, not branched, or i f branched, once only and not ornate* Appendages uncinate at apex, simple o r branched**«..«»«.*Uneinula Appendages not uncinate* Appendages s i m i l a r to mycelium, simple o r i r r e g u l a r l y branched*  «Brysiphe  Appendages equatorial, r i g i d , with a bulbous base ••••*•••••..**••  *  *  •  ....»».Phyllact i n i a  P e r i t h e c i a l appendages branched at apex i n a d e f i n i t e manner, often ornate•••  ••...•••••.•••••••••••••••••.•••«.•«• *__crosphaera  Erysiphe Hedw.f* P e r i t h e c i a globose, o r globose-depressed; a s c i several, two- to e i g h t spored; appendages floecose, simple o r i r r e g u l a r l y branched, sometimes obsolete, usually more or l e s s s i m i l a r to the mycelium and interwoven with i t *  P e r i t h e c i a large, 135-280 ;u diameter; spores not developed on l i v i n g plants..•  •• «B* gramlnls  P e r i t h e c i a smaller, up to 175, r a r e l y 230 p. diameter; spores developed on l i v i n g plants* A s c i 2-spored ( r a r e l y 3-spored) A s c i 3- t o 8-spored*  B. cichoracearum  19 On female catkins o f alder; a s c i numerous. 20-42,...«E* aggregata On numerous hosts, but not alder catkins; a s c i few* 2-8, or r a r e l y up to 22  E . aggregata,(Pk.)  ffarl.  ,,E. polygon!  (Plate I, fig.1)  P e r i t h e c i a amphigenous, 130-  230 u diameter; appendages numerous; a s c i numerous, 20-42, 80-115 x 3040 u; spores 8, r a r e l y 7, rounded, 16-20 x 10-15 ja.  On catkins of ALnus  sp., N.Saanich, l e g . W.Jones (H-302).  E . e ichorace arum DC.  (Plate I , f i g . 2)  P e r i t h e c i a amphigenous, 80-140 p.  diameter; appendages v a r i a b l e , brown or hyaline; a s c i 4-25, narrowly to broadly ovate, more or l e s s stalked, 58-90 x 30-50 p.; spores 2, 20-28 x 12-20 ju.  On Aster MacCallae Rydb., Enderby, l e g . G.E.Woolliams (S-30);  A. novae-angliae L.(CPDS 1954)% Aster sp., Summerland, l e g . G.E.Woolliams, (E-1671, H-1569); Calliatephus sp. (CPDS 1933, 1937); Chrysanthemum sp. (CPDS 1930); Cucumis spp. (CPDS 1937, 1940, 1943, 1945); Delphinium sp. (CPDS 1926, 1937); Lactuca s c a r i o l a L., Penticton, l e g . G.E.Woolliams (H-1593), Summerland, l e g . G.E.WofiHiems (H-1603); Oenothera sp. (CPDS 1925); Penstemon sp• (CPDS 1934); Phlox sp., Agassiz, l e g . T.G.Afckinson (H-1879), Powell River, l e g . W.Jones (H-791), Sumas, l e g . W.Jones (H-789), Summerland, l e g . M.E. Welch (H-1599), Yancouver, l e g . B.Lawson (H-83, H-1485); Plantago major L., Agassiz, l e g . W.Jones (H-790), Kelowna, l e g . G.E.Woolliams (H-1571), Shawnigan Lake, l e g . W.Jones (H-303); Rudbeckla l a c i n i a t a L«, (CPDS 1934, 1940); Solanum nigrum L., Kelowna, l e g . G.E.Woolliams  (H-1575),  Summerland, l e g . G.E.Woolliams (H-1602); Solldago sp., Vancouver, l e g . F. Diekson (H-952); Z i n n i a elegans (CPDS 1936).  20o  B* graminis DC, (Plate I , fig.3)  P e r i t h e c i a usually, e p i p h y t o u s , l a r g e ,  135-280 u diameter, more or l e s s immersed i n the lanuginosa p e r s i s t e n t mycelium; a s c i numerous, 9-30, c y l i n d r i c a l to ovate-oblong, stalked, 70-108 _• 25-40 p; spores 8 ( r a r e l y 4 ) , 20-23 _ 10-13 n.  On Agrppyron  repens (L.) Beauv*, N.Saanich, l e g * W.Jones (H-792), Agassiz, (CPDS 1949); Avena,satlva L* (CPDS 1930, 1939); P a c t y l l s glomerataaL*, N.Saanich,  lego  W.Jones (H-3Q5, GPDS 1934, 1935, 1939); Hordeum vulgare L.. Sidney, l e g * W.Jones (H-304| CPDS 1934, 1937, 1939, 1940); Hordeum s p , Cloverdale, 0  l e g . I.CMaeSwan (H-28}; Poa ap., Langley, l e g * W.Jones (H-306); Sec ale cereale L*, Hatzic, l e g * W.Jones (H-793, GPDS 1939); Triticum aestivum L., Vancouver, l e g . I.C.MacSwan (H-1486| GPDS 1928, 1930, 1933, 1935, 1937, 1939, 1940)*  , B* polygon!,DC*  (E* communis Grev*)  (Plate I, fig.4)  P e r i t h e c i a smphi-  genous, 65-180 u diameter, appendages v a r i a b l e ; a s c i 2-8 ( r a r e l y up to 22), ovate to subglobose, stalked or s e s s i l e , 46-72 x 30-45 p.; spores 5£8, 1925 x 9-14^1©  On A q u i l e g i a formosa Pisehc, Brentwood, l e g * W.Jones (H-308),  Summerland, l e g * D.L.Mcintosh (H-956)> l e g . M.F»Welch (H-1591), Invermere, l e g * H.R-McLarty (S-152); Brassies oleraoea L* v a r . a c e p h a l a DC*, Sidney, l e g . W.Jones (H-307); Comandra p a l l i d a DG*> L l l l o o e t , l e g . B.Lawson (H-966); Delphinium sp*, Summerland,leg* G.E.Woolliams (H-1648, S-73); Lathyrus ochroleucus Hook*, T r a n q u i l l e , l e g , V.C.Brink (H-1543); Lotus dentlculatus (Drew) Greene (Hosaekia denticulate Drew) (CPDS 1931); Luplnus polyphyllua L l n d l * , Sidney, l e g . W.3ones (H-309); L* perennis L*« Summerland, l e g * G.E.Woolliams ( S - l ) , Lupinns sp., Crawford Bar, l e g * G.E.Woolliams and J*W* Eastham (H-1679); Matthiola sp* (CPDS 1938); P i sum sativum I*, Duncan (H-1886)  21. L i l l o o e t , l e g . B.Lawson and G.E.Woolliams (H-1693), Rocky Point, Vancouver Island, l e g . W.Jones (H-325), Invermere, l e g . H.R.MeLarty (S-151); Pisum sp., Dewdney, l e g . W.Jones (H-794), U.B.C., l e g . F.Dickson (H-173); Polygonum avieulare L., Kelowna, l e g * G.E.Woolliams (H-1573), Summerland, l e g * Welch (H-1600); P. erectum L.g  M.F.  Salmon Arm (H-1893), P* ramosisslmum Michx. ,  Kamloops, l e g * A.F.Szczawinski (H-1890)A, P. P e r s i c a r l a L* (CPDS 1925); Polygonum sp*, Notch H i l l , l e g * B.Lawson (H-1705); T r i f o l i u m hybridum L*, Stone Creek, l e g * G.E.Woolliams (5-363); T. pratense L»« Agassiz, l e g * W.Jones (H-310), U.B.C., l e g . R.St ace-an i t h (H-1373) *  -Eryslphe sp* :  Not seen, reported i n CPDS on Antirrhinum sp*, Artemisia sp*,  Rhus sp* (Rhubarb)*  Microsphaera Lev* P e r i t h e c i a globose t o globose-depressed; a s c i several, two- to e i g h t spored; appendages several times dichoto-ously branched at the apex*  Tips o f some o r a l l of the ultimate branches o f the appendages i?e curved. Appendages long, f l a c c i d ; apex I r r e g u l a r l y branched.............•••••• ••  *_* a l n i var• v a c c i n l l  Appendages shorter, not f l a c c i d ; a p i c a l branching c l o s e r and regular  •••  *M*  alni  Tips not recurved* Branching of the appendages l a x , i r r e g u l a r , forming a narrow fork...  *  .M. d i f f u s a  Branching c l o s e r and regular, apex widely spreading****.....*..**.**** »M* a l n i var* loalcer&e  22.  M. a l n i (Wallr.) Salm.  (Plate I , fig.5)  P e r i t h e c i a amphigenous, 66-135 u  diameter; appendages hyaline or amber-colored, apex 3-6 times dichotamously branched, t i p s of ultimate branchlets recurved; a s c i 3-8, ovate to ovate globose, 48-70 x 32-50 n, short stalked; spores 4-8, 18-23 x 10-12 u.  On  Qnercua Garryana Dougl., U.B.C, l e g . F.Dickson (H-1799)©  M. a l n i (Wallr.) Salm.f v a r . lonicerae (DC.) Salm. (Plate I , fig.6) D i f f e r i n g from M.. a l n i i n the more loosely branched apex, with the t i p s of the ultimate branches s t r a i g h t .  Salmon (19003 145) states that t h i s  v a r i e t y i s confined to Europe; however the straight appendages of the c o l l e c t i o n would place i t here rather than i n M. a l n i .  On Lonicera sp.,  N.Saanicb, l e g . W. Jones (E-768).  M. a l n i (Wallr.) Salm. vex. v a c c i n i i (Schw.) Sal$U  (Plate:I, fig.7)  Appendages long f l a c c i d , apex more i r r e g u l a r l y branched than i n M. a l n i . On Chlogenes h i s p i d u l a (L.) Torr. & Gr., Agassiz, l e g . H.H.Ross (H-1449).  M. d i f f u s a Qke. & Pk.  (Plate I , fig.8)  P e r i t h e c i a amphigenous, 55-126 n  diameter; appendages variable i n number and length, apex 3- t o 5-times dichotcmously branched, t i p s not recurved; a s c i 4-9, 48-60 x 28-30 u, /  ovate-oblong, short stalked; spores 3-6, 18-22 x 9-H u .  On Symphorieaxpos  albua (L.) Blake, very common; C a r l i n , l e g . G.E.Woolliams (H-l719), Fraser Valley, l e g . W.Jones (H-530), Kelowna, l e g . G.E.Woolliams (H-1572), Notch H i l l , l e g . B.Lawson (H-965), Summerland, l e g . M.F.Welch (H-l598, H-964), U.B.C, l e g . B.Lawson (H-963).  Phyllact i n i a Lev. P e r i t h e c i a l a r g e , globose-depressed to l e n t i c u l a r ; true appendages  23.  equatorial, r i g i d , a c i c u l a r , with a bulbous base; apex of perithecium with a mass of densely crowded branched outgrowths from the epidermal c e l l s ; a s c i many, two- or r a r e l y three-spored* P. corylea (Pers.) Karst.  (Plate I, fig.9)  P e r i t h e c i a usually hypophyllous,  140-350 n diameter; a s c i 5-45, s u b c y l i n d r i c a l to ovate-oblong, 60-105 x 25-45 n, more or l e s s stalked; spores 2, r a r e l y 3, 30-42 x 16-25 ji» Alnus oregona Nutt.,  On  P r a i r i e Valley, Summerland, l a g * G.E.Woolliams (S-7,  CPDS 1933); A. s i t c h e n s i s Sarg., Summerland (CPDS 1952); Amelanchler a l n i f o l i a Nutt., Oyama, l e g . G.E.Woolliams (H-l718); Cornus N u t t a l i i i Aud», Vancouver, l e g . J.E. Bier (U-13), N.Saanich, l e g . W.Jones (H-761), l e g . I.Mounce (V-2171), Cowichan Lake, l e g . H.E.Foster (V-569, V-2092); C. pubeseens Nutt., Sidney, l e g . W.Jones (H-350), Summerland, l e g . G.E.Woolliams (S-128); C. s t o l o n l f e r a Michx., Summerland, l e g . G.E.Woolliams (S-3, CPDS 1932); Corylus sp«, Cloverdale, l e g . B.E.Fitzpstrick (H-961); Crataegus sp., C a r l i n , l e g . G.E.WooU iams (H-l717), Metchosin (CPDS 1928); Holodlscus d i s c o l o r (Purah.) Maxim. (Spiraea d i s c o l o r Pursh.), N.Saanich, l e g . W.Jones (H-351) CPDS 1933) •  Podosphaera Kunze P e r i t h e c i a globose o r globose-depressed; appendages brown or h y a l i n e , dichotomously branched at apex; aseus s o l i t a r y , subglobose; spores 8. Basal and a p i c a l appendages both present, a p i c a l u s u a l l y uAbranched and blunt...............  .........p. leucotrieha  Basal appendages absent; others more or l e s s spreading andfequatorially inserted; ultimate branches knob-shaped.•  ..............P. oxyacanthae  24.  P. leucotrieha ( E l l . & Ev.) Salm.  (Plate I , fig.10)  P e r i t h e c i a densely  gregarious. 75-96 n diameter, subglobose; a p i c a l appendages 3-11, dark brown to pale at t i p s , apex undivided and blunt; basal appendages sometimes nearly obsolete* sometimes w e l l developed, short, simple or branched; ascus oblong t o subglobose, 55-70 x 44-50 u; spores 22-26 x 12-14 u, crowded.  On Pyrus Malus L., Naramata, l e g . H.R.McLarty (H-l681), Summer-  land, l e g . D.L.Mcintosh (H-1546), Vancouver, l e g . I.C.MacSwan (H-27).  P. oxyacanthae (DC.) de Bary  (Plate I, f i g . 11)  P e r i t h e c i a amphigenous,  64-90 u diameter; appendages spreading, 4-30, dark brown, apex 2-4 times dichotomously branched, ultimate branchlets rounded, knob-shaped; ascus broadly obovate to subglobose, 58-90 x 45-75 n; spores 8 ( r a r e l y 6), 1830 x 10-17 U.  On Prunus avium L., Penticton (H-1475); P. demissa (Nutt.)  D.Dietr., O l i v e r , l e g . R.E.Pitzpatrickj and J.BJuott (H-1576); Carl i n , l e g . G.E.Woolliams  (H-l716); P. emarginata (Dougl.) Walp., N.Saanich, l e g .  W.Jones (H-342); Prunus sp., c u l t i v a t e d cherry, common, L i l l o o e t , l e g . B.Lawson (H-957), Trepanier, l e g . R.E.Fitzpatrick (H-1592), Naramata, l e g . W.R.Eoster (H-1636), Lytton, l e g . D.L .Mcintosh and G.E.Woolliams (H-l704), Penticton, l e g . A.G.Carter (H-1884).  On apricot (CPDS 1940),  pear (CPDS 1938)•  Sphaerotheca Lev. P e r i t h e c i a subglobose; appendages floccose, brown o r hyaline, simple or vaguely branched, frequently obsolete; ascus s o l i t a r y , eight-spored. Mycelium p e r s i s t e n t , thick, pannose, forming dense patches composed of special hyphae, i n which the p e r i t h e c i a are more or l e s s immersed.  25.  Persistent mycelium usually satiny and shining, white, sometimes becoming grey or pale brown.....  .S. pannosa  Persistent mycelium dark brown.  .S. mors-uvas  Mycelium without these characters* C e l l s of outer wall of p e r i thee ium 10-20 jx wide, averaging 15 u....  ..Sjjjhumuli  C e l l s 20-30 ( r a r e l y 40) u wide, averaging 25 n«....................... .S. humuli var. f u l i g i n e a  S. humuli (DC.) Burr.  (Plate I , fig.12)  diameter, c e l l s averaging 15  P e r i t h e c i a amphigenous, 58-120 p  wide; appendages v a r i a b l e , few or numerous,  usually long, dark brown; ascus broadly e l l i p t i c a l to subglobose, r a r e l y short stalked, 15-90 x 50-72 p; i r a g a r i a sp. (CPDS 1938); leg.  spores 8, 20-25 (rarely 30) x 12-18 p.*  Geranium viscosisaimum F i s c h . & Mey.,  F.R.Bewell (S-194); G i l i a l i n e a r i s Gray, Quesnel, l e g .  Henchera glabra W i l l d . , Smithers, l e g . p a l u s t r i s Scop., Summerland,. l e g . Penticton, l e g . Summerland, l e g .  Bridesville,  W.Taylor (H-1883);  J.W.£astham (H-1380); Potent i l i a  T.M.C.Taylor (H-1800); Rhus glabra L.,  G.E.Woolliams (H-1594), East Kelowna, l e g .  H.R.Mclarty (S-58),  M.F.Welch (S-242); Rubus maeropetalus Doug!., N.Saanich  (H-863); R. p a r v l f l o r u s Mutt., U.B.C, l e g . ab i l i a Pur ah., M i l l Bay, l e g .  I.CMacSwan (H-1487); R. spect-  W.Jones (H-865I, Ladner, l e g .  U.B.C, l e g . I.CMacSwan (H-1489), Agassiz, l e g . raspberry, Gordon Head, l e g .  W.Jones (H-276),  H.H.Ross (H-1448); Rubus sp.,  W.Jones (H-864); Shepherdia canadensis Nutt.  (CPDS 1933); V i o l a T r i c o l o r L . 1944)•  On  t  E l k Lake (CPDS 1948); V i o l a sp. (CPDS 1937,  26*  S. humull (DC.) Burr. vaj» f o l l g i n e a (Schlecht.) Salra.  (Plate I , fig.13)  P e r i t h e c i a u s u a l l y smaller, 50-100 jx diameter, c e l l s l a r g e r , averaging 25 p. wide; spores 20-25 x 12-15/1,  On Agoseris aurantiaca (Hook*) Greene,  Bridge Lake, Cariboo, l e g . J.W.Eaathem (H-1882); A. glanca (Nutt.) Greene, Canal F l a t s , l e g * J.g*Eastham (H-I881); Bidens cernua L», Surrey, l e g * W.Jones (H-275, H-277); C a s t i l l e j a l u t e scene (Greenm.) Bydb., Summerland, leg.T.C.Brayshaw (H-1878), C a s t i l l e j a sp., Lumby (H-1891); Coreopsis g r a n d i f l o r a (CPDS 1940); Coreopsis sp., Summerland, l e g . M.F.Welch (H-1649); Lactnea a c a r l o l a L * ,  (CPDS 1925, given as S. Castagnei Lev.); L* splcata  (Lam.) Hitchc., South Canoe, l e g . G.E.Woolliams (S-24); Rubus sp., raspberry (CPDS 1925); Taraxacw o f f i c i n a l e Weber, Summerland, l e g . G.E.Woolliams (H-1590), Duncan (H-1887); Taraxacum sp., Summerland, l e g . B.Lawson (H-82, H-960, H-958), Saanich, l e g * W.Jones (H-866), L y t t o n , l e g * B.Lawson (H-959).  S* jlors-uvae (Schw.) Berk. & Curt.  P e r i t h e c i a amphigenous, subglobose,  76-110 u diameter, mycelium p e r s i s t e n t , dark brown; appendages few, pale , brown, short; ascus e l l i p t i c - o b l o n g to subglobose, 70-92 (-110) x 50-62 u; spores 20-25 x 12-15 p»  On Ribes nigrum L*, Summerland, l e g * B.Lawson  (H-953); R. sativum, Abbotsford, l e g . B.Lawson (H-1520); Ribes sp*, Salmon Arm, l e g . T.Lott (H-274), Vancouver (H-1894)*  S* pannosa (Wallr.) Lev*  Mycelium p e r s i s t e n t , white t o pale brown; p e r i -  thecia immersed i n the mycelium, globose to pyriform, 85-120 u diameter, appendages few, short, pale brown; ascus broadly oblong to globose, 88-115 x 60-75 n; spores 8, 20-27 x 12-15/1. ,0n Prunus sp., peach, Summerland (H-1895); reported i n CPDS on rose and nectarine*  27*  Une i n u l a Lev. P e r i t h e c i a globose to depressed; appendages simple or once o r twice dichotomously forked, uncinate at apex, hyaline, r a r e l y dark brown; a s c i several, two - to eight-spore do  U. necator  Appendages colored f o r h a l f t h e i r length or more Appendages c o l o r l e s s *  U. a c e r i s  Appendages a l l or nearly a l l branched..*... Appendages a l l simple© A s c i 4- to  6-spored...........••••*•••  A s c i 7- t o 8-spored.....  * U» aceris (DC.) Sacc*  ..U*  aalicls  U. c i r c i n a t a  (Plate I, fig.14, P l a t e 71, fig.26)  Amphigenous,  mycelium evanescent or persistent; p e r i t h e c i a hemispherical or globosedepressed, 120-225 p. diameter; appendages numerous, hyaline, thick-walled, mostly b i f i d , uncinate; a s c i 4-12, subpyriform or oblong, with or without short s t a l k , 70-95 x 45-55 u; spores usually 8, 22-26 x 13-15 u.  This  species i s given by Salmon. (1900:92) as confined to Europe and A s i a *  The  f i r s t authentic record on t h i s continent appears i n CPDS (1929:97), on Acer, N.Saanich. illustrations  The appendages-are b i f i d and exactly as i n Tulasne's  (1931, Vol.I, PI.II, f i g . 2 - 3 ) .  On Acer agaerophyllum Pursh*,  Duncan (H-1888), N.Saanich, l e g . W.Jones (H-827), U.B.C, lego I.CMacSwan (fi-1488), l e g . M.E.Barr (H-1885) •  U. eireinatum Cke. & Pk.  Hypophyllous, mycelium evanescent, or persistent  i n spots; p e r i t h e c i a rounded-lenticular, (125-) 160-225 u diameter; appendages very numerous, apex simply uncinate; asci 9-26, narrowly ovate or c y l i n d r i c a l , 68-86 x 29-40 u; spores 8, sometimes 7, 18-22 x 10-14 ^i©  On Acer sp.,  28.  V i c t o r i a (CPDS 1928), not seen. U. necator (Sehw.) Burr.  (Plate I , fig.15)  Amphigenous, mycelium usually  subpersistent; p e r i t h e c i a globose-depressed, 70-128 u diameter; appendages very variable i n number and length, 7-32 (-40), l i g h t or dark amber-brown i n the lower h a l f ; a s c i 4-6 (-9), broadly ovate or ovate-oblong to subglobose, 50-60 z 30-40 u ; spores 4-7, 18-25 z 10-12 j i *  On Parthenocissus sp.,  Summerland, l e g * M. IT. Wei eh (H-1597); V i t i s sp., Summerland, leg.,B.Lawson (H-955)*  U. s a l i e i s (DC.) Wint.  (Plate I, fig.16)  Amphigenous, mycelium evanescent  or persistent; p e r i t h e c i a globose-depressed or l e n t i c u l a r , 90-175 u diameter; appendages u s u a l l y numerous, 100-150, hyaline, apex simply uncinate; a s c i 8-14, r a r e l y 4-6, e l l i p t i c - o b l o n g or broadly ovate, stalked, 55-80 z 30-40 u ; spores 4-6, 20-26 z 10-15 u.  On Myrlca Gale L., Cowichan Lake, l e g . R.E.  Foster, det. H.S.Jackson (H-1889, V-325); t h i s host has not been previously recorded, however p e r i t h e c i a and appendages agree w e l l , a s c i are broadovate, 69-78 z 54-60 u , spores are longer, 22-29 z 15 u»  On Populus trem-  uloides Mlchz., Summerland (CPDS 1940); P. trichocarpa T.& G., Summerland (GPDS 1940); S a l i z spp., Summerland, l e g . G.E.Woolliams (H-1568, H-1673, S-2, S-9), T r a n q u i l l e , l e g . V.C.Brink (H-1892), C u l t i s Lake, l e g * H.H.Ross (H-1450), Stanley Park, Vancouver, l e g * B.Lawson (H-84), South Canoe, l e g * G.E.Woolliams (S-19), between Vernon and Armstrong, l e g . G.E.Woolliams (S-42)*  2. Perisporlaceae P e r i t h e c i a more or l e s s globose, black, membranaceous, without o s t i o l e , opening i r r e g u l a r l y at apez; a e r i a l mycelium l a c k i n g or dark-colored, appendages none; a s c i f a s c i c u l a t e , ovate to clavate; spores variously shaped  29. and colored; paraphyses l a c k i n g or present.  Spores one-celled, brown*  •••  ................Pettiella  Spores two-eelled. Spores hyaline*  .  Dimerosporium  Spores brown* Bases of p e r i t h e c i a stalked and immersed i n the substrate•.*••••• .Phaeocryptopus Bases o f p e r i t h e c i a not stalked, s u p e r f i c i a l or immersed i n dark a e r i a l mycelium*  .................*Dimerium  Dimerium 3aec*& Syd* P e r i t h e c i a globose* membranaceous, on w e l l developed brown mycelium; a s c i globose to ovate, eight-spored; spores two-celled, brown* D. alpinum W.B.Cooke (1949:609)  (Plate I , fig.17)  P e r i t h e c i a black,  membranaceous, i n a dense mycelial mat, 100-250 n diameter* hyphae of subiculurn black, thick-walled, septate; asci obclavate, 36-58 z 8.5-15 u; spores brown, two-celled, c o n s t r i c t e d at the septum, lower c e l l s l i g h t l y smaller, uniseriate to b i s e r i a t e , 11.5-15 z 4.5-6  u.  forming black crusts  on leaves o f Penstemon f r u t l c o s u s (Pursh.) Greene, Cathedral Lakes (H-l981)*  Dimerosporium F c k l • As Dimerium, but spores hyaline* Spores l a r g e , 27-30 z 6-10 Spores smaller, 13-24  n..*.  & 3.5-7  u  D. A b i e t i s .D. Tsugae  30* D. A b i e t i s Dear.  (Plate I , fig.18)  P e r i t h e c i a on branching  brownmycelium,  hypophyllous, densely clustered, dark-brown, 100-180 u diam.; hyphal appendages numerous, brown, obtuse, sometimes septate, 30-80 x 4-5 ji; ovate, (33-) 40-60 x (15-) 21-28 fx; one-septate, 27-30 x 9-10 ^a©  asci sessile,  spores conglobate i n the ascus, hyaline,  On Abies lasiocarpa (Hook.) Nutt., Cinema  (H-1982, 7-5492); immature, with spores samaller than i n description.  D. Tsugaa Dear.  (Plate I , fig.19, Plate 71, fig.27)  P e r i t h e c i a hypo-  phyllous, gregarious on t h i n branching anastomosing subiculurn, dark-brown, globose, 75-135 ji diameter; a s c i variable i n shape,; obclavate to c y l i n d r i c a l , 36-66 (-76) x 12-25 yu;  spores b i s e r i a t e to conglobate, hyaline, one-septate,  sometimes nucleate i n one o r both c e l l s , upper c e l l usually l a r g e r , 13-24 x 3.5-7 j i .  On leaves o f Tsuga heterophylla (Rafo) Sarg., Arrowhead, leg©  W.G.Ziller (H-l984, 7-6476), Cowichan Lake, l e g . J.E.Bier, det. I.L.Conners (0-14363, 7-346), leg..W.G.Ziller, det. D.B.O.Savile (0-25161, 7-4604), l e g . D.C.Buckland (U-540, U-551)j Port Clements, Queen Charlotte Island, l e g . R.E.Foster, det. LL.Gonners (0-14362, H-l983, 7-348), Revelstoke, l e g . W.G. Z i l l e r , det. D.B.O.Savile (7-5731, 0-25172), Terrace, l e g . W.G.Ziller, det. D.B.O.Savile (0-25190, 7-5984).  P e t r i e l l a Curzi P e r i t h e c i a s u p e r f i c i a l , on brown hyphae, brown to black, globose to conical or beaked; a s c i ovate,evanescent, §4ght-spored; spores yellowbrown, one-celled, e l l i p s o i d or ovate© P. asymmetries Curzi  (Plate I , fig.20)  P e r i t h e c i a globose to conical or  beaked, s u p e r f i c i a l , on intertwined brown hyphal strands, brown-black,  31. 150-240 p diameter, beak up to 90 p long; asci ovate, with a slender evanescent s t a l k , e a r l y evanescent, 21-27 x 1 8 p  t  8-spored; spores  yellow-brown, one-celled, with numerous r e f r a c t i v e globules, e l l i p s o i d or ovate, flattened on one side, somewwith hyaline apiculum at one end, 7.5-12 x 4.5-6 ;u.  Isolated from seeds o f Beta vulgaris L., Armstrong,  by J.W.Groves, det. E.W.Mason (0-14924); from seeds o f Oucumls melo L., Armstrong, det. J.W.Groves (0-14922); from seeds o f Ranhanua sativus L«, Grand Bbrks, det. J.W.Groves  (0-14923).  Phaeoeryptopus Naumoff P e r i t h e c i a globose to depressed, base stalked and immersed i n the substrate, parenchymatous;  ostiole i r r e g u l a r ; mycelium effused, super-  f i c i a l , brown; a s c i c y l i n d r i c , eight-spored, paraphysate; spores oneseptate , f u l i g i n o u s . P. gaumannii (Rohde) Petrak  (Adelopus Gaumannii Rohde)  (Plate I* fig.21)  P e r i t h e c i a s u p e r f i c i a l , hypophyllous, black, membranaceous, globose, 5075 ja. diameter; a s c i ovate-oblong, s e s s i l e , 18-27 x 8-15 / i , ?aparaphysate; spores crowded, greenish-hyaline, (immature), one-septate, not c o n s t r i c t e d , guttulate, 8.5-13.5 x 3-4.5 p..  On leaves o f Pseudotauga t a x i f o l i a (Lam.)  B r i t t • , Gowichan Lake, l e g . R.A.Waldie (7-561, 7-2013, 7-2014), Cultus Lake, l e g . W.G.Ziller (H-1980, 7-6468), Green Timbers, l e g . J.E.Bier (H-l979 , 7-2012, 7-2011), Hope, l e g . W.D.Touaeau (0-7264), Kersley, l e g . G.E.Woolliams (H-1604), Pemberton, l e g . W.D.Touzeau (0-7262), Saanichton, l e g . LMounce (0-7263 , 0-7265), Stanley Park, Vancouver, l e g . R.E.Poster (7-2015), Vancouver Island and Eraser 7 a l l e y (CPUS 1941).  32. 3. Microthyriaeeae P e r i t h e c i a flattened, or hemispherical, w a l l often l a c k i n g below, opening by a round pore at the apex, brown to black, membranaceous, often o f r a d i a t i n g mycelium; a e r i a l mycelium dark-colored or l a c k i n g ; a s c i globose, orate or clavate, f a s c i c u l a t e , usually eight-spored;  spores  variously shaped and colored; paraphyses l a c k i n g or present.  Spores  o n e - c e l l e d . . . . . . . . . . * A a t e r u l a  Spores two-celled* Spores hyaline to greenish o r yellowish* A e r i a l mycelium pre sent•••••••.••••..••••••••••••••••** * A s t e r e l l a A e r i a l mycelium lacking* Scores unequally two-celled, yellowish*»«.*-•• ********Stigmatea Spores equally two-celled* hyaline..........» *»»Mlorothyrium Spores brown*  ....*.....  ..*••••••  ..*.....•••• .Asterina  A s t e r e l l a Sacc* P e r i t h e c i a globose, depressed or l e n t i c u l a r , membranaceousj o s t i o l e c i r c u l a r ; seated on spots o f black r a d i a t i n g subsuperficial mycelium; a s c i mostly eight-spored, globose or e l l i p s o i d ; spores two-celled, hyaline to subhyaline;.paraphyses  Spores l a r g e , 9-12  lacking©  x 3-4/-•••••.••••••••••••••*.•  .*»*•«*A* Gaultheriae  Spores smaller, 7*5-9 x 2-3 p.*.................*.*•......  A* Gaultheriae (Curtis) Sacc*  (Plate I, f i g . 22)  *A* H e l l e b o r i  P e r i t h e c i a brown to black,  flattened, s l i g h t l y r a i s e d i n the centre, hypopnyllous, 170-300 ja. diameter; mycelium brown, radiating around the base o f the perithecium; a s c i orate,  33.  21-25  x 13-16.5 p. (elongating at maturity), aparaphysate; spores hyaline,  2-eelled, obovate, upper c e l l broader, 9-12 x 3-4 p  e  On leaves o f Gaultherla  Shallon Purah., Crofton (H-1985). *A*  THellebori Rehm  (Plate I , f i g . 23) P e r i t h e c i a small, globose, black,  membranaceous, 90-105/1 diameter; surrounded a t the base with septate, branched, brown hyphae; a s c i clavate, s e s s i l e , (18-) 36-45 x 4.5-7.5 u; aparaphysate; spores clavate, 2-celled, b i s e r i a t e , hyaline, 7*5-9 x 2-3 u . On Astragalus Macounil Rydb., Cathedral Lakes (H-2007}; no A s t e r e l l a has bees described on Astragalus, but t h i s c o l l e c t i o n f i t s the above species*.  A s t e r i n a Lev* As A s t e r e l l a , but spores brown* A. r u b i c o l a E l l . & Bv*  (Plate I , fig.24)  P e r i t h e c i a epiphyllous, s o l i t a r y  or grouped, on yellow-brown i n d e f i n i t e spots, depressed-hemispherical, o s t i o l e plane, 75-150 u diameter; a s c i oblong, s e s s i l e , 35-54 x 12-16.5 u; spores b i s e r i a t e , o v a t e - e l l i p s o i d , yellowish-brown, one-septate, upper c e l l broader, 12-16.5 x 6-8 / i *  On leaves o f Rubus sp., Sunmierland, l e g . G.E.  Wooliiams, det. I.L.Conners (0-3366, S - l l , GPDS 1933)*  Asterula Sacc* As A s t e r e l l a , but spores one-celled, hyaline* Two c o l l e c t i o n s key t o t h i s genus; i n neither case was a description found to f i t , but the s c a r c i t y o f material prevents description as new species* Asterula sp* On Phleum alpinum L., Cathedral Lakes (H-2009): P e r i t h e c i a black, shiny, f l a t t e n e d , membranaceous, o f r a d i a t i n g mycelium, surrounded  34*  at base by hyaline hyphae, o s t i o l e umbilicate, 85-150 u diameter; a s e i cylindric-oblong, s e s s i l e , eight-spored, aparaphysate, 30-38 z 6-7.5  u,  spores hyaline, one-celled, narrow e l l i p s o i d , o b l i q u e i n the ascus, 7-9  z  1.5-3 jx* On Pote nt i l l a diver ei f o l i a Lehm., A t l i n D i s t r i c t , l e g . W.A.Setchell (H-1998): P e r i t h e c i a s u p e r f i c i a l , black* shining, flattened,-membranaceous, 90-150 jx diameter; a s c i s e s s i l e * oblong, aparaphysate, 36-45 z 15-18 p.,  eight-spored;  spores one-celled, greenish-hyaline, b i s e r i a t e , ovate e l l i p s o i d , granular, 12-15  z 6-7.5ji.  The p e r i t h e c i a are s i m i l a r i n appearance to those o f  Microthyrium arcticum Oudem., but a s c i are much broader and spores one-celled*  Microthyrium  De am*  P e r i t h e c i a s u p e r f i c i a l * without.aerial mycelium, shield-shaped, perforated at the centre, membranaceous, brown to black; asci c y l i n d r i c a l to obovate; spores oblong to fusold, one-septate, hyaline; paraphyses mostly lacking* Spores l a r g e , 15-25 ^ i long...  ...*M» Juniper 1  Spores smaller, not over 12 jx long* P e r i t h e c i a black and shiny, gregarious*•••• P e r i t h e c i a brown, d u l l , scattered...........  M. arcticum Oudem* (Plate I, fig.25)  ...*....M* arcticum *..»M* microscopicum  P e r i t h e c i a s u p e r f i c i a l , gregarious on  leaves, minute* 60-120 jx diameter, of r a d i a t i n g mycelium, membranaceous, black and shiny, o s t i o l e a pore i n the centre; a s c i aparaphysate, clavate, 33-45 (-50) z 1*5-3  z 7-9  (-4.5) jx*  (-12) jx;  spores biseriate, hyaline, one-sept ate, 9-10  (-12)  On P o t e n t i l l a f l a b e l l i f o l i a Hook*, Cathedral Lakes (H-1999);  Slbbaldla procumbens L*. G a r i b a l d i , l e g . W.Cottle (H-2OO8)  0  35* M* Juniper! (Beam.).Sacc*  (Plate I, fig.26, Plate 71, fig.28) P e r i t h e c i a  epiphyllous, s u p e r f i c i a l , d i m i d i a t e - l e n t i c u l a r , membranaceous, brownblack, o s t i o l e minute i n r a i s e d centre, 160-300 jx diameter; a s c i broadly c y l i n d r i c a l , abruptly narrowed to a short s t a l k , eight-spored, (60-) 75 (-90)  i 20-24/i; spores hyaline to greenish, b i s e r i a t e ,  70-  one-septate,  s l i g h t l y c o n s t r i c t e d at the septum, upper e e l l broader, 15-25  i 6-10»5 n*  On l i v i n g leaves o f Junlperus scopulorum Sarg., Soda Greek, l e g * J.Bancroft (H-1976), Fort Steele, near Cranbrook, l e g . A.K.Parker (H-1978); J * ? s l b i r i o a Burgsd., Soda Creek, l e g * J . Bancroft (H-1977).  M* Tmicroscopicum Desm. P e r i t h e c i a f l a t t e n e d , brown, 50-150 jx  diameter;  of r a d i a t i n g mycelium; asci ovate-oblong, s e s s i l e , eight-spored (13£) 30 x 7-10  (-12) jx,  2L-  aparaphysate; spores b i s e r i a t e or i r r e g u l a r , elongate-  ovate, hyaline, with one septum s l i g h t l y nearer the lower end, 7*5-10 x 2-3.5  u*  Two  c o l l e c t i o n s on Pteridophytes are doubtfully placed here;  no other species f i t s as w e l l , but t h i s species i s noted only on leaves of deciduous trees*  On Dryopteris sp* (H-2010) and Polystlchum munitum  (Kaulf*) P r e s i . (H-2011), Stanley Park, Vancouver*  Stlgmatea F r i e s P e r i t h e c i a smooth, s u p e r f i c i a l , membranaceous, o s t i o l e minute; asci oblong, subsessile, eight-spored, paraphysate;  spores o v o i d - e l l i p s o i d ,  unequally uniseptate, yellowish-hyaline* S. Robertiani Fr*  (Plate I, f i g . 27)  P e r i t h e c i a scattered or, grouped  l o o s e l y , s u p e r f i c i a l , - smooth and shining, 65-140 p. diameter; a s c i oblong, s e s s i l e , broader below, 33-45 x 10-14  u;  paraphyses scanty;  spores  36.  subbiseriate. uhiseptate, upper c e l l broader, greenish, 12-14  x 4-6  u*  On l i v i n g leaves of Geranium pus i l i u m Burm* f * , Cult i s Lake, l e g * H.H.Ross (H-l975)*  HYPOGHEALES P e r i t h e c i a globose, ovate, c o n i c a l , c y l i n d r i c a l , fusoid, or f l a s k shaped, free o r seated on or immersed i n a f l e s h y stroma; bright-colored, white, yellow, red, brown, v i o l e t , o s t i o l a t e ; wall membranaceous or fleshy; asei c y l i n d r i c a l , clavate or subovoid, four- to e i g h t -  (sixteen-)  spored; paraphyses present; spores simple or compound, hyaline or  colored,  globose to filiform©  4* Nectriaceae P e r i t h e c i a free or seated on a stroma and cespitose; stroma often obscftred at maturity by p e r i t h e c i a , but presence indicated by  cespitose  perithecia© Stroma absent, p e r i t h e c i a f r e e , scattered or gregarious* P e r i t h e c i a clavate, spores f i l i f o r m , hyaline**.****** i Perithecia-globose,  ©Aorospermum  conical or ovate, spores ovate, fusoid or  elliptical* Spores one-celled,  ovate, yellow to brown*  P e r i t h e c i a beaked. P e r i t h e c i a without beak  Melanoapora  >Sro8trotheea  Spores two-celled, hyaline, f u s o i d or e l l i p t i c a l * Peritheoia subepidermal, becoming erumpent-superficial  Nectriella  37.  Perithecia superficial  .Nectria  Stroma present, p e r i t h e c i a cespitose on the stroma; spores two-celled, hyaline  Creonectria  Acrospermnm Tode ex F r . P e r i t h e c i a s u p e r f i c i a l , single or i n small groups, f l e s h y - c a r t i l a g i n o u s to coriaceous, horny when dry; creamy-white when young, at maturity honeyyellow to brown or brownish-black;  elongate-clavate to s u b c y l i n d r i c , s e s s i l e ;  asci l o n g - c y l i n d r i c a l ; paraphyses threadlike, longer than a s c i ; spores f i l i f o r m , nearly as long as the ascus. A . compresaum Tode. P e r i t h e c i a brown to black, clavate, up t o 3 mm. i n length; asci c y l i n d r i c a l , 200-400 x 4-7 ^ i , paraphysate;  spores f i l i f o r m ,  nearly as long as the ascus, hyaline. This fungus i s retained i n the Nectriaceae In Accordance with Bisby (1938: 45) and Wehmeyer (1950: 31); i t s status i s probably close to the Coryneliaceae (Brandriff, 1936)*  On  Draba Paysonil Macbr. var. T r e l e a a i i (Schulz.) H i t c h c , Tenquille Lake, Pemberton, l e g . W.Taylor (H-1817)*  Broatrotheca Martin & Charles (1928) P e r i t h e c i a s u p e r f i c i a l , gregarious or scattered, globose-conical, beakless, glabrous, diaphanous; stroma absent; a s c i a r i s i n g b a s a l l y , evanescent, eight-spored; spores e l l i p s o i d , yellow to olivaceous. B. multiformis Martin & Charles.  P e r i t h e c i a gregarious o r scattered, at  f i r s t Capucine yellow changing to mahogany red with age; a s c i clavate, 20-25 x 12-16 jx, aparaphysate, short stalked; spores i r r e g u l a r l y b i s e r i a t e ,  38* e l l i p t i c a l , flattened!.on one side, dark c i t r i n e , olive-yellow i n mass© Only the imperfect stage (Cladoaporium album Dowson) noted; on Lathyrus sp* (CPDS 1952)o  Cre one ct r i a Seave r (Nectria F r i e s i n part) P e r i t h e c i a globose or subglobose, on or with bases immersed i n a fleshy stroma, o s t i o l e often depressed with age; a s c i c y l i n d r i c a l or clavate eight-spored; spores u n i - o r biseriate or crowded, e l l i p t i c a l to fusoid, straight or curved, 1-septate, hyaline; paraphyses present or lacking*  P e r i t h e c i a d u l l brick-red becoming brown or black with age,  stroma  tubercular, prominent•••.•••••••••*•••.........o..............o.0* purpurea P e r i t h e c i a scarlet or blood-red, becoming reddish-purple with age* Spores e l l i p t i c a l with ends obtuse* P e r i t h e e i a collapsing with age, becoming truncate.>**C* p i t h o i d e s P e r i t h e c i a e n t i r e , o s t i o l e very prominent............C. mammoidea Spores fusoid with ends acute or subacute* Spores narrow-fusoid, on deciduous trees.••...........»C. coccinea Spores broad-fusoid, on coniferous wood............0. Cucurbitula C. coccinea (Pers*) Seaver  (Plate I, fig.28)  Stroma yellowish, springing  from the crevices of bark i n i r r e g u l a r patches; p e r i t h e c i a cespitose i n dense i r r e g u l a r c l u s t e r s , or occasionally scattered, ovate with a prominent o s t i o l e , bright red, smooth or minutely roughened, about 300 u diameter; asci c y l i n d r i c a l or clavate, eight-spored, 80-90 x 8-10 j i ; spores unlseriate fusoid, 11-16 x 3-6.8 jxo  On bark o f Acer macrophyllum Pursho, Cowichan Lake  l e g . W.G.Ziller (0-26108, H-1825, 7-3415), Bast Sooke, l e g . W.G.Ziller  39, (0-26098, H-1824, 7-3063); A. clreinatum Purah., Haney, l e g . W.G.Ziller (0-23348, 7-4503)• C. Cueurbltula  (Sacc.) Seaver  (Nectria Cucurbltula Sacc.) (Plate I, fig.29)  P e r i t h e e i a i n erumpent and i r r e g u l a r c l u s t e r s , cespitose, bright red, l a t e r becoming reddish-purple,  ovate with a prominent, obtuse o s t i o l e , e n t i r e or  r a r e l y collapsing; a s c i c y l i n d r i c a l or clavate, 75-120 z 6-8  (-13)  u; spores  at f i r s t crowded and p a r t i a l l y b i s e r i a t e , f i n a l l y u a l s e r i a t e , oblique, broad-fusoid, one-septate, not constricted, hyaline, 14-22.5 z 4.5-7p.* On bark of Abies grand!s L i n d l . , Cowichan Lake, l e g . I.Mounce and J*.Curtis, det. I.L.Conners (0-1912, GPDS 1933)•  C. mammoidea ( P h i l . & Plow.) Seaver  (Nectria mammoidea Phil.& Plow.)  P e r i t h e c i a cespitose or scattered, surrounding a brownish stroma, l a r g e , about 500/1  diameter, ovate, o s t i o l e l a r g e , obtuse, bright red with o s t i o l e  often darker, shining, e n t i r e ; a s c i c y l i n d r i c a l or s l i g h t l y clavate, 100  z  7-8 u, spores uniseriate or p a r t i a l l y b i s e r i a t e above, oblique,  subfdsoid,  one-septate, usually s l i g h t l y unequal-sided, 18-20  seen,  z 6-7/u  Not  mentioned i n North American Pyrenomycetes ( E l l i s & Everhart, 1892; on bark o f maple, B.C.,  106),  Macoun.  C. pij»holdes ( E l l . - c Ev.) flg.30, Plate 71, fig.29)  Seaver  (Neetria pithoides E3.1.& Ev.)  (Plate I,  Stroma erumpent, yellowish; p e r i t h e c i a seated on  the stroma i n dense c l u s t e r s , bright red, collapsing to become truncate, resembling the head o f a b a r r e l with the o s t i o l e appearing as a l i g h t  trans-  lucent dot i n the centre, 200-250 u diameter; a s c i c y l i n d r i c a l , 70-80 z 5 jx; spores e l l i p t i c a l , one-septate, with an oil-drop i n each c e l l , hyaline, 6-10  z 3-4 jx*  On bark of dead alder, Agassiz, l e g . J.Macoun (OM-122, CKJTXPB),  40. described by E l l i s and Everhart (1890; 247); E l k Lake, Vancouver Island, l e g . J.Macoun (CM unnumbered, A p r i l 18, 1915), confirmed by J.Dearness.  C. purpurea (L.) Seaver  (Nectria cinnabarina Fries)  (Plate I , fig.31)  Stroma erumpent, tubercular, pinkish becoming darker with, age; p e r i t h e c i a nearly globose, o s t i o l e rather prominent, s l i g h t l y collapsing, at f i r s t bright cinnabar-red, becoming darker with age to brown and occasionally black; roughened with coarse granules, 375-400 jx diameter; a s c i clavate, 50-105 x 7-17- (-15) jx; spores mostly b i s e r i a t e * e l l i p t i c a l , elongated,. one-septate, hyaline, s l i g h t l y curved, 12-20 x 4.5-7*5 ^n; paraphyses d e l i cate*  On bark o f various trees and shrubs:  Acer macrophyllum Pursh*,  U.B.C* (H-1828, U-370), V i c t o r i a , l e g * P.J.Salisbury (U-55); Alnns oregona Nutt*, U.B.C., l e g * H.Pepin (H-l815); Chaenomeles l a g e n a r i a Koida*, Japanese quince, North Vancouver, l e g * S.Brown-John (Hfl822); Choiaya ternata HBK, V i c t o r i a (CPDS 1934); Ficus sp., U.B.C. (H-1827); Pyrus Malus L«, Salmon Arm, l e g * F.Dickson (H-216), South Canoe, l e g *  G.E.Woolliams  (S-86); Rubus sp., raspberry, Saanichton, l e g . J.Macoun (OM unnumbered, Aug.l, 1916); Spiraea Menziesli Hook., Sidney, l e g . J.Macoun (OM-372 , 373)a  Creoneetria sp.  (Plate I , fig.32)  On bark o f trees, Hastings, A p r i l 12,  1889, l e g . J.Macoun (OM-25); on the packet i s written N e c t r i a Macouniana E.& E. n.sp. but according to J.Dearness the name was never published* The fungus most c l o s e l y resembles Creoneetria memmoidea ( P h i l . & Plow.) Seaver.  P e r i t h e c i a grouped on a yellow stroma, bright red, granular, 256-  446^1 diameter; c o l l a p s i n g pezizoid with age, o s t i o l e prominent, smooth, darker red; a s c i c y l i n d r i c a l , 78-105 x 9-12 jx; spores u n i s e r i a t e , e l l i p t i c a l , uniseptate and s l i g h t l y constricted a t the septum, flattened on one s i d e , 13-16.5 x 6-7.5 ya*  41.  Melanospora Corda P e r i t h e c i a s u p e r f i c i a l , without stroma, globose-pyriform, with a long neck, tipped with h a i r s and p e r i t h e c i a often hairy; a s c i broad-elavate four- to eight-spored, evanescent; spores simple, brown*  Spores e l l i p t i c a l ,  flattened on one side, often curved*.......>M* p a p i l l a t a  Spores b r o a d - e l l i p t i c a l , not flattened  M» p a p i l l a t e Hotson  (Plate I, f i g . 33)  .  »..**_» Townel  P e r i theeia brown, fleshy, globose,  p a p i l l a t e , 350-450 u diameter; a s e i clavate, evanescent, 60-75 x 24-36 n; spores hyaline at f i r s t , becoming deep brown except f o r a hyaline t i p or apieulum at each end, one-celled, e l l i p s o i d , f l a t t e n e d and s l i g h t l y curved on one side, 21-33 x 10-16*5/1*  Isolated from seeds o f Phaseolus coeeineus  L., scarlet runner bean, Vancouver (0-14909); V i c l a faba L«, broad bean, New Westminster  (0-18353); both i s o l a t e d and determined by J.W.Groves*  M* Townel G r i f f i t h s  (Plate I, fig.34, Plate VI, flg.30) P e r i t h e c i a straw-  colored, centre darkened by spore mass, globose, 200-330 p diameter; neck elongate, 145 x 55 p, b r i s t l e d at the apex; a s c i e a r l y evanescent, ovate, eight-spored; spores at f i r s t hyaline, becoming dark brown, broad-ellipsoid to ovate, apiculate at each end, with a large g u t t i e , 19*5-24 x 15-18*25 u* On pressed specimens o f Amaranthus sp*, Windermere, l e g * G.E.Woolliams (H-1826)»  Nectria Fries  ————————  ;  P e r i t h e c i a s u p e r f i c i a l , free, scattered t o crowded, globose, ovatec o n i c a l , o s t i o l e papill1form, obtuse, or obscure; color whitish to reddishpurple; asci c y l i n d r i c a l or clavate, eight-spored; spores hyaline, one-  B  42 septate, e l l i p s o i d , fusoid or fusiform*  P e r i t h e c i a not collapsing, o s t i o l e p a p i l l a t e *  M« g a l l l g e n a  P e r i t h e c i a c o l l a p s i n g a t maturity, o s t i o l e obtuse* Spores narrow-fusoid; on wood  *  ...N*  sanguines  Spores broad-fusoid; on sphaeriaceous fungi**.****....**M> episphaeria  N. eplsphaerla (Soda) Fr»  (Plate I , fig*55)  P e r i t h e c i a gregarious or  scattered, s u p e r f i c i a l , subovoid, b i l a t e r a l l y collapsing when dry, smooth, blood-red, p e r i t h e c i a l wall composed o f rather coarse c e l l s , 150-250 diameter; a s c i c y l i n d r i c a l * 60-75 x 5-7 (-9) u; spores obliquely u n i s e r i a t e , broad-fusoid, 9-12 x 4-6 ^ i , one-septate, hyaline*  On Diaporthe eolumbiensls  H l * & Ev.,. Hastings, l e g * J.Macoun (QM-52); Dlatrype Macounii SL1.& Ev*, Royal Oak* Vancouver Island, l e g * J.Macoun (OM unnumbered, Sept.29, 1914& A p r i l 8, 1915); Eutypella s t e l l u l a t a (Br.) S a c c , U.B.C. (H-1829); Hypoxylon sp*, and Melanconis thelebola..(.Br*) S a c c , Cowichan Lake, l e g * W.G.Ziller (0-26101:, Hfl820, V-3466, V-3557).  N. galllgena Bres*  (Plate I , fig.36)  P e r i t h e c i a d u l l red when dry, scattered,  globose-conical, 500 x 370 jx; asci clavate, stalked, 66-96 x 7.5-8 p;  spores  hyaline, one-septate, e l l i p s o i d , uniseriate or p a r t i a l l y b i s e r i a t e , 15-18 x 4-5 iio  On apple and pear, Vancouver and Alberni (H-399, H-26, CPDS 1926,  1931, 1935, 1939, 1946)*  N. sanguines Br.  (Plate I, fig.37)  P e r i t h e c i a gregarious or scattered,  s u p e r f i c i a l , ovoid, mostly e n t i r e , often c o l l a p s i n g when prematurely d r i e d , smooth, blood-red, shining, about 200-275 x 250-300 j i ; o s t i o l e obtuse but prominent; a s c i c y l i n d r i c a l , 60-75 x 6-7 p;  spores obliquely arranged i n the  43  G  ascus, uniseriate below, p a r t i a l l y b i s e r i a t e above, narrow fusoid or sube l l i p t i c a l , one-septate, s l i g h t l y constricted at the septum* granular, 10-12  (-15) z 4-5  (-6) u*  On o l d b i r c h , Hastings, lege J.Macoun (CM-34)o  Nectriella Fckl* P e r i t h e c i a subepidermal, becoming erumpent, globose or subglobose; a s c i eight-spored, c y l i n d r i c a l or clavate, paraphysate; spores hyaline, one-septate* N e c t r i e l l a sp.  (Plate I, fig.38)  The following three c o l l e c t i o n s are  somewhat Immature, therefore cannot be placed i n a species d e f i n i t e l y * On Arnica l a t i f o l i a Bongo, Cathedral Lakes (H-l972): P e r i t h e c i a salmon pink, diameter; a s c i clavate, paraphysate, 45-50 z 9-14 jx,  210-240  f i l l e d with  granular m a t e r i a l , immature* 0 1 1  Lupinus l a t i f o l i U B Agh* var* subalpinus (Piper and Robins*) CP.Sou,  Cathedral Lakes (H-2051):  P e r i t h e c i a pink to brownish, 200-270 p. diameter;  a s c i 54-60 z 9-12 u, clavate, paraphysate, f i l l e d with granular m a t e r i a l , immature* On Phloz d i f f u s a Benth*, G a r i b a l d i , l e g . W.Cottle (H-1816): P e r i t h e c i a pink, 180 u diameter or l a r g e r ; a s c i clavate, paraphysate* 54-66 z 13-15 p.; spores one-septate when mature, 13-18 z 6-9 u, obliquely b i s e r i a t e , e l l i p s o i d , ends rounds d  e  5* Hypoereaceae Stromata conspicuous, on the substratum or a r i s i n g from a sclerotium, effused without d e f i n i t e margin, p a t e l l a t e , substipitate or erect; p e r i t h e c i a p a r t i a l l y to e n t i r e l y immersed i n the stroma; a s c i c y l i n d r i c a l or clavate, e i g h t - to sizteen-spored; spores subglobose to f i l i f o r m , simple or compound,  44*  hyaline o r colored*  Stroma seated d i r e c t l y on the substratum* usually pate H a t e or effused* r a r e l y clavate and erect* Spores fusiform j usually on fleshy fungi . . . . . . . . . . . . . . . H y p o m y c e s Spores f i l i f o r m ; on stems o f grasses  Epjchloe  (Typhodium)  Stroma springing from a s c l e r o t i c a , u s u a l l y erect and clavate, r a r e l y depressed* S c l e r o t i a formed i n the bodies o f insects o r f r u i t i n g organs of fungi*.  ••  •••Cordycegs  S c l e r o t i a formed i n the ovaries of plants**.....Claviceps  (Spermoedia)  Claviceps T u l . (Sjermoedia Fries) S c l e r o t i a formed i n the inflorescence of various grasses and sedges; stromata developed from sclerotium, consisting o f s t e r i l e stem and f e r t i l e head, head subglobose, grayish, reddish-brown, or yellowish; p e r i t h e c i a flask-shaped,  immersed i n the stroma with necks protruding;  eight-spored;  spores f i l i f o r m , simple, hyaline*  asci c y l i n d r i c a l ,  S c l e r o t i a formed i n ovaries o f Carex spp*, not over 15 mm. longe..C* G r o h i i S c l e r o t i a formed i n ovaries of w i l d and c u l t i v a t e d grasses, 1-2 cm. long.  C. Grohii Groves  *....  (Plate I , fig.39)  .Co purpurea  Sclerotia blackish-violet, usually  curved, 5-15 x 1-3 mm.; stalk reddish brown, slender, twisted, . 2 5 - . 5 x 4-15 mm*, head globose, p i n k i s h , o s t i o l e s darker red, .8-2.0 mm. diameter; p e r i thecia 150-300 x 100-150 u; a s c i c y l i n d r i c a l , short stalked, (100-) 125160 (-175) x 5-6 jx\ spores f i l i f o r m , (75-) 90-125 x 1-0..5ya*  In ovaries o f  45*  Care- a t e H u l a t a Good., Milner, l e g . H.Groh (0-12072, TYPE),(Groves 1943: 608); Carex a f f . f e s t i v e l l a Mackenzie, Aldergrove, l e g * H.Groh, det. J.W.Groves (0-12073),  C, purpurea T u l ,  (Spei-oedla Claras (DC,) Fr,)  (Plate I,  fig.40)  Sclerotia  hard, purplish-black, 1-2 cm, long; stromata 20-30 from a single sclerotium; stem slender, flezuous or s p i r a l l y twisted, dark-brown; head subglobose, 1-2 mm,  diem,, reddish-brown; p e r i t h e c i a e n t i r e l y immersed or s l i g h t l y pro-  truding, flask-shaped, 150-175 x 200-250 jx; asci very long, c y l i n d r i c a l , 100-125 (-170) x 4-4,5 j i ; spores f i l i f o r m .  This species has been c o l l e c t e d  on many genera of grasses; i t i s a complex of b i o l o g i c a l races requiring cross-inoculation studies*  In ovaries of Agropyron eristatum (L.)  Gaertn,,  Agassiz, l e g , W.Jones (H-269); Arena sat I r a L,, (CPDS 1930); Bromus inermls Leyss, (CPDS 1930); Calamagrostis canadensis (Michx.) Beauv, (CPDS 1933); —lymus arenarins L., Kami oops, l e g * V.Krajina (H-1530); E. canadensis L«, P r a i r i e Valley, Summerland, l e g , G.E.Woolliams  (S-1S); E , condensatus Pre s i * ,  T r a n q u i l l e , l e g * V.C.Br ink (H-1551); B* glaueus Buckl,, N.Saanich, l e g * W.Jones (H-682); E» Macounii Vaaey, Nicola V a l l e y , l e g . V.C.Brink (H-15591; Elymua sp*, U.B.C, l e g , D.Elvidge (H-978); Festuea e l a t l o r L., Fraser Valley* l e g , W.Jones (H-270); Hordeum vulgare L*,  Saanich, l e g . W.Jones (H-258,  CPDS 1925, 1934, 1936); Lolium perenne L., Ladner, l e g * W.Jones (H-259, CPDS1934, 1945); Phleum pretense L., (CPDS 1930); Secale cere ale L*, Summerland, l e g * G.E.Woolliams  (S-231); Trltieum aestivum L., (CPDS 1930)*  Cordyeeps (Fr.) Link Stromata springing from the sclerotium within bodies o f insects or i n other f u n g i , simple or branched, clavate; p e r i t h e c i a more or l e s s Immersed;  46* a s c i c y l i n d r i c a l , eight-spored; spores f i l i f o r m , many-septate and breaking into segments i n the ascus or simple and e n t i r e * C. myrmecQphila Pes.  On ants, Vancouver, l e g * J.Davidson, not seen (Mains  1947)*  Epichloe. (Fr*) T u l *  (Typhodlum Link)  Stroma effused, subfLeshy, pale becoming bright orange, forming r i n g s or sheaths about the stems o f grasses; p e r i t h e c i a Immersed or with o s t i o l e s protruding; a s c i c y l i n d r i c a l , eight-spored} spores f i l i f o r m , many-septate* 5* typhina (Pars.) Tul*  (Typhodlum typhinum (Pers*) Seaver)  Stroma effused,  subfieshy, at f i r s t pale, becoming bright orange, p e r i t h e c i a t h i c k l y scattered, p a r t i a l l y t o e n t i r e l y immersed, s o f t , membranaceous, orange, o s t i o l e prominent; a s c i c y l i n d r i c a l , very long, eight-spored; spores n e a r l y as l o n g as the ascus, i n a close f a s c i c l e , about 2ya diameter, many-septate© Holcus lanatus L*, U.B.C*, l e g * H.Toms (H-1823)*  On  Mature stromata have never  been collected; although the Immature stage has been noted and watched through the year, p e r i t h e c i a were not formed©  Bypomyces (Fr*) T u l * Stroma o f effused, cottony subiculum, p a r a s i t i c otL fleshy fungi; p e r i t h e c i a numerous, usually t h i c k l y scattered and immersed i n the subiculum; a s c i c y l i n d r i c a l , eight-spored; spores f u s o i d o r fusiform, usually with an apiculus at each end, one-septate, hyaline, smooth o r rough*  Stroma e n t i r e l y covering and transforming the hymenium o f Lactariae; p e r i t h e c i a immersed...................*........  ».H* Lactifluorum  Stroma forming interrupted patches on fungi o f various kinds; p e r i t h e c i a sub s u p e r f i c i a l *.*• • • • • •  • • • *»H* aurantlus  47, (Plate I , f i g . 4 1 , Plate 71, fig.31)  H* aurantiua (Pers.) T u l .  Subiculum  efrosed, at f i r s t whitish, becoming orange o r rust-colored; p e r i t h e c i a t h i c k l y gregarious or crowded, orange, subeonieal, with the o s t i o l e s strongly protruding; a s c i c y l i n d r i c a l , spores s l i g h t l y overlapping, 126160 z 4-7 j i ; spores fusiform, usually a l i t t l e curved, one-septate, with a short apiculus a t each end, becoming strongly verrucosa at maturity, 22-27 x 4-6ya*  On Pomes p i n i c o l a (ir») Cke* on Tsuga heterophylla (Raf»)  Sarg., Hope, l e g * W.G.Ziller (H-1818, 7*6014); Polyporus resinosus Fr«, on Tsuga heterophylla (Raf.) Sarg*, Wigwam, Revelstoke, l e g . W.G.Ziller, (H-l819, 7-6556); Polyporus sp., on Tsuga heterophylla (Raf.) Sarg*, Martha Creek, Revelstoke, l e g * W.G.Ziller (H-1821, 7-6568, 7-6581).* Ho Lactifluorum (Schw.) T u l * (Plate I , fig.42)  Subiculum t h i n , effused,  covering the hymenium and stem o f the host and e n t i r e l y o b l i t e r a t i n g the g i l l s , bright orange, changing t o bright purple as the host decays; p e r i thecia t h i c k l y scattered, immersed o r with necks s l i g h t l y protruding, a l i t t l e darker than the subiculum; a s c i very long, c y l i n d r i c a l ; spores u n i s e r i a t e , ends overlapping, fusiform with an apiculus at each end, s l i g h t l y curved or unequal-sided, one-septate, hyaline, strongly roughened at maturity, 35-45 x 6-8 jx oozing from the p e r i t h e c i a and forming a t  white powder over the surface o f the stroma*  On L a c t a r i a sp., Savory  Island, l e g . M.Herchmel (H-975), Hatzig, l e g . W.Jones (0-3994).  DQTHIBSALES  Stroma always present, brown o r black throughout or white w i t h i n ; p e r i t h e c i a lacking, a s c i i n l o c u l e s i n the stroma which lack a d e f i n i t e  4 8 .  w a l l ; stroma elongated, round, or several stromata coalescing to form an i r r e g u l a r mass; true paraphyses lacking, rather pseudoparaphyses the  filling  locule with a s c i growing up into them; a s c i clavate or c y l i n d r i c a l ,  stalked; spores variously shaped and colored*  6* Dothideaceae Characters those of the order*  Spores u n i c e l l u l a r  ••••••••••••*•••...•»  ,,.Phyllachora  Spores two- to several-celled© Spores uniseptate, hyaline to yellowish* Stromata large and prominent, erumpent from branches o f treeso.,,,,,,,. a,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,o«Dibotryon B  Stromata smaller and t h i n , on leaves and stems o f herbaceous plants* On leases,of T r l f o l i u m spp*; aparaphysate, spores with yellowish t i n t * *  ...........Cymadothea  On Monocotyledons; paraphysate, spore s hyaline * *Endodothella Spores muriform, brown.......  *  .Cucurbidothis  Cucurbidothis Petrak Stromata c r u s t - l i k e , variously shaped; p e r i t h e c i a seated i n the stroma! globose, broad p a p i l l a t e , black; a s c i c y l i n d r i c a l , stalked, eight-spored; spores u n i s e r i a t e , oblong, muriform, yellow-brown* C. plthyophila (gr») Petrak  (Plate I I , f i g . l )  P e r i t h e c i a carbonaceous, on  a black stroma; a s c i c y l i n d r i c a l , 120-135 z 9-11 u; spores olive-brown,  49* 3-5-septate with 1-2 v e r t i c a l septa, 17.2-20.6 x 6-8 p.  P  On Pinus monticola  Dougl., NaliAsp,, l e g . R.W.Davidson (H-1835, V-6749); Shawnigan Lake, lego R.E.Foster, et e l . , (H-1833, 7-5750, 0-26771); V i c t o r i a Watershed, l e g . A.K.Parker (H-1834, V-6728).  Cymadothea Wolf Stroma innate, erumpent, dothideoid, brown; p e r i t h e c i a imbedded i n the stroma, i r r e g u l a r l y dehiscent, spherical to ampulliform; a s c i clavate, aparaphysate, eight-spored;. spores two-celled, subhyaline to honey-yellow. C. T r l f o l i i ( P e r s . l Wolf  (Wolf 1935:  71)  Perfect stage not collected;  Polythrinolum T r i f o l i l stage causing sooty blotch of clover»  On T r i f o l i u m  hybridum L., To pratense L., and T. repens L., Vancouver Island and Fraser Valley, not seen (H-1586, H-370i H-354, H-218, H-353, B>371; GPDS 1930, 1935, 1936, 1937, 1939, 1940.).  Dibotryon Theiss & Syd. e  (Plowrlghtia Sacc.)  Stroma convex-pulvlnate, confluent, black coriaceous; a s c i elongated, eight-spored; spores ovoid to oblong, two-celled, hyaline to l i g h t D. morbosum (Schw.) Thelss. & Syd. (Plate I I , f i g . 2 , Plate 71, fig.32)  green.  (Plowrlghtia morboaa (Schw.) Sacc») P e r i t h e c i a p a r t i a l l y erumpent from the  black stroma; asci clavate, 75-100 x 13-15p\\ spores ovate-oblong, lower c e l l much smaller than upper, 15-18  (-24)  unlseptate,  x 7.5/1. On Prunus armeniaca  L . var. An da, Agassiz, l e g . R.E.Fitzpatrick (0-19794); Prunus demlssa (Nutt.) Walp., A u s t r a l i a n , Cariboo, l e g . W.Jones (H-667), Vernon (H-1837), Keremeos l e g . R.P.Murray (S-280* GPDS 1939); Prunus sp., Cowichan Bay (H-1534), Spence's Bridge (U-426), C l i n t to (17-357); on w i l d and c u l t i v a t e d plum and cherry (GPDS 1926, 1933, 1937, 1943, 1944, 1945, 1946, 1947). 1950).  (Stace-Smith  50© Bndoddthella Theiss. & Syd. P a r a s i t i c * stromata simple or compound, o s t i o l e present; a s c i c y l i n d r i c a l to broadly e l l i p s o i d , paraphysate; spores hyaline.two-celled© E, Tracyi (EH.&  Ev.) Theiss* & Syd*  Immature* no a s c i present*  On  D i s t i c h l i s s t r i c t a (Torr*) Rydb,, O l i v e r , det. I.L.Conners (10-15234).  Phyllachora N i t s c h . P a r a s i t i c , simple or compound, p e r i t h e c i a with clypeus conspicuous i n one or both l e a f surfaces; o s t i o l e present; paraphyses f i l i f o r m ; a s c i c y l i n d r i c a l to broadly e l l i p s o i d ; spores one-celled, hyaline©  (Orton,  1944)  Spores medium sized, 9-13 u long; c l y p e i e l l i p t i c a l to l i n e a r i n outline..,.  ...P. gram i n i s  Spores l a r g e , 12-20  u long; c l y p e i c i r c u l a r to oval i n o u t l i n e .  •  •  P. graminis (Pars.) Fckl©  (Plate I I , fig.3)  «...P© a i l v a t i o a Stromata numerous; a s c i c y l i n -  d r i c a l , 90-95 s 9 u; spores u n i c e l l u l a r , hyaline, 9-13 x 4.5-7.5 jio  On  Dactylis glomerata L», Harrison Lake (H-1836); Elymus condensatus Pres., U.B.C. (H-1832); TPoa sp., L u l u Island, l e g . B.Lawspn (H-1831), Kamloops, l e g . J.Macoun (0M-154).  P. 3 i l v a t i c a Sacc. & Speg.  (Plate I I , fig.4)  Stromata oval, with few  p e r i t h e c i a ; a s c i broadly c y l i n d r i c a l , 90-105 x 12-15 n; spores 12-16.5 x 7.5-9 p.*  On Pestuca rubra L., Sidney, l e g * W.Jones (H-760)©  Dothideaeeae indet*  (Plate I I , fig.5)  According to Theissen & Sydow's  c l a s s i f i c a t i o n (Saccardo 1926: 535, 551) t h i s specimen f a l l s Into the  51.  genus Phrogmodothella« £iexcept that paraphyses are l a c k i n g 4n that genus; i t does not f i t e i t h e r o f the two species given there.  Stromata elongate,  black; p e r i t h e c i a l l o e u l e s 120-200 ^1 diameter, walls l i g h t brown; paraphyses numerous; a s c i c y l i n d r i c a l , 60-78 x 7.5-9  jx;  spores 1-7  i n an ascus,  u n i s e r i a t e , three-septate, hyaline or greenish, with a large/guttule i n each c e l l , 15-18  x 7-8 i i .  On decorticated wood, Cathedral Lakes (H-1838).  3PHAERIALES P e r i t h e c i a (generally) with d i s t i n c t , rounded, sometimes elongated o s t i o l e s , membranaceous to carbonaceous, not f l e s h y - f r a g i l e , brown to black; stroma, i f present, dark outside, mostly white within, p e r i t h e c i a l walls d i s t i n c t ; a s c i variously shaped, stalked or s e s s i l e , with or without paraphyses; spores of various shapes and c o l o r s .  7. Chaetomiaceae P e r i t h e c i a s u p e r f i c i a l , free or seated on s u p e r f i c i a l mycelium, colored or black; o s t i o l e rounded, plane, sometimes l a c k i n g , clothed with c h a r a c t e r i s t i c a l l y s t r a i g h t , branched,or s p i r a l l y wound h a i r s ; a s c i clavate or c y l i n d r i c a l , stalked, eight-spored, evanescent; spores oner c e l l e d , mostly broad-«llipsoid and short apiculate (lemon-shaped), dark colored, smooth; paraphyses none©  Chaetomlum Kunze Characters those o f the family. Hairs l i g h t yellow-green, terminal ones of s t r a i g h t and mixed  •.••••••••.••...•••••*..•••.  Hairs brown, terminal ones i n a tight spiralis  spiral C.  eoehliodes C. s p i r a l s  52*  C. coehllodes P a l l i s e r  (Chlvers 1915: 204)  (Plate I I , fig.6)  Brilliant  yellow-green; l a t e r a l h a i r s numerous, roughened; terminal h a i r s straight and tapering or l o o s e l y s p i r a l l y twisted; a s c i club-shaped, eight-spored, 88 x 11 n, p.sp. 32 jx% spores olive-brown, lemon-shaped, apiculate a t both ends, 8-10 x 6-8 jx,  compressed, with edge 4.5-6 /a*  On cardboard and paper  towelling i n moist chamber, c o l l e c t e d Duncan (H-1904).  C. ?splrale Zopf (Plate I I , f i g . ? , Plate VI, fig.33) dark brown to black, 150-300 p  P e r i t h e c i a ovate,  diameter, seated on dark olive-yellow to  brown r h i z o i d s ; l a t e r a l h a i r s nearly straight, dark olive-brown; terminal h a i r s r i c h olive-brown, roughened, s p i r a l l y c o i l e d ; a s c i clavate, p i s p . 34-43 p. long, spores lemon-shaped, ovate or spherical, olive-brown, x 5*5-9yu, edgewise 5.5-7 jx broad*  6-12  What comes most n e a r l y to t h i s species  was found on decaying plant remains of Oryria digyna (L.) Camptdera, Cathedral Lakes (H-1905)*  8* Sordariaceae P e r i t h e c i a e i t h e r s u p e r f i c i a l , free or more or l e s s deeply sunken i n the substrate, with or without a stroma, membranaceous or f r a g i l e , dark colored; o s t i o l e d i s t i n c t , round, without a t u f t o f h a i r ; a s c i c y l i n d r i c a l , stalked, 8- to many-spored; spores one- to several-celled, often with membranaceous sheath and appendages, brown; paraphyses presents Spores one-celled, with or without hyaline sheath or appendages* P e r i t h e c i a beneath a black crusty stroma*......a..........*.»Hypocopra P e r i t h e c i a l a c k i n g stroma, Immersed or s u p e r f i c i a l * P e r i t h e c i a with stout, spiny neck; spores o b l o n g - e l l i p t i c , pale brown*.  •••••••••••••••  Acanthorhynehus  53<  P e r i t h e c i a globose or c o n i c a l , without  spines; spores dark  brown, e l l i p s o i d * • . • . • • • • • • • • • • • • • . • • • • • * • •  •..*•.Sordaria  Spores at f i r s t long c y l i n d r i c a l , hyaline, guttulate, appendaged, at maturity with upper part swollen, dark brown, lower part as hyaline primary a p p e n d a g e s . . . . • • • • • •  .Bombardia  Acanthorhynchus Sheer P e r i t h e c i a submembranaceous, scattered, buried, beaked; beak spiny, o s t i o l a t e ; a s c i eight-spored,. paraphysate; spores one-celled, brownishyellow* Ao v a e c i n i i Shear (1907)  (Plate I I , f i g . 8 , Plate 71, fig.34)  Perithecia  amphigenous, scattered, subglobose, to flask-shaped, submembranaceous, 120-200 fx diameter; neck stout, o s t i o l a t e , 1/3  to 1/2 the length of the  perithecium, with black, nonseptate spines, 50-70 z 8-9 jx at base; a s c i s u b e l l i p s o i d , subsessile, eight-spored, 120-155 z 24-44 n; paraphyses septate, exceeding the a s c i ; spores o b l o n g - e l l i p t i c , one-celled, ,pale brownish-yellow, 24-32 z 12-18 jx*  On leaves of Taccinium Oxycoccos L*,  L u l u Island, l e g * A.Szczawinaki (H-l926)«  Bombardia F r i e s P e r i t h e c i a s u p e r f i c i a l , clustered, coriaceous; asci perforate a t apex, with r e f r a c t i v e globule i n the upper end; spores when young long c y l i n d r i c a l , hyaline, bent, guttulate, with tapered appendage at each end; at maturity, upper end o f spore swollen, dark brown, cut o f f by a septum, lower part r e maining as hyaline primary appendage, secondary appendages frequently brois&n of f  e  54.. Bo amblgua (Sacc.) Wint* var. carbonari a Ream.  (Plate I I , fig.9)  Peri-  thecia grouped, coriaceous, covered with short brown h a i r s , with longer hyphae at base, oblong, 800 z 500 fx; a s c i c y l i n d r i c a l , long stalked, p.sp. 160-210 x 15-19 p., eight-spored; paraphyses long, branched; spores at f i r s t c y l i n d r i c a l , bent, with many guttules, hyaline, appendage a t both ends, at maturity spore brown, e l l i p s o i d , 18-21  z 9-10.5 u, primary appendage  c y l i n d r i c a l , curved, 38-44 z 5 n, secondary appendages long and slender* On wood covered with sand, U.B.C. (H-1923)*  Eypocopra F r i e s P e r i t h e c i a situated below a black crusty stroma with p r o j e c t i n g , u s u a l l y pap i l l i form beaks, completely surrounded by a dense feltwork of white mycelium by which they are f i r m l y attached to the substratum; a s c i containing an apical structure which s t a i n s , eight-spored, c y l i n d r i c a l or clavate; paraphyses f i l i f o r m to tubular; spores e l l i p s o i d , dark colored, surrounded by a prominent gelatinous envelope and containing a l a t e r a l germ slit© H* glgaspora (211 • & 2v*) G r i f f i t h s  (Coprolepa gigaspora _L1*&  Ev ) 0  P e r i t h e c i a very l a r g e , scattered or aggregated i n small c l u s t e r s , sunken, with the short p a p i l l i f o r m black smooth beak erumpent through the smooth black convex shield-shaped stroma, about .75 z 1 mm.,  membranaceous to  coriaceous, c o l o r l e s s to brown and densely covered with a fine white mycelium which becomes gradually d i f f e r e n t i a t e d above into a true stroma; asci eightspored, c y l i n d r i c a l , broadly rounded above and abruptly contracted below into a short t r i a n g u l a r base, §5-52 z 375-480 p.; apical structure very prominent and staining bright blue with iodine; paraphyses tubular to f i l l f o r m , tapering upward, septate, coarsely guttulate, longer than the a s c i ;  55c  spore8 obliquely u n i s e r i a t e , e l l i p s o i d to oval and broadly rounded at the ends, 24-28 z 52-61  ranging from hyaline when young through yellow to  dark brown end opaque* tipped below with a short blunt hyaline apiculum; germ s l i t l a t e r a l , rather i n d i s t i n c t , extending nearly the e n t i r e length of the spore, surrounded by a hyaline gelatinous zone*  On cow dung,  Rocky Mountains, B r i t i s h Columbia, June, 1897, Macoun, No*684*  (Ellis  and Bverhart 1898: 501; G r i f f i t h s 1901: 93)*  Sordaria Ces. & de Not* P e r i t h e c i a scattered or aggregated, s u p e r f i c i a l or sunken, membranaceous or coriaceous, dark and opaque; a s c i a p i c a l l y perforated; spores one-celled, usually dark brown and surrounded by a gelatinous hyaline covering*  A s c i eight-spored; p e r i t h e c i a bare o r covered with brown flezuous hyphae* Spores without apiculum or appendages; surrounded by a gelatinous sheath *  •••  . • •..  . *S* f l m i c o l a  Spores with minute appendage or second c e l l at base, l a c k i n g gelatinous  sheath***••................o.•...•.•*....*.So  hypocoproides  A s c i 128-spored; p e r i t h e c i a covered with s t r a i g h t , septate brown h a i r s . . . . . ...oo S. f l m i c o l a (Rob*) Ces. & de Not.  (Plate I I , fig.lO)  *S» setosa  P e r i t h e c i a bare,  neck conical; asci eight-spored, c y l i n d r i c a l , 140-160 z 16-19/1, aparaphysate; spores obliquely u n i s e r i a t e , 16-23 x 11-13 j i , surrounded by hyaline g e l a t inous sheath, germ pore c i r c u l a r , basal*  Isolated from seeds o f Cucurbita  maxima Duchy, squash,, by J.W.Groves, Grand Forks (0-14958); from seeds o f Daucus carota L», by J.W.Groves, Okanagan Mission (0-14882); on horse dung in moist chamber, U.B.C. (H-1924).  56o  S» hypocoproides Speg*  (Plate I I , f i g . H )  P e r i t h e c i a scattered or i n  small c l u s t e r s , nearly s u p e r f i c i a l , pyriform, 450-700 x 320-370 yi, nearly bare or with brown flexuous hyphae to the base o f the p a p i l l a t e neck, coriaceous, dark brown to black; asci eight-spored, c y l i n d r i c a l , 230-260 x 20-25 uf stipe 50 u long; paraphyses f i l i f o r m , septate; spores o b l i q u e l y u n i s e r i a t e , e l l i p s o i d , 25-36 x 13-20  u, broadly rounded above, s l i g h t l y  truncate below, with a papillifoxm hyaline basal c e l l , 5-6 x 6-9 u, any hyaline, gelatinous sheath or appendages*  without  Isolated from seeds o f  Raphanus sativus L., det* R.F.Cain, Grand Forks (0-13539).  S» setosa Winter  (Plats I I , f i g . l 2 )  P e r i t h e c i a s u p e r f i c i a l , pyriform,  600-800 x 400-500 u, membranaceous, greenish-brown, neck p a p i l l a t e ,  200-  250 u long; covered with s t r a i g h t , septate, brown, hyaline-tipped h a i r s , 100-150 x 3-5 u; asci 128-spored, fusiform-clavate, 300-360 x 65-85 u, stalk short; paraphyses longer than a s c i ; spores i n several s e r i e s , e l l i p soid, 19-24  x 11-26  u, broadly rounded at the ends, hyaline to dark brown;  primary appendage 11 x 3 jx  %  s l i g h t l y clavate, long slender secondary append-  ages at each end; germ pore a p i c a l , c i r c u l a r *  Isolated from seed o f Beta  vulgaris L«, mangel, det* R.F.Cain (0-15185)*  9*  Trichosphaeriaceae  P e r i t h e c i a s u p e r f i c i a l , mostly coriaceous to carbonaceous, clothed with b r i s t l e s or h a i r s , often surrounded by filamentous hyphae bearing conidia or seated on a subiculum; stroma l a c k i n g ; a s c i c y l i n d r i c a l or clavate, eight-spored; paraphyses usually present; spores one to s e v e r a l c e l l e d , hyaline or dark colored*  s.  •  57.  '  Spores one-celled, hyaline........  .Trlchosphaerla  Spores more than one-celled* Spores two-celled, hyaline to greenish-brown* P e r i t h e c i a seated on black, septate mycelium which covers the entire lower surface o f the l e a f  Apiosporina  P e r i t h e c i a s u p e r f i c i a l on l e a f , t h i c k l y covered w i t h spines.•••*. o  ,  Coleroa  Spores (two-) mostly several-celled, pale to dark brown* I  P e r i t h e c i a coriacebus to subcarbonaceous; paraphysate.;«•••.....* -... .Herpotrichla P e r i t h e c i a membranaceous to subcoriaceousj aparaphysate'*......... Herpotrichlella  Apiosporina Hohnel P e r i t h e c i a black, globose, crowded on a thick black subiculum covering lower l e a f surface; a s c i eight-spored, paraphysate; spores hyaline- t o greenish, two-celled* A* C o l l l n s i l (Schw.) Hohn.  (Plate I I , fig*13)  Mycelium brown-black, septate,  crustaceous, covering the entire lower l e a f surface; p e r i t h e c i a black, globose,- crowded, 150-160 ji diam*; a s c i c y l i n d r i c a l - c l a v a t e , eight-spored, 45-60 (-68) ovoid, 12-15  x 10-12  u; spores hyaline to greenish, unequally  x 4-7 i i .  two-celled,  On leaves of Aaelanchler a l n i f o l l a Nutt., Wire Cache,  l e g . D.C.Buckland (U-606, U-659); A. f l o r i d a L i n d l . , Port St. James, l e g . G.E.Woolliams (0-7822), Macalister, l e g . J.M*Macalister  (H-671), N.Saanich,  l e g . W.Jones (H-358, Prince George, l e g . W.S.Ziller (0-25180, V-5969), Amelanchier sp., Cache Creek, l e g . M.J.Short (V-4846), Pemberton, l e g . N.S* Wright (H-1930), ftuesnel, l e g . N.S.Wright (H-1513), Vernon, l e g . V.Krajina (H-1528).  58. Coleroa (Fr.) Bab. P e r i t h e c i a s u p e r f i c i a l , membranaceous, spiny; a s c i not thickened at apex, oblong, mostly carved, peraphysate; spores two-celled, greenish to yellow-brown. A s c i 65-75 (-120) x 15-21 / i j spores 15-21 x 6-7.5 p..............C. Oxyriae A s c i 40-54 x 9-12 n; spores 9-13 x 4-6 jx  0. Chaetcmium (Kunze) Rab.  C.Chaetomium  (Plate I I , fig.14) P e r i t h e c i a s u p e r f i c i a l , i n  small c l u s t e r s , globose, membranaceous, covered with s t i f f b r i s t l e s ; asci oblong, s e s s i l e , eight-spored, 40-54 x 9-12 u; paraphyses i n d i s t i n c t ; spores b i s e r i a t e , oblong, two-celled, lower c e l l smaller, greenish brown, 9-13 x 4-6 u.  On leaves o f Rubus p a r v i f l o r u s Kutt., U.B.C. (H-1922).  C. Oxyriae Rostr.  (Plate I I , fig.15, Plate 71, fig.35)  P e r i t h e c i a globose,  s u p e r f i c i a l , 200 jx diameter, coriaceous-membranaceous, covered with dark: sharp-pointed b r i s t l e s ; a s c i obclavate, with a short foot, 66-75 (-120) x 15-21 p.; paraphyses branched; spores greenish-grey, two-celled, lower c e l l smaller, 15-21 x 6-7.5 p»  On dead leaves o f Oxyria digyaia (L.) Camptderis,  Cathedral Lakes (H-1905).  Herpotrichia F c k l . P e r i t h e c i a s u p e r f i c i a l , spherical or depressed, coriaceous to eubcarbonaceous, h a i r y o r glabrous; asci clavate, peraphysate; spores fusiform or oblong, one- to several-septate, brown. H. n i g r a Hartlg  (Plate I I , fig.16) P e r i t h e c i a spherical, 250-450  semi-immersed i n a dark bsown, f e l t - l i k e  diameter,  subiculum; a s c i clavate, (105-) 128-  155 (-180) x (10-) 14-18 jx; paraphyses f i l i f o r m ; spores i r r e g u l a r l y b i s e r i a t e ,  59. ellipsoid-oblong, at f i r s t one- to three-septate and hyaline, l a t e r threeseptate, olivaceous-brown, more or l e s s constricted at septa, SI-33 x (6-) 8.5-9  (-10) ^ i .  On l i v i n g leaves of Abies amabilis(Dougl.) Forbes,  Terrace* l e g . W.G.Ziller (H-l914, V-649S); A. grandis L i n d l . , Shawnigan Lake, l e g . J.Roff (H-65), Jordan River, l e g . D.C.Buckland (H-l913, V-2952I; A. laaiocarpa (Hook.) Nutt., Mt. Revelstoke, l e g . D.C.Buckland (0-19289, u"-398), l e g . G.P.Thomas (H-1912, V-5675); P i c e a sitchensis (Bong.) Garr., Queen Charlotte Islands, l e g . R.B.Foster (TM.821); Tsuga heterophylla (Raf.) Sarg., Mt. McPherson, l e g . D.C.Buckland (U-635).  H e r p o t r i c h l e l l a Petrak P e r i t h e c i a s u p e r f i c i a l , subeoriaceous, globose,„.covered on a l l sides by spines or setae, which are brownish-black, septate* acuminate; a s c i oblong-clavate, eight-spored, aparaphysate; spores subbiseriate, ovateoblong,, brown, three-septate. H e r p o t r i c h l e l l a sp.  (Plate I I , fig.17)  P e r i t h e c i a black, membranaceous,  s u p e r f i c i a l , on twigs, covered with brown, septate, anastomosing hyphae which form a subiculum, globose with a minute o s t i o l e , about 210 ji diameter; a s c i oblong-ovate, s e s s i l e or short-stalked, eight-spored, aparaphysate, 60-75 x 30-36yi; spores d u l l brown, three-septate, s l i g h t l y constricted at the septa, curved, guttulate, 30-33 x 9-12 j i .  On Abies amabilis L i n d l . ,  Cowichan Lake, l e g . R.E.Foster (H-2337, V-2491)  0  This c o l l e c t i o n i s  exceedingly puzzling: i t i s similar to M e l i o l a In subiculum, but the p e r i thecium i s o s t i o l a t e ; the peritheeium, except for subiculum, and ascus shape would plaee i t i n Mycosphaerellaceae; the spores are s i m i l a r to some of Leptosphaeria. I t most nearly f i t s into the genus H e r p o t r i c h l e l l a , where i t i s plaeed f o r the present, but the only species described under  60.  that genua does not f i t t h i s c o l l e c t i o n *  Triehosphaerla Ifcki* P e r i t h e c i a small, s u p e r f i c i a l , membranaceous or sometimes of firmer, subcarbonaceous texture, spherical or ovate, h a i r y or b r i s t l y ; a s c i oblong or c y l i n d r i c a l , eight-spored, peraphysate; spores oblong, ovate or c y l i n d r i c a l , continuous, hyaline* T* brevlseta Dear* (Plate I I , fig*18)  P e r i t h e c i a black, crowded, appearing  to thee naked eye as a continuous stratum, three but not quite four t o the l i n e a l mm*,  globose-conic; b r i s t l e s 15-20  u, usually l i m i t e d to the basal  h a l f of the perithecium; a s c i l i n e a r , 50-75ja, shorter than the abundant paraphyses; spores u n i s e r i a t e , nucleate at each end, hyaline, 6-7 On rotten coniferous wood, V i c t o r i a , A p r i l , 1915, 99)o  x 3-3.5 ja*  John Macoun (Dearness  1916:  A c o l l e c t i o n on bark o f Betula papyrifera Marsh, S i l v e r Creek (H-2331)  appears to be t h i s species*  P e r i t h e c i a 160-200 u diameter, o s t i o l e p a p i l l a t e ,  gregarious with basal spines forming a t h i n subiculum; a s c i c y l i n d r i c a l , 60 x 4*5-6 jx; spores u n i s e r i a t e , hyaline to greenish, 7-6 x 1*5-3  p., two-  to three-guttulate, u n i c e l l u l a r *  10. Melanommeae P e r i t h e c i a globose to c o n i c a l , s u p e r f i c i a l , carbonaceous or woody, occasionally coriaceous, smooth walled or short spiny, a s c i c y l i n d r i c a l or clavate, eight-spored; paraphyses usually present; spores one- to several-celled, hyaline or dark*  Spores one-celled, dark brown* P e r i t h e c i a covered with short spiny h a i r s * .  .......*.»Conioehaeta  61 o  P e r i t h e c i a smooth...  ..<,.....................  .Rosellinia  Spores two- to se vestal-celled, hyaline or brown. P e r i t h e c i a rough-tubercular; spores two-celled, hyaline  ....Bertie  P e r i t h e c i a smooth; spores two- to s e v e r a l - c e l l e d , brown  •Melsnomma  B e r t l a de Not* P e r i t h e c i a s u p e r f i c i a l or nearly so, i r r e g u l a r i n shape, coriaceouscarbonaceous, surface tubercular or coarsely wrinkled, glabrous, black; a s c i clavate, four- to eight-spored; spores elongate, s u b c y l i n d r i c a l , uniseptate, hyaline; paraphyses present. B. moriformis (Tode) de Not.  (Plate I I , f i g . l ? j Plate VI, fig.36)  Perithecia  crowded, s u p e r f i c i a l , ovate-globose, surface coarsely tubercular-roughened, . 500-800 jx diameter; asci elongate-clavate, stalked, 130-165 z 14-16 u , eight-spored; spores crowded, hyaline, f u s o i d - c y l i n d r i c a l , curved, with two guttules, uniseptate, 25-40 (-52) z 6-7 jx.  On bark of AJnus sp.,  Vancouver Island, l e g . J".Macoun (OM unnumbered, Eeb.10, 1915).  Coniochaeta Sacc. P e r i t h e c i a s u p e r f i c i a l , covered on the upper part with spiny h a i r s ; a s c i c y l i n d r i c a l , e i g h t - t o many-spored; spores u n i s e r i a t e , dark, onec e l l e d , s l i g h t l y d i s c o i d , germ s l i t elongated. 0. leucoplaca (Berk. & Rav.) Cain  (Plate I I , fig.20)  P e r i t h e c i a super-  f i c i a l , minute, covered with s t r a i g h t , dark brown, pointed h a i r s 30 z 4 fx; a s c i eight-spored, perforate at the apex; paraphyses f i l i f o r m ; spores obliquely u n i s e r i a t e , d i s c o i d , 7-9 z 6-8 z 5-6 fx, with an elongated germ s l i t i n the narrow face, surrounded by a narrow gelatinous sheath.  Oh  cardboard i n moist chamber, c o l l e c t e d Duncan (H-1931); on horse dung, U.B.C, (H-1925).  62. Melanamaa P c k l . P e r i t h e c i a gregarious o r scattered, s u p e r f i c i a l o r erujgpent,  carbon-  aceous, black, glabrous, spherical or ovate; a s c i c y l i n d r i c a l o r clavate, eight-spored; spores oblong or f u s o i d , two- to several-celled, brown* Spores small, 10-12 z 3-5ya, crowded b i s e r i a t e > » t  »»»*M* parasitieum  Spores l a r g e r , 15 jx long and over* Second c e l l o f spore somewhat enlarged, spores 18-28 z 6-10 ^ i . . . . . . . . . .Mc  cine re um  Second c e l l not noticeably enlarged, spores 15-18 z 4-6 y i o . . . . . . . . . . . . .Mo pulvia-pyrius Mo cinereum (Earst.) Sacc  0  (Plate I I , fig.21)  P e r i t h e c i a gregarious,  attached to inner bark and erumpent through epidermis, becoming f r e e , spherical, black, 200-400 p diameter; o s t i o l e p a p i l l a t e or umbilicate; a s c i c y l i n d r i c a l - c l a v a t e , 120-150 z 10-12 pi paraphyses f i l i f o r m ;  spores  uniseriate or p a r t l y b i s _ * i a t e , oblong, obtuse, 3- (5-) septate, second c e l l enlarged, constricted at the septa, greenish-hyaline, then yellow, 18-28 z 6-10 ji*  On S a l i z babylonica L . , North Vancouver, lego S©Brown-  John (H-1927)* M. parasitieum E l l . & Ev*  (Plate I I , f i g . 22)  P e r i t h e c i a scattered or  gregarious, s u p e r f i c i a l , ovate-hemispherical, 110-165 p. diameter, rough* black; o s t i o l e p a p i l l a t e ; asci o b l o n g - c y l i n d r i c a l , 40-60 z 8-12p, s e s s i l e , aparaphysate; spores crowded-biseriate, grey-brown, oblong-fusoid, threeseptate, s l i g h t l y c o n s t r i c t e d at the septa, 10-12 z  3-5/1* On stromata of  Diatrype sp., on rotten wood, Comoz, l e g . J .Macoun (OM unnumbered, May 3,1887).  63o Ma pulvis-pyrlus (Perse) Eckl©  (Plata I I , fig»23)  P e r i t h e c i a crowded,  sometimes scattered, s u p e r f i c i a l , spherical o r ovate, wrinkled or roughened, black, carbonaceous, 400 u diameter; o s t i o l e p a p i l l a t e ; a s c i c y l i n d r i c a l t o subclavate, stalked, eight-spored, 80-125 z 6-9  paraphyses  f i l i f o r m ; spores u n i s e r i a t e , oblong, s t r a i g h t or curved, three-septate, constricted at the septa, brownish, (10-} 15-18 z 4-6 u . Common on dead wood; on Alnus oregona Nutt., Gowiehan Lake, l e g * W.G.Ziller, det* B.Horner (0-26114, V-3460, H-1919); Corylus c a l i f o r n i c a (A.DC.) Boss, Goldstream Park, l e g * W.G.Ziller (0-26094, V-3507, H-1'920.);  on Vaccinium corymbosum L*,  L u l u Island, l e g * H.Stace-Smith (0-26185, H-1917); on dead wood, Duncan (H-1906), U.B.C. (H-1918), Cathedral Lakes (H-1916).  R o s e l l i n i a Ces. & de Note P e r i t h e c i a s u p e r f i c i a l , occasionally with bases sunk i n the substrate, coriaceous o r carbonaceous; spherical or ovate, black, bare, o s t i o l e d i s t i n c t ; a s c i c y l i n d r i c a l , eight-spored; paraphyses f i l i f o r m ; spores e l l i p s o i d , oblong or fusiform, one-celled, brown o r black. On scales o f pins cones; spores 8-12 z 6-7 U....R. obllquata var* Americana On dead wood* Spores 8*8-15 z 6-7.5 u* without appendages................. R. o v a l i a C  Spores 18-23 z 6-7 j i , with a short (6-8 ji) hyaline appendage a t each end.  o............................B. thelena var. pinea  B. obliquata (Somm.) Sacc. var. Americana E H . & Ev.  (Plate I I , fig*24)  P e r i t h e c i a gregarious, 200-400 ji diameter, depressed-globose,  o s t i o l e acutely  p a p i l l a t e ; a s c i c y l i n d r i c a l , (90-) 120-130 z 6-7 jx\ spores u n i s e r i a t e , e l l i p s o i d , brown, one-celled, 8-12 z 5-7.5 u; paraphyses f i l i f o r m .  On s c a l e s  64*  of dead cone a of Pinus ponderosa Dougl., Vernon (H-1907).  This c o l l e c t i o n  has spores approaching the size o f the species (10-12 x 7 u, Winter 1887: 229), but the p e r i t h e c i a are not obliquely attachedo  B. o v a l i s ( E l l * ) . Sacc,  (Plate I I , fig*25) P e r i t h e c i a s u p e r f i c i a l , globose,  carbonaceous, 200-300 u diameter; a s c i long c y l i n d r i c a l , 90-125 x 7-9  (-10)  n;  paraphyses broad band-like; spores u n i s e r i a t e , oblong-ellipsoid, somewhat flattened, with a l o n g i t u d i n a l germ s l i t , 8*8-15 x 6-7*5 x 5-6 j i , dark brown*  On dead branches o f Artemisia t r i d e n t a t a Mutt., Princeton (H-l909).  R. thelena (Fr.) Rab. var. pine a Sacc*  P e r i t h e c i a scattered or gregarious  or sometimes crowded, s p h e r i c a l , with a strongly p a p i H i f o r m o s t i o l e , smooth, t h i n and b r i t t l e , brownish-black, about 1 mm.  diam,, seated on a  s u p e r f i c i a l , l&osely adhering, densely interwoven but t h i n , brownishpurple subiculum; a s c i c y l i n d r i c a l , s t i p i t a t e , eight-spored, 90-130 x 8-9 u (p.sp.), with eonglutinated paraphyses; spores u n i s e r i a t e , oblong, subi n e q u i l a t e r a l , brown, 18-23 x 6-7 i i , with a short (6-8 p.) shaped appendage at each end.  e  Similar to Melanommeae.  hyaline, spine-  Sent from B r i t i s h Columbia by Dr.Hacoun.  ( E l l i s and Everhart 1892: 166).  ll  9  Not seen.  Ceratostomataceae P e r i t h e c i a more coriaceous than carbonaceous,  with mors or l e s s Elongated beaks, often very long and h a i r l i k e ; a s c i ovate, clavate, or c y l i n d r i c a l , often evanescent before spores mature; spores v a r i o u s l y shaped and colored*  Ceratostomella Sacc* P e r i t h e c i a s u p e r f i c i a l , free or s l i g h t l y sunk i n the substrate, globose,  65* beak long and h a i r l i k e ; asei ovate, eight-spored, e a r l y evanescent; spores oblong, blunt or pointed, one-celled, hyaline* Ceratostcmella ap*  (Plate I I , fig*26)  S i l v e r t o n , l e g . AoK.Parker (H-1915).  On Pinus monticola Dougl*, This c o l l e c t i o n comes nearest t o  C* sphaerosperma (Pekl•) Sacc*, but does not agree completely with that species*  P e r i t h e c i a black, carbonaceous, s u p e r f i c i a l , globose,240-340 u  diameter; beak obtuse at apex, 320-540 x 65-70 u ; a s e i not seen; spores hyaline, clustered together, when emitted forming a drop at t i p o f o s t i o l e , globose to ovate, 1*5-3 p.*  IS*  Oucurbitarlaceae  Perithecia gregarious, formed under the surface of the substrate, l a t e r erumpent and free on a crusty or cushion-like stroma, coriaceous or carbonaceous, firm; a s c i clavate or c y l i n d r i c a l , e i g h t - to many-spored; paraphyses^present; spores one- to s e v e r a l - c e l l e d , hyaline o r dark* Spores one-celled, hyaline..........  .Acanthonitschkea  Spores two-celled, hyaline t o brown  Acanthonitschkea  .Otthia  Speg*  P e r i t h e c i a s u p e r f i c i a l or a brownish-black subiculum o f spiny, irideseent hyphae; p e r i t h e c i a turbinate, o s t i o l a t e , c o l l a p s i n g to cupulate, scattered or densely gregarious, brownish to black, armed with spines, coriaceous to carbonaceous} asci clavate, long-stalked, evanescent, e i g h t spored , aparaphysate; spores biseriate to crowdedj hyaline, one-celled, i n e q u i l a t e r a l to a l l a n t o i d * A. coloradensls Cash & Davidson (1940: 728)  (Plate I I , fig.27)  Perithecia  66. clustered, carbonaceous, subglobose. to turbinate, c o l l a p s i n g , black, d u l l or shining, setose, 200-300 p r i g i d , short and t h i c k , 15-40 c y l i n d r i c a l , 70-75 x 4-5p\  diaiaeter; setae numerous, dark-brown,  (-55) p long, 7-10 p t h i c k at base; a s c i  spores hyaline, one-celled, 2-guttulate to  pseudoseptate, b r o a d - e l l i p s o i d , obliquely u n i s e r i a t e , 6-8 x 3-4p»  On  bark o f Abies lasioearpa (Hooke) Nutt,, Cathedral Lakes (H-l911)•  Otthla Nitschke P e r i t h e c i a clustered, at f i r s t under the substrate and l a t e r becoming erumpent, globose or ovate, black, t h i c k , ooriaceous, smooth; a s c i c y l i n d r i c a l , stalked, paraphysate;  spores e l l i p s o i d , uniseptate, hyaline (sub-  genus Otthiella ) to brown© Otthla sp,  (Plate I I , fig•28)  P e r i t h e c i a cespitose, erumpent i n groups  through bark, black, coriaceous, globose, 250-450 p diameter, short p a p i l l a t e , c o l l a p s i n g to become oupulate; a s c i broadly c y l i n d r i c a l , abruptly tapered to a short s t a l k , thickened at the apex, four- to eight-spored, 90-150 x 15-21 p' p,araphyses numerous, branched; spores b i s e r i a t e , hyaline t  to o l i v e green and f i n a l l y l i g h t brown, uniseptate, constricted at the septum, granular, 21-36  x 9-14 pe  On branches of Populus tremuloides  Michx,, Noisy Creek, Ashnola D i s t r i c t (H-1860); Populus sp., Soda Creek, l e g . J.Bancroft (H-2336); Sambucua sp.,1 Soda Creek, l e g . J.Bancroft (H-2335). These three c o l l e c t i o n s are very s i m i l a r , although that on Populus sp. shows s l i g h t l y smaller a s c i and spores. of the described species.  They do not appear to f i t any  67*  13* Corynellaceae Mycelium endophytic, mostly p a r a s i t i c ; stromata erumpent, sharply demarcated, black, coriaceous to carbonaceous; lobes o f the stroma elongating v e r t i c a l l y into spermogonia or ascocarps; ascocarps g r e a t l y elongated into slender c y l i n d r i c a l columns; ascigerous locule varying from basal to a p i c a l ; apez rounded and undifferentiated, or d e f i n i t e l y and variously lobed, without true o s t i o l e , opening by a transverse or several r a d i a t i n g c l e f t s , or perforated and funnel-fora; a s c i ovate to clavate, thin-walled, evanescent, stalks long and d e l i c a t e , eight-spored; paraphyses lacking; spores crowded, inordinate, u n i c e l l u l a r , smooth or echinulate, brown to hyaline*  C a l i c i o p s l s Peck Stromata scattered to crowded; lobes becoming spermogonia and l a t e r ascocarps; swollen ascigerous locule from terminal to basal; a s c i ovoid to e l l i p s o i d , with a delicate stalk; spores e l l i p s o i d to globose or subfusiform, smooth, yellowish to blackish-brown. C. Pseudotsugae F i t z p *  (Plate I I , fig.29, Plate 71, fig.37)  locule subapioal, a s c i 14 x 7 u, spores e l l i p s o i d , 4 z 2 n* t a z l f o l l a (Lam.) B r i t t *  Ascigerous On Pseudotsuga  Type c o l l e c t e d at Daisy Lake, not seen ( F i t z p a t r i c k  1942: 496); from Lake Cowichan, l e g . R.E.Foster (U-119, 7-237, 7-235), Nakusp l e g . D.C.Buekland (U-22), Pemberton, l e g * S.C.Frost (7-4541), Sayward, l e g . W.A.Porter (H-1830, 0-21367, 7-2789).  14* Amph1sphaer1ace as P e r i t h e c i a without stroma, at f i r s t sunken i n the substrate, at maturity more or l e s s erumpent, but always with the bases p a r t i a l l y immersed* carbonaceous, smooth, occasionally hairy; o s t i o l e p a p i l l a t e ; a s c i clavate to  68. c y l i n d r i c a l ; paraphyses present; spores two- to several-celled, hyaline t o dark colored. Spores several-celled, hyaline to brown  Trematosphaeria Strickeria  Spores muriform, brown  S t r i c k e r i a Korber (Teiehospora Fckl.) P e r i t h e c i a scattered to gregarious, at f i r s t buried, l a t e r nearly s u p e r f i c i a l , spherical or ovoid, coriaceous o r carbonaceous, frequently  -J collapsing; o s t i o l e p a p i l l a t e or inconspicuous; a s c i c y l i n d r i c a l or clavatec y l i n d r i c a l , eight-spored, peraphysate; spores e l l i p s o i d , mur^iform, brown. Spores obliquely u n i s e r i a t e , 22-30 (-33) u long. Spores with one longitudinal septum, end c e l l s the same color as the r e s t o f the spore.*,,.  ,,......*»*.*..*...,.,S. obducens  Spores with one to two longitudinal septa, end e e l l s l i g h t e r i n color  .......,.,,.,.....,,S. Typhina  Spores crowded b i s e r i a t e , 30-36 x 10 j a , . . . . . . . . . . . . 8 . S. Amelanchieris Barle  Amelanchleris  (Plate I I , fig.30) P e r i t h e c i a scattered o r gregar*?  ious, black, smooth, c o l l a p s i n g , 300-500 p. diameter; a s c i c l a v a t e - e y l i n d r i c a l , 100-120 x 16-22 (-30) fx, eight-spored; paraphyses f i l i f o r m ; spores crowded-biseriate, ovoid-oblong, long hyaline, f i n a l l y brown, curved, 5-7-septate, with a p a r t i a l v e r t i c a l septum, somewhat flattened, (21-) 30-36 x 10-12 x 7 u.  On weathered wood of Amelanchier sp., Penticton  (H-1928). A s c i i n t h i s c o l l e c t i o n are considerably broader, otherwise as i n the species.  69.  S. obdueens (Fr.) Wint©  (Plate I I , fig.SL)  P e r i t h e c i a t h i c k l y scattered,  s u p e r f i c i a l , bases immersed, globose,papillate,  collapsing, 300-500 ja  diameter; a s c i long c y l i n d r i c a l , 130-150 (-185) z 15-22  u; paraphyses f i l i -  form; spores obliquely u n i s e r i a t e , f u s o i d - e l l i p s o i d , brown, 5-7-septate, constricted at the central septum, one.vertical septum i n a l l but c e l l s , 28-30 (-33)  z 9-12  (-14)  u*  end  On Acer sp., U.B.C. (H-1929); Alnus  oregona Nutt., l e g . S.Brown-John, U.B.C* (H-l910); A. sitehensia Sarg., l e g . D.C.Buckland (U-666); Artemisia  t r i d e n t a t a Nutt., Princeton  S t r i o k e r i a (Cucurbitaria) Typhina S l l # & Ev.  (Plate I I , fig.32)  (H-l909)©  This  species i s , according to Welch (1926: 73), a Strieker i a (Teiehospora)© P e r i t h e c i a subglobose, thick-walled,  immersed when very young and becoming  erumpent before maturity, basal portion remaining sunken; bases of p e r i thecia appear to have been formed above empty pyenidial c a v i t i e s which are shrunken and f l a t t e n e d by the growth of the p e r i t h e c i a ; a s c i c y l i n d r i c a l clavate, short-stalked, paraphysate, 120-150 z,15  (-18)  oblong-ellipsoid, 5-6-7-septate and mursiform with one  u; spores u n i s e r i a t e , or two  longitudinal  septa, s l i g h t l y constricted at the central septum, yellow-brown, end subhyaline, 22-30 z 12-15  u.  On Rhus glabra L., U.B.C. (H-l955).  cells  This  c o l l e c t i o n agrees with E l l i s and Everhart's description, which i s here emended to include mention of the s u p e r f i c i a l nature of the p e r i t h e c i a above the stromatic-appearing remains of pyenidial walls©  I f examination of the  type material shows the same condition, as Welch states, t h i s species  should  be transferred to S t r i e k e r i a as S. Typhina (Ell© & Ev.), since none o f the other species o f S t r i e k e r i a show that character as well as the l i g h t color of the end c e l l s of the spore3©  70« Trematoapnaeria Fcklo P e r i t h e c i a carbonaceous, s u p e r f i c i a l or s u b s u p e r f i c i a l , conical or globose; asci eight-spored, paraphysate; spores oblong or fusoid, threeto several-septate,  hyaline or brown,  * T . ? f i s s a (Fckl.) Wint,  (Plate I I , fig.33)  P e r i t h e c i a scattered or grouped,  mostly with basal h a l f immersed, l a t e r erumpent, 350-450 u wide, globose, p a p i l l a t e , black, somewhat rough; asci c y l i n d r i c a l o r clavate, eight-spored, 70-110 z 7-9 11;  stalked,  spores uniseriate, l o n g - e l l i p s o i d , brown,  four-celled, scarcely constricted, 12-16  z 4?5»5 L U  On Acer sp,,  U.B.C,  (H-1929); t h i s c o l l e c t i o n comes nearest to t h i s species, but spores are longer, 15-21  z 6-7,5  j i , and wood around the p e r i t h e c i a i s stained purple,  however i t does not have purple o s t i o l e s as i n T o phaea (Rehm) Wint*  15  0  Lophlostomataeeas  P e r i t h e c i a s i n g l e , occasionally grouped, without stroma, but sometimes on a blackened substrate, at f i r s t more or l e s s deeply Immersed i n the substrate and often at maturity with only the o s t i o l e erumpent, u s u a l l y however erumpent and almost completely s u p e r f i c i a l ; black, carbonaceous, smooth or somewhat hairy; o s t i o l e compressed^aore or l e s s drawn together and opening by a l o n g i t u d i n a l s l i t ; a s c i c y l i n d r i c a l or clavate, eight-spored; paraphyses present; spores long, pointed or rounded, with or without appendages, oneto several-celled or muriform or f i l i f o r m , hyaline or dark-colored*  Spores several-celled, hyaline  •Lophlotrema  Spores several-celled, brown,.  •Lophiostoma  71.  Lophiostoma  Pries  P e r i t h e c i a t y p i c a l , of varying s i z e s ; a s c i c y l i n d r i c a l - c l a v a t e , stalked; spores e l l i p s o i d to fusiform, with three or more cross-ii-lla, dark colored, ends rounded or with appendages at one or both ends. P e r i t h e c i a small, 250-300 p diameter; asci 90-105 u i n length... JL. caulium P e r i t h e c i a l a r g e r , 600-1000 /.diameter; a s c i 105-150 p ••••  i n length. .L. appendiculatum  L . appendicnlatum F o k l . (Plate I I , fig.34) P e r i t h e c i a innate, then erumpent, 600-1000 p diameter; o s t i o l e compressed; a s c i clavate, 105-150 z 12-17  p,  peraphysate, stalked; spores b i s e r i a t e above, u n i s e r i a t e below, e l l i p s o i d , straight or curved, (3-) 5-7-septate, constricted at the septa, with capl i k e appendages at both ends which soon disappear, yellow-brown, 7-9 u.  24-35 at  On Artemisia t r l d e n t a t a Nutt», dead weathered branches, Princeton  (H-1909).  Appendages are not v i s i b l e on amy mature spores but can be  f a i n t l y seen on the immature ones.  L . caulium (Er.) de Not. (Plate I I , fig.35, Plate VI, f i g . 38)  Perithecia  often covered by the epidermis, l a t e r erumpent, globose, o s t i o l e compressed, black, 250-300 p diameter; a s c i clavate, eight-spored, 90-105 z 10-14  p;  spores b i s e r i a t e , oblong-fusiform, without appendages* 4-8-celled, constricted at the cross-walls, yellow-brown, 20-30 z 5-8 p;  paraphyses f i l i f o r m .  Phloz speclosa Pursh., Penticton, l e g . J.W.Eastham (H-1902).  Lophiotrema Sacc. P e r i t h e c i a t y p i c a l ; spores oblong or fusiform, three- to s e v e r a l c e l l e d , blunt or with small appendages at both ends, hyaline, often becoming brown with age.  On  72* Spores 12-14 x 3-3*5 fx; o s t i o l e varying from compressed to conical or imperfectly t h r e e - c l e f t  .........  .  *Le aequivocum  Spores 20-26 (-35) z 5-8 jx; o s t i o l e c y l i n d r i c a l o r compressed*..»*L* nucula  L» aequivocum E l l * & Ev© (Plate I I , f i g * 36)  P e r i t h e c i a gregarious, erump-  ent, black, about 330 jx diameter; o s t i o l e subconical, s l i g h t l y compressed; asci s u b c y l i n d r i c a l , 80 (-108) z 5 (-10) jx; paraphyses f i l i f o r m ; spores yellowish-hyaline, u n i s e r i a t e , three-septate, 12-14 (-20) z 3-3.5 (-6) p.* The  species was described from a c o l l e c t i o n made by STohn Macoun "on de-  corticated wood o f some deciduous tree, B r i t i s h Columbia, May, 1887" ( E l l i s and Everhart 1887: 118)* The specimen examined, on dead wood, Comoz, Vancouver Island, May 3, 1887, l e g * Ja Macoun (OM-34), i s presumably cotype material* Spores are larger than i n description, 15-22*5 x 4*5-6 u, and many show hyaline appendages a t both ends*  L* Tnucula (Era)  Sacca  (Plate I I , fig.37)  Perithecia  innate-superficial,  ovoid, at f i r s t with a short, c y l i n d r i c a l o r compressed o s t i o l e , 300-500 u diameter; asci c y l i n d r i c a l - c l a v a t e , 90-125 x 10-12 n; spores b i s e r i a t e , oblong, three-septate, constricted at the middle septum, greenish-hyaline, 20-26 |-35) x 5-8 u*  Two c o l l e c t i o n s are placed doubtfully  as t h i s species;  i n both the o s t i o l e i s tpery short and the opening often i r r e g u l a r *  On dead  branches of ?Ghamaecyparis nootkatensis (Lam«), Spach© (H-1903) and Tsuga sp. (H-l901), Mount Seymour*  16* Myeosphaerellaceae P e r i t h e c i a mostly formed under the epidermis, remaining covered or becoming erumpent by disintegration o f the covering l a y e r , usually with only the p a p i l l a t e o r conical o s t i o l e protruding, globose, mostly very small,  73*  membranaceous or leathery, fragile; asci fasciculate, ovate, cylindrical, or clavate, eight- to many-spored; paraphyses lacking; spores various, one- to many-celled or muriform, hyaline or dark colored* Spores one-celled, hyaline* Perithecia seated on a subiculum of branched hyphae......... oAscosp_ora Such a subiculum lacking.  .Cuignardia  Spores more than one-celled, hyaline or dark. Spores two-celled* Spores hyaline. Asci  eight-spored............................oMycosphaerella  Asci many (16-24) spored.......................Rehmiellopsls Spores brown........  .Phaeosphaerella  Spores more than two-celled* Spores with transverse walls only*..  ..Sphaerulina  Spores muriform. Spores hyaline. Perithecia i n a light brown stroma, which forms spots or lesions..••  .Pseudoplea  Perithecia not in such a stroma.........Pleosphaerulina Spores brown.  ,..Leptoaphaerulina  Ascospora Pries Perithecia sunken in superficial layers of the substrate, seated on a growth of branched, thick brown hyphae, globose, black, smooth; asci ovate to obclavate, fasciculate, eight-spored, small; spores one-celled, hyaline, ellipsoid; paraphyses lading*  74. Spores l a r g e , 15-16 p long*.  .............  .....A. gramlnis  Spores smaller, 10-13 p long........  ...A.  A. gramlnis ff.Lind (Plate I I I , f i g . l )  Perithecia superficial,  on effused, branched mycelium, 80-100 p  Ruborum  applanate,  diameter; a s c i f a s c i c u l a t e , s e s s i l e ,  ovate-oblong, eight-spored, 24-42 x 12-£-7 u; spores e l l i p s o i d , hyaline, granular, i n e q u i l a t e r a l , 15-16  (-22)  x 4?-4.5 (-7.5) p»  Oh Ppa paucispicula  Scribn. &Merr., Summit between Francois and Ootsa Lakes, l e g . J.W.Iastham (H-2006); P. secunda P r e a l . , Ootsa Lake, l e g . J.W.Eastham (H-2005).  A. Ruborum (Oud.) Z e l l e r  P e r i t h e c i a at f i r s t subcuticular, then erumpent,  carbonaceous, a r i s i n g from a ramifying cushion of dark mycelium, 100-200u diameter; o s t i o l e small, c i r c u l a r to l e n t i c u l a r ; a s c i c y l i n d r i c a l , l a r g e r below, eight-spored, 40-55 x 9-12 hyaline, 10-13  x 4-5 p..  n; epores e l l i p s o i d , obtuse at both ends,  On Rubus sp., raspberry, not seen (CPDS 1939).  Guignardla T i a l a & Ravaz  (Laestadia  Awd.)  P e r i t h e c i a immersed, globose or somewhat f l a t t e n e d , black, membranaceous, smooth, o s t i o l e plane or short p a p i l l a t e to c o n i c a l , sometimes l a c k ing; a s c i clavate to elongate, eight-spored, aparaphysate; sporesaellipsoid or fusiform, hyaline,one-celled. A s c i l a r g e , (48-) 60-80 x 9-13 Spores granular, 12-17  u  e  x 4.5-5 /u...*  Spores smooth, 13.5-16.5 x 6.5-7p A s c i smaller, 30-45 (-54) On Gramineae* On other p l a n t s .  ...............G. B i d w e l l i i •  •*  ».G. V a o c i n i l  x 9-15p. .L. graminieola  75o On P o t e n t i l i a . . . . . . . . . . . . .  ...G. P o t e n t i l l a e  On other p l a n t s .  .L. e.reunitegens  G. B l d w e l l l i ( E l l . ) V i a l a & Ravaz.  P e r i t h e c i a minute, globose,  immersed,  f i n a l l y suberumpent; a s c i c l a v a t e - c y l i n d r i c a l , obtuse, 60-70 z 10-13 p., aparaphysate; spores e l l i p s o i d t o oblong, one-celled, hyaline, granular, 18-17  z 4.5-5jio  On V l t i s sp., grape, not seen (CPDS 1935,  Laestadia ?circ_.tegens Rostr.  (Plate I I I , fig.2)  1946).  P e r i t h e c i a gregarious*  l e n t i c u l a r , 60-135 u diameter; a s c i c y l i n d r i c a l - c l a v a t e , curved, aparaphysate, s e s s i l e , 30-45 (-54) z 9-12 (-15) ^a; spores one-celled, f u s o i d oblong, guttulate, hyaline, (7.5-) 10-15 z 3-5 p»  Several c o l l e c t i o n s  appear to belong t o t h i s species: on Campanula TMedia L*, Duncan (H-1996); Dlanthus sp., U.B.C. (E«*1997); Brigeron l i n e a r i s (Hook.) P i p e r , T r a n q u i l l e , l e g . T.M.C.Taylor (H-1990); I r i s germanica L.,  Duncan (H-1993); Lupinus sp.,  U.B.C. (H-1995); Oenothera biennis L., U.B.C. (H-1992), Duncan (H-1994).  Laestadia graminicola Rostr. (Plate I I I , fig.3)  P e r i t h e c i a minute, abundant,  gregarious, arranged i n p a r a l l e l l i n e s under the epidermis, globose, 60105 p. diameter; a s c i f a s c i c u l a t e , oblong-clavate, aparaphysate, s e s s i l e , 30-45 (-54) z (10-) 12-14 p \  spores fusoid-oblong, hyaline to greenish,  one-celled, 12-15 (-17) z 4-5p»  On Agrostis hlemalis (Salt.) B.S.P. v a r .  geminate (Trin.) H i t c h c , Vanderhoof, l e g . J.W.Eastham (H-1991); P u c c i n e l l l a Hut t a l l iana (Schult.) H i t c h c , Doyle, l e g . J.W.Eastham (H-2004)©  G. P o t e n t i l l a o (Rostr.) Lindau  (Plate I I I , fig.4)  P e r i t h e c i a black,  membranaceous, erumpent, globose-lenticular, 150 p. diameter; asci c y l i n d r i c a l - c l a v a t e , curved, 30-45 (-54) z 8-12 (-15) yu; spores hyaline to greenish, one-celled, b i s e r i a t e , fusoid-oblong, 9-12 (-15) z 3-5  (-6)^1.  76o On Potent i l i a d i v e r s i f o l i a Lehm. Kennoo Mining Camp, lege G .A.Noel (H-2003)© t  G. ?Vaeelnil Shear  (Plate III, f i g . 5 )  P e r i t h e c i a mostly hypophyllous,  globose, 165-210 u diameter, immersed, short o s t i o l e erumpent; a s c i c l a v a t e c y l i n d r i c a l , short stalked, aparaphysate (48-) 60-80 x 9-13 (-18) n; spores hyaline, one-celled, e l l i p t i c a l 13-16o5 x 4-7 u©  to subrhomboid, somewhat i n e q u i l a t e r a l ,  A c o l l e c t i o n on Arctostaphylos Columbians piper, Duncan  (H-2000), f i t s t h i s specieSo  Leptosphaerulina McAlpine P e r i t h e c i a immersed, globose to flattened; a s c i aparaphysate, eightspored; spores oblong, several-septate and muriform, brown© Leptosphaerulina sp© ^ P l a t e I I I , fig©6)  P e r i t h e c i a black, crowded and  bursting through the epidermis i n small groups, or s i n g l e , membranaceous, globose, 120-210jx diameter; a s c i f a s c i c u l a t e , clavate, attenuated to the base, thickened at the apex, eight-spored, 52-60 x 18-24 u; paraphyses lacking; spores yellow-brown, oblong-ellipsoid, ends rounded, 3-4-septate, constricted at the central septum, upper h a l f broader, narrowed below, one l o n g i t u d i n a l septum through most o f the c e l l s , i r r e g u l a r i n the ascus, 18-21 x 9-10 u©  On Sequoia sempervlrens End!©, U.B.C© (H-2533)©  This  c o l l e c t i o n f i t s the genus w e l l , but does not belong to any of the species described i n i t .  Mycosphaerella Johans.  (Sphaerella Ces. & de Not., non Sommerf©)  P e r i t h e c i a immersed, remaining covered or becoming erumpent, o s t i o l e plane or p a p i l l a t e , membranaceous to coriaceous, globose t o c o n i c a l , s m a l l j asci eight-spored, f a s c i c u l a t e , c y l i n d r i c a l , clavate, oblong, ovate, or  77© obovate; spores hyaline or greenish, ellipsoid, two-celled; paraphyses lacking* •  On Fter idophy tes  . . . . o . . . . . . . . . .Me indistinct a  On Spermatophytes. On Monocotyledons* Spores small, 9-10*5 u long.......  ..........M* graminicola  Spores larger. Spores narrow, 2*5-4 jx wide* Peritheeia 120-160 jx diameter; asci oblong©............ •  ©Mo eariclcola  Perithecia less than lOOp diameter; asci ovate to obclavate© On Typha  •  ...M© Typhae  On other plants© Asci 22-30 x 10-15 u© Spores 15-18 z 2.5-5 u. . . ..*M© perexlgua Spores 8-12 (-15) z 5-4 u.>M. Wichurlana Asci 30-40 z 10-15 u*.............«M© puailla Spores over 4 u wide© Perithecia in long rows i n the leaf........M. llneolata Perithecia scattered or gregarious, not in definite rows...  ..M. Tassiana  On Dicotyledons© On leaves of trees and shrubs© Spores over 20jx long© Spores broad, 6-7.5 u wide©©»•••  ©M. Auerswaldil  78©  Spores narrower, not over 5 u wide* Spores 26-35 u long*............... a...»M» Grossulariae Spores (17-) 20-25 (-28) jx long....  *M*_jrubi  >  Spores l e s s than 20 u long* P e r i t h e c i a clustered on conspicuous spots on the evergreen leaves....  ...............  >M* a r b u t i c o l a  P e r i t h e c i a scattered or gregarious but not on conspicuous spots. Spores 13-18 u long* On Rosa...•..•••«••••...••«.•.....*•o.»M* r o s i c o l a On P o p u l u s . . . . . . . . . . . . . . . . . . . . . . . . . . M * p o p u l i f o l i a Spores shorter, 6-10 (-13*5) u long* On P o p u l u s * . . . . . . . . . . o . . . . . . . . . . . . . i » M *  orbicularis  On other leaves* On P r u n u s * . . . . . . . . . . . . . . . . . . . . . M .  elnerascens  On other leaves.............. .Mo punctiform i s Not on leaves o f trees and shrubs. On l i v i n g leaves, on spots* Spores small, 7-8 x 2-2.5 n  »M. Ghimaphilas  Spores l a r g e r , 12-20 x 4-5ya. On Pachystlma  >»M. Pachystlmae  On Rumex......  .M« strcmatoidea  On dead leaves or s t a l k s . A s c i oblong-cylindrical, not over 12 u wide* Spores 7-8 u long* Asci 27-30 x 6 - 7 . 5 j x » . . . . . . . . . . . . . . . . « . . M *  earliana  A s c i 34-42 x 7.5 i i o . . . . . . . . . . . . . . . . » . M . m i c r o s p i l a  79. Spores mostly over 11 jx long* A s c i 9-12 jx wide. A s c i 36-45 x 9-11 ya.o *»»*.«***** *•' .M* c o n f i n i s «M* pinodes  A s c i 58-62 x 12 A s c i 7-9 jx wide* Spores 4-7 u wide**  ».»»».*•** • *M» vagans  Spores up t o 3*5 jx wide* On Fr agar l a and Po tent i l i a . *M* Eragariae On other plants..... . . . . . . . . . M * punctiformla Tar* Clematidls A s c i ovate* obovate or obdavate* Spores l a r g e , 25-40 jx long* On R a n u n c u l u s * . . . . . . . . . . . . o • * M » On other plants***..........»....«.M*  Ranunouli  dolichospora  Spores smaller, not over 30jx long* Spores not longer than 14 jx* P e r i t h e c i a seated on t h i n brown r a d i a t i n g mycelium**• * « * e o * * * * * . . . . . . * » * . * * • • »*M* Minor P e r i t h e c i a not seated on mycelium* On Umbelli te rae * * * • . . . . . . *M» sage dioUdes On other plants* * * * * . * . . . . . . . . . M c melaena Spores mostly longer than 14jx. On Polygonaceae ............. .<> *M. Polygonorum On other plants* On Craciferae...........«M» b r a s s l c i c o l a On other plants* On Slbbaldia, p e r i t h e c i a l e s s than 75 ^ i diameter*.......M* innumerella  60. On other plants, p e r i t h e c i a mostly more than 75 jx diameter» Spores broad, 7-9 p wide; on E r i g e r o n and  Artemisia^N....  »»  t  «Me e r i o p h i l a  Spores generally narrower, 3©5-8*5 a wide; on many plants»oo«.....o..»oM.  Mo a r b u t i c o l a (Pk.) House  (Plate I I I , fig*7)  Tassiana  P e r i t h e c i a on greyish spots  with a red border, epiphylloua, black, small, 100-135p diameter; a s c i oblong, f a s c i c u l a t e , 5S-60 x 9-1.1 tt; spores crowded b i s e r i a t e , hyaline, uniseptate, 18-15  x 3 p»  On Arbutus Menziesil Pur she, Saanich, lege  Jones (H-*771, H-2101, CPUS 1931, 1934,  M« ?Auerswaldil (Flelschhe) Migula  Wo  1937)«  (Plate I I I , fig.8)  P e r i t h e c i a hypo-  phyllous, immersed, gregarious, globose-conical, black, 100-200 p  diam-  eter; asci obclavate, very short stalked, 45-75 x 10-23 p; spores i r r e g u l a r l y b i s e r i a t e , e l l i p s o i d , narrowed towards the lower end,  uniseptate,  hyaline to greenish* with two or three oil-drops i n each c e l l , 22-30 x 4-7.5^1©  On CornuB N u t t a l l i i Audo, Duncan (H-2286)»  This c o l l e c t i o n  has broader a s c i and spores than the species description but otherwise f i t s wello  M> brass!cieola (Duby) Lindau  (Plate I I I , figo9)  P e r i t h e c i a numerous  on spots on the leaves, amphigenous, globose to lens-shaped, 60-90 p diameter, brown-black, o s t i o l e short p a p i l l a t e , erumpent; a s c i narrowed towards each end, 36-51  x 10-15  broad-fusoid,  u; spores b i - to t r i s e r i a t e .  81.  oblong, uniseptate, s l i g h t l y curved, scarcely constricted, 15-21 4.5  greenish.  On Braasica oleracea L . T a r . b o t r y t i s L«,  x 3-  Saanichton,  l e g . W.Jones (H-775)| var. c a p i t a t a L», Dewdney, l e g . W.Jones (H-773,, CPDS 1943,  1945); var. gammlfera Zenker, Sidney, l e g . W.Jones (H-774);  var. i t a l i c a Plenehk., N.Saanich, l e g . W.Jones ;(fr-772)_  M. c a r l c i c o l a (Fckl.) Lindau  (Plate I I I , fig.10)  P e r i t h e c i a immersed-  erumpent, globose, 100-160 p. diameter, black, o s t i o l e short, punctifozm; a s c i oblong, s e s s i l e , 39-51  x 9-12  u; spores crowded b i s e r i a t e , hyaline  to greenish, uniseptate, oblong, straight or curved, 10-15  x 3-5 p*  Cn  Carex pyrenaica Wahl., Mt.Brent, Penticton* l e g . J.W.Eastham (H-2056); Junous Drummondii Meyer, Mt.Apex, Penticton, l e g . J.W.Eastham (H-1989).  Sphaerella Ohimaphilae BU.&  Ev*  (Plate I I I , f i g . l l )  P e r i t h e c i a on spots  on l i v i n g leaves, spots dark with a l i g h t e r centre, amphigenous, erumpent, globose, 75-UO/i diameter, black, membranaceous; a s c i obilavate-oblong, s e s s i l e , 30-45 x 6-10 p;  spores crowded b i s e r i a t e , oblong-fusoid, u n i -  septate, not constricted, 7-14  (-15)  x 2-3 p»  On Chlmaphila  umbellata  (L.) Nutt., Armstrong, l e g . E.Wilson (H-2127).  M. cinerascens (Fckl.) Migula  (Plate I I I , fig.12)  P e r i t h e c i a amphigenous,  gregarious i n small c l u s t e r s or scattered, grey-black, globose-conical, erumpent, 90-105p diameter; a s c i oblong, nearly s e s s i l e , f a s c i c u l a t e , 30-45 x 6-9 p;  spores long ovate, uniseptate, b i s e r i a t e , p a r t i a l l y u n i -  seriate above, hyaline to greenish, 6-10  x 2-3 p*  On Prunus emarginata  (Dougl.) Walp. var. m o l l i s (Dougl.) Brewer, U.B.C. (H-2287).  M. coerulea ( E l l . & Bv.) Tracy & E a r l e  (Plate I I I , fig.13)  Perithecia  82. sparsely t o t h i c k l y scattered, immersed, erumpent by a minute o s t i o l e , black, globose to somewhat flattened, 100-150 p. diameter; a s c i oblong, f a s c i c u l a t e , 35-51 x  7-14ya;  spores b i s e r i a t e , f u a o i d - e l l i p s o i d , u n i -  septate, hyaline, s l i g h t l y c o n s t r i c t e d at the septum, 12.5-18 x 3-3.5 /i« On Aqullegia b r e v i s t y l a , Chilko River, l e g . W.A.Newcombe (H-2863), A. formosa Flach., Tenqmille Lake, Pemberton, l e g . W.Taylor (H-2261), Revelstoke, l e g . J.Buckland (H-2262).  Me conf i n i s (Kerst.) J.Lind  (Plate H I , fig|14)  P e r i t h e c i a black,  membranaceous, amphigenous, immersed, then erumpent, scattered o r gregarious, globose, p a p i l l a t e , black, 90-120 /1 diameter; a s c i oblong, subs e s s i l e , f a s c i c u l a t e , 36-52 x 9-13 jx\ spores crowded b i s e r i a t e , greenishhyaline, elongated, uniseptate, not constricted at the septum, 14-19 x 3-5yu. On Braba a l p i n a L., Moose Mt.., F e l l y Creek, l e g . G.V.Copley (H-2138)•  M. dolichospora (Sacc. & Fautre) Wehm.  (Plate I I I , fig.15)  Perithecia  gregarious, globose-conical, p a p i l l a t e , 60-200 p. diameter, erumpent; a s c i stout clavate, a p i c a l wall thickened, 45-70 x 10-18 (-23) u; spores f a s ciculate i n the ascus, f u s o i d - c y l i n d r i c a l , straight o r curved, uniseptate, hyaline, s l i g h t l y constricted at the septum, (22-) 25-40 x 2.5-5 ji« On Arenaria obtusiloba (Rydb.) Fern., Cathedral Lakes (H-2067).  Sphaerella e a r l i a n a Wint.  (Plate I I I , fig.16)  P e r i t h e c i a amphigenous,  crowded, globose to c o n i c a l , black, 45-75/1 diameter, erumpent; a s c i f a s c i c u l a t e , oblong, short stalked, 26-30 x 6-7.5 jx\ spores crowded, clavate, uniseptate, not constricted at the septum, hyaline, 7-8 x l«5-3y_© On Fragarla chiloensis (L.) Duch., Glacier Point, Jordan River, l e g . J.W. Bastham (H-2126)©  83. Mo s r i o p h i l a (Niessl) Dear*  (Plate I I I , fig*17)  P e r i t h e c i a scattered,  erumpent, globose, p a p i l l a t e , 90-210^1 diameter; coriaceous; asci obclavate, straight or curved, short stalked or s e s s i l e , 45-96 x 24-33 (-45)  n  spores greenish, uniseptate, biseriate-crowded, narrowing to the lower end, guttulate, cU)long-cuneate, 20-36 x 7-9 u» "On Artemisia longepedunculata fiydbo, Mt« Baldy, Chua Chua, l e g . V.C.Brink (H-2306); Brigeron sp*, Cathedral Lakes (H-2274, H-2270).  M. Fragariae (Tul.) Lindau  (Plate I I I , fig.18)  P e r i t h e c i a amphigenous,  mostly hypophyllous, gregarious, immersed, becoming erumpent, globosedepressed, 35-120 ji diameter; a s c i oblong, f a s c i c u l a t e , nearly s e s s i l e , 33-50 x 5-9 u; spores crowded b i s e r i a t e , fusoid, uniseptate, s t r a i g h t or curved, hyaline to greenish, 9-15  x 2-3.5 p.* On Pragarla C h i l e a n s i s (L.)  Duch., (CPDS 1926, .1933, 1934, 1937, 1939, 1940); P o t e n t i l l a p a l u s t r i s (L.) Scop., Stanley Park, Vancouver (H-1974).  Ma graminleola (Fckl.) Sehroete  (Plate I I I * figol9)  P e r i t h e c i a epiphyllous  gregarious, ismersedrerumpent, black, globose,small, 80-100 u o s t i o l e p a p i l l a t e ; a s c i oblong or ovate-oblong,  diameter,  s e s s i l e , 22-27 x 9-12  n;  spores oblong, uniseptate, hyaline to greenish, crowded, 9-10*5 x 2-3 u« On D l s t i c h l i s spieata (L.) Greene, Lac l a Hache, l e g . G.A.Hardy (B>2187); var. s t r i a t a (Gray) Beetle, F l y i n g U Ranch, Cariboo, l e g . J.W.Eastham (H-2186) *  M. Grossulariae (Fr«) Lindau  P e r i t h e c i a hypophyllous,  innate, gregarious,  globose, minutely perforated, blaek, 155ftu diameter; a s c i short stalked, or subsessile, clavate, 55-66 x  8-12yu; spores t r i s e r i a t e , fusoid-elongate,  s l i g h t l y curved, uniseptate, not constricted, hyaline, 26-35 x  3-4yu  On  84*  Ribes spp*. currant and gooseberry, not seen (CPDS 1986).  M« i n d i s t i n c t a (Pk.) Lindau  (Plate I I I , f i g , 20)  P e r i t h e c i a innate,  becoming erumpent, scattered o r subgregarious, epiphyilous, globose,black* 50-70 ^ i diameter; asci clavate, short stalked, f a s c i c u l a t e , 48-58 z 9-12 u; spores crowded, hyaline to greenish- fusoid-elongate, straight o r curved, obscurely septate, guttulate, 33-38 z 6 p.o Kuhn., Saanichton  On Pteridium aquilinum (L.)  (H-2996), Mount Seymour (H-2Q94)*  Sphaerella lnnumerella Karat*  (Plate I I I , fig*21)  P e r i t h e c i a hypophylloua,  gregarious, erumpent, globose, p a p i l l a t e , membranaceous, black, 45-100 diameter; a s c i c l a v a t e - c y l i n d r i c a l , very short stalked, 42-60 z 8-12 jx\ spores imperfectly b i s e r i a t e , usually s i x i n an ascus, oblong, uniseptate, not constricted, hyaline to greenish, 13-24 x 3-5 JU*  On S i b b a l d i a p r o -  cumbens L«, Cathedral Lakes (H-2144)*  M. l i n e o l a t a (Rob* & Desm*) Schroet,  (Plate I I I , fig*22) P e r i t h e c i a  amphigenous, immersed, seriate i n rows, globose, somewhat erumpent, black, 5 4 - 7 0 d i a m e t e r ; a s c i obovate or oblong-clagate, s e s s i l e , 30-50 z 12-16*5 j i ; spores crowded b i s e r i a t e , greenish-hyaline, oblong, curved, uniseptate, 15-18 z 3-5  On Carer ilmoaa L*, Tetana River, l e g * Mrs* Fletcher (H-2204)*  Sphaerella melaena (Fr») Sacc*  (Plate I I I , fig,23)  P e r i t h e c i a black,  densely crowded,ostiole plane, globose, 45-80 jx diameter; a s c i obovate* s e s s i l e , 18-27 z 10-15 jx; spores crowded,obovate-oblong, uniseptate below the middle, not constricted, hyaline to greenish or yellow, 7-13*5 z 3-4*5 jx* On Rubus par v i f l o r a s Nutt*, U.B.C, (H-1973); Rumez A c e t o s e l l a L*, Lumby, (H-2311); Spiraea l u c i d a Dougl,, Vernon (H-2309, Kersley, l e g * G.E.Woolliams (H-1607)*  85©  SphaereUa m i c r o s p l l a (B. 8s Br„) Cke,  (Plate I I I , fig© 24) P e r i t h e c i a  scattered* globose, black, f r a g i l e , erumpent, 80-90 u diameter; a s c i oblong, f a s c i c u l a t e , s e s s i l e , 34-42 x 7©5 n; spores o b l o n g - e l l i p s o i d , uniseptate* h y a l i n e , 7 5-11 x 3 p.» 0  On Bpilobium angustifolium L©, U.B.C©  (H-2093) •  M» minor (Karst) Lindau  (Plate I I I , fig.25)  P e r i t h e c i a innate, joined by  subradiate, creeping brown mycelium, black, membranaceous* o s t i o l e plane, 30-70 ji diameter; a s c i obovate, s e s s i l e , f a s c i c u l a t e , 18-25 x 12-14 n; spores conglobate, ovoid-oblong, uniseptate* s l i g h t l y constricted, hyaline to  greenish, 8-12 x 3-4 u©. On Epilobium angustifolium L«, Vernon (H-2164)G>  M© o r b i c u l a r i s (Pk©), House  (Plate I I I , fig©26)  P e r i t h e c i a innate, black,  membranaceous, amphigenous, globosej 100-120 u diameter; a s c i oblong, s e s s i l e , f a s c i c u l a t e , 36-54 x 7*5-9 u ; spores oblong* uniseptate, greenish, flattened on one side or s l i g h t l y curved, b i s e r i a t e , guttulate, 10-13©5 x 2-3 u©  On Populus tremuloides Michx©, Saanichton  M© Pachystlmae Dear©  (Plate I I I , fig©27)  (H-2012)©  P e r i t h e c i a on pjale grey o r whitish  spots, e p i p h y l l o U B , black, innate, globose;, 125-200 x 85-100 u ; some with r a d i a t i n g mycelium and a few s t i f f bristle_js near the apex; asci oblong, short stalked, (37-) 45-78 x 8-12 u; spores crowded b i s e r i a t e , hyaline t o greenish, uniseptate, somewhat c o n s t r i c t e d , often with-two oil-drops i n each c e l l , 10-20 x 3-5 u©  On l i v i n g leaves of Pachystima myrslnites Raf©  f  Hope (H-2115); t h i s c o l l e c t i o n has smaller a s c i and spores than the species and may be a small form©  86o Mo perexigua (Karst.) Johans.  (Plate I I I , fig.28)  P e r i t h e c i a black,  membranaceous,, s l i g h t l y erumpent, hypophyllous, smell, globose, 60-75 u diameter; a s c i obovate, unequal sided, s e s s i l e , f a s c i c u l a t e , 22-30 x 10-15 j i ; spores greenish, f a s c i c u l a t e i n the ascus, uniseptate, not constricted, fusoid-oblong, 15-18 x 2©5-3 n«  On iiarex diandra Schrank.,  Vanderhoof, lego J.W.Eastham (H-2089)o  Mo pinodes (B. & Blox.) B.E.Stone©  P e r i t h e c i a depressed, numerous, 100-  140 ja diameter; a s c i o b l o n g - c y l i n d r i c a l , 58-62 x 12 u; spores b i s e r i a t e , oblong, uniseptate, hyaline, 14-16 x 5ya©  On Pisum sativum L©, fiot seen  (CPDS 1925) o  M« Polygonorum (Crie) JJLind  (Plate I I I ,  fig.29) P e r i t h e c i a epiphyllous,  on spots surrounded by a prominent, dark red border, black, membranaceous, globose-conical, 120-150  diameter, erumpent, p a p i l l a t e ; a s c i obclavate-  oblong, s e s s i l e , f a s c i c u l a t e , 30-36 x 15-17 u; spores greenish, e l l i p s o i d , ends obtuse, uniseptate, not constricted, crowded, 12-18 x «.5-6 u©  On  Brlogonum heracleoides Nutt., Ashnola T r a i l (H-2143).  Mo p o p u l i f o l i a (Cke.) House  (Plate I I I , fig©30)  P e r i t h e c i a mostly hypo-  phyllous, Innate-prominent, punctiform, globose, black, gregarious, membranaceous, 120-200 u diameter; a s c i c y l i n d r i c a l - c l a v a t e , f a s c i c u l a t e , s e s s i l e or short stalked, 42-75 x 7.5-15 u; spores sublanceolate, u n i septate, hyaline (to greenish, not constricted, straight or s l i g h t l y curved, 15-18  (-27) x 3-4.5 yi©  On Populus deltoldes Marsh., l e g . and det© J.E.Bier  (H-2142, V-881); P. trlchocarpa T.& G©, Vernon (H-2283).  t  87.  Mo punctlformls (Pers.) Schroet*  (Plate I I I , fig.31)  P e r i t h e c i a innate-  punctiform, smooth, subshining, black, prominent, perforated above, 60120 yu diameter; a s c i oblong, subsessile, attenuated below, 27-45 z 6o5-9 u; spores b i s e r i a t e or obliquely u n i s e r i a t e , obovate-oblong, uniseptate,'cons t r i c t e d at the septum, hyaline t o greenish, upper c e l l broader, 6-12 z 2-4 u..  On Acer maorophyllnm Pursfa., U.B.C. (H-1958, H-1954), S l i v e r Creek  (H-1946); Alnus oregona Nutt,, U.B.C. (H-1959).  M. punctifoimiB (Pers*) Schroeto varo Clematldis Jaap  (Plate I I I , fig.32)  P e r i t h e c i a globose, 100-125 u diameter, t h i c k l y scattered, o s t i o l e stout p a p i l l a t e ; a s c i clavate, f a s c i c u l a t e , 25-43 z 7-10yu; spores b i s e r i a t e , f u s o i d - e l l i p s o i d , one end sometimes more rounded, uniseptate, hyaline, scarcely constricted, 8-16 z 2-3.5 u*  On Arabis h i r s u t a (L.) Scop., var*  glabrata, Crawford Bay, l e g . H.Murray (H-2320); Arenarla c a p i l l a x i s , v a r . n a r d i f o l i a , Fish Lake, l e g . J.B.Anderson (H-2303); Cirsium lanceolatum (L.) Scop*, Vancouver Island, l e g . J.Macoun (OM-926); CirsAum sp*, (H-1969, H-2516); Brigeron sp., Saanichton Hudson Bay Mt.,  Saanichton  (H-2315); Heuchera glabra Willdo,  Smithers, leg© J.W.Eastham (H-1880); Senecio  paupercuius  Michx., Golden, l e g . J.W.Eastham (H-2299)«  Sphaerella p u s i l l a Awd©  (Plate I I I , figo33)  P e r i t h e c i a epiphyllous,  immersed, globose, 60-75 u diameter, o s t i o l e plane; asci  ovate-oblong,  s e s s i l e , f a s c i c u l a t e , 30-40 z 10-15 u; spores crowded, oblong-fusoid, greenish-hyaline, uniseptate, s l i g h t l y c o n s t r i c t e d at the septum, with three or four o i l - d r o p s , (16^)22-24 z 3-4 u. Lake,.leg. W.M. Canby (H-2308).  On Carez f l a v a L», Shawnigan  88.  M. Ranunculi  (Karst.) J.L ind  (Plate I I I , fig.34)  P e r i t h e c i a black,  coriaceous-membranaceous, single o r grouped, erumpent, conical-globose, short p a p i l l a t e , 1 £0-200/i diameter; a s e i obclavate, very short stalked, i n e q u i l a t e r a l , f a s c i c u l a t e , 84-99 x 21-24 u; spores greenish, elongatefusoid, uniseptate, scarcely c o n s t r i c t e d at the septum, b i s e r i a t e , crowded below, 27-33 x 6-7.5 ji*  On Banunculus B s c h s c h o l t z i l Schlecht, G a r i b a l d i ,  l e g . J.Davidson (H-2293).  M. r o s l c o l a (Pass.) Davis.  P e r i t h e c i a amphigenous, erumpent, black,  single, 65-105 jx diameter; asci s e s s i l e , clavate, walls s l i g h t l y thickened toward the apex, 36-57 x 9-11 ji; spores b i s e r i a t e or subbiseriate, unequally two-celled with the smaller c e l l toward the apex o f the ascus, not cons t r i c t e d , s l i g h t l y curved on one side, f l a t t e n e d on the other, rounded on the ends, olivaceous, 13-17 x 4-5.3  On Rosa c e n t i f o l i a L . var© muscosa  Ser., P a t r i c i a Bay, not seen (CPDS 1942)©  M. rubl Roark.  P e r i t h e c i a mainly hypophyllous, usually gregarious, erum-  pent, globose, 60-80/1 diameter, o s t i o l e short p a p i l l a t e , black; a s c i sub clavate to c y l i n d r i c a l , very short stalked, 42-45 x 8-10 ji;  ascospores  hyaline, slender fusiform, uniseptate, straight o r s l i g h t l y curved, very s l i g h t l y c o n s t r i c t e d , (17-) 20-25 (-28) x 3.5-4.25 u, u s u a l l y i r r e g u l a r l y biseriate.  The c o n i d i a l stage, Septorla Rubl West, i s o f common occur-  rence , but the p e r i t h e c i a l stage has not been c o l l e c t e d . Blackberry, boysenberry, raspberry, youngberry (CPDS 1931,  On Rubus spp., 1932, 1933,  1934, 1937, 1940, 1948).  M. sagedioides (Winte) Lindau  (Plate I I I , fig.35)  P e r i t h e c i a i n groups,  89.  immersed, then erumpent, globose, membranaceous, black, 65-110 jx diameter; asci oblong-obclavate, s e s s i l e , 30-35 z 9-14 p.; spores crowded, hyaline to greenish, oblong-clavate, often unequal sided, both ends blunt, u n i septate, lower c e l l narrower, with four o i l - d r o p s , 10-14 z 3o5-4.5 0 1 1  Douglaaii Lo,  Mo atromatoldea Dear*  Saanichton (E-2318).  (Plate I I I , f i g . 36)  P e r i t h e c i a grouped on  numerous,  scattered, small, c i r c u l a r , dark-bordered spots which are surrounded by a diffuse red band; innate, crowded a t the middle of the spot, subglobose, epiphyllous, 85-180 jx diameter; a s c i aparaphysate, f a s c i c u l a t e , oblongclavate, Gften curved> with a short foot, 45-70 z 12-15 j i ; spores b i s e r i a t e , hyaline to yellowish, uniseptate, scarcely constricted, upper c e l l wider and l a r g e r , suboblong, 12-18  (-20) z 5-7  (-9) ya.  Most of the  c o l l e c t i o n s noted here show asei and spores somewhat l a r g e r than i n Dearness* description, but otherwise f i t well*  On l i v i n g leaves o f  Rumez o b t u s i f o l i u s L., Lake o f the Woods, Hope (H-2108), Cowichan Bay (H-2147); R. occidentalis Wats*, Agassiz, l e g . H.H.Ross (H-2103); Rumez sp., Abbotsford, l e g . B.Lawson (H-2102), Langlie P r a i r i e , l e g . B.Lawson  Mo Tasaiana (de Hot*) Johans*  (Mo pachyasca (Rostr.) Testerg*)  f i g s . 37 , 38, Plate 71, fig*39).*  (H-2100).  (Plate I I I ,  P e r i t h e c i a small, 70-150 (-200) p. diameter,  globose, becoming pyriform, o s t i o l e c o n i c a l , stout, widely scattered, densely crowded or confluent, immersed becoming erumpent; asci aparaphysate, broadly saccate below, constricted i n t o a narrower c y l i n d r i c a l t i p with a much thickened w a l l , often stretching at maturity t o become clavate or c y l i n d r i c a l , 27-97 z 12-27  (-30) U|, f a s c i c u l a t e ; spores narrow-fusoid becoming  broader clavate or wedge-shaped, uniseptate, s l i g h t l y or not constricted*:  90* upper c e l l broader and rounded, lower c e l l narrower and tapered, hyaline to greenish, often with two guttules i n each c e l l , 14-28,5 (-30) z 3©58.5  (-9)  This i s a c o l l e c t i v e species with many synonyms, reported on  many hosts under many binomials©  I t i s the most wide-spread species i n  B r i t i s h Columbia, found on stems from nearly every c o l l e c t i o n , and very common on a r c t i c - a l p i n e collections©  Following the usage of L i n d (1929)  and Wehmeyer (1946) t h i s name i s used t o include a l l c o l l e c t i o n s showing the  t y p i c a l ascus shape and within the size ranges given aboweo  On  A c h i l l e a bore a l l s Bong,, Cathedral Lakes (H-2277)} A, M i l l e f o l i u m L,, Lake o f the Woods, Hope (H-2284)j Agoseris graoilens (Gray) Greene, Cathedral Lakes (H-2159); Agropyron latiglume (Seribn, & Sm,) Rydb,, Wall Lake, l e g , T.M.C.Taylor (H-2193); A, spioatum (Fursh,) Rydb.,Fairmont Hot Springs, leg© J.W.Eastham (H-2060); Agrostis hiemalls (Walt©) B.S.P,, Goldstream Lake, leg© I,McT»Gowau (H-2139J; A, s t o l o n i f e r a L,, Cathedral Lakes (H-2151* H-2160); A l l i u m Cepa Lo, Duncan (H-2256), A© oernuum Roth©, Grand Forks, l e g , G.E.Woolliams and J.W.Eastham (H*»1664), C h i l c o t i n , leg© E.W.Tisdele (H-2248); A. Sehoenoprasum L . var© sibiricum (L.) Hartm©, Klnbasket, B i g Bend Highway, l e g , J.W.Eastham (H-2247), Nakusp, leg© J.W.Eastham (H-2246); Auaphalis margaritacea (L.) B.& H«, Mt© Caven, F l a g stone, leg© F.B.Peterson (H-2303); Andropogon aooparius Michz©., Fainaont Hot Springs, l e g ,  J.W.Eastham (H-2267); Anemone Drummondli Wats©, Cathedral  Lakes (H-2158); A, globosa Nutt©, between Redstone and Chelquoit Lake, l e g . J.W.Eastham (H-2128),} Ao m u l t i f i d a a f f i n i s hudsoniana, Bennett, leg© B.Boivin (H-2129); Antennarla media Greene, Cathedral Lakes (H-2290); A» rosea Greene;, St .Mary's Lake, Kimberley, leg© J.W.Eastham (H-2014); Aplopappus Brandsge1 Gray, Cathedral Lakes (H-1957); A q u i l e g i a b r e v i s t y l a Chilcko River, leg© WA.Newcombe (H-2863); A© foimosa Fisch©,  Duncan (H-2182);  91. Arabia caneacens Nutt.. Summerland* l e g .  G.E.Woolliams (H-l683); A* Drum*  mondii Gray, Mt. Apex, Penticton, l e g . J.W.Eastham (H-2055); A. hirauta (L.)  Scop, var* glabrata, Crawford Bay, l e g . H*Murray (H-2320), A* L y a l l i l  S.Wats., Cathedral Lakes (H-2154)j Acetagrostis l a t i f o l i a , ( R . B r . ) Grlseb., Telegraph Creek D i s t r i c t , l e g . W.H.Mathews . (H-2023.); Arenaria c a p i l l a x i s P o i r . , Mt. Apex, Penticton, l e g . J.W.Eastham (H-2301); A. c a p i l l a r i s P o i r . v a r . var.  n a r d i f o l i a , F i s h Lake, l e g . J.R.Anderson (H-2302; A* formosa Fisch.,  St.Mary's P r a i r i e , l e g . J.W.Eastham (H-2023,; A. verna L . var. prop i n qua Fern., Mt. Gheam, l e g . J.K.Henry (H-2217); Arnica l a t i f o l i a Bong., Cathedral Lakes (H-l972); Artemisia v u l g a r i s L.yar. discolor (Dougl.) Peek, Cathedral Lakes (H-2152); Aster conspicuus L i n d l . , Salmon Arm (H-2289); Astragalus campeatria, Armstrong, l e g . E.Wilson (H-2285); A. glareosus Dougl., Kale den, l e g . E.Milley (H-2249I; A. Macounii Rydb., cathedral Lakes (H-2007); Balsamorrhiza sp., Vernon (H-2168); Brassica sp., Duncan (H-2257); Bromus p o r t e r ! (Coult.) Nash, McDonald s Landing, Francois Lake, l e g . J.W.Eastham (H-2191); 1  CalamagroBtis canadensis (Michx.) Beauv.,  Ootsa Lake, l e g . J.W.Eastham  (H-20S1); C.inexpansa Gray, Columbia Valley north o f Kimberley, l e g . J.W. Ea8tham (H-2192); C. negleeta (Ehrh.) Gaertn., Ootsa Lake, l e g . J.W.Eastham (H-2042); C. purpurascens R.Br., Chasm, Clinton, l e g .  J.W.Eastham (Hs-2087);  C. rubescens Buck!., Cariboo Highway, l e g . J.WiEastham  (H-*2086), C* Suksdorfli  (Link) T r i n . , Beaver Lake, l e g . A.H.Hutchinson (H-2190); Campanula ?Media L», Duncan (H-1996); Campanula sp., Duncan (H-2330); Car ex albonigra Mack., Garibaldi, l e g .  J.W.Eastham (H-2122); C. engarae Steud., Mt. Apex, Penticton,  leg., J.W.Eastham (H-2121); C» s t r a t a L., Mt. McLean, l e g . R.Glendenning tH-2120); C, atratiformis B r i t . , Garibaldi, l e g . J.Davidson (H-2054); C. aurea Nutt., McDonald's Landing, Francois Lake, l e g . J.W.Eastham (H-2119);  92.  Co f l a v a L o , Yoho National Park, l e g . W.C.McCalla (H-2307); Go phaeocephala P i p e r , Sage Pass, lego T.M.C.Taylor (H-2196); C.praegracilis Boott., Wheeler Mt,, Kamloops, l e g . E.W.Tisdale (H-2197); C. pyrenaica Wahl., Mt. Brent, Penticton, l e g . J.W.Eastham (H-2056); C a s t l l l e j a miniata Dougl., Cathedral Lakes (H-2163); C a s t i l l e j a sp., Shu swap P a l l s , Lumby (H-2165); Centaurea Jacea, U.B.C. (H-2176); Che i ran thus sp,, Duncan (H-2178, H-21Q4)» Chrysanthemum SP,. c u l t i v a t e d , Duncan (H-2173); Gichorium Intyhus L., Salmon Arm (H-2259); Oiraium arvense (L.) Scop., Princeton (H-2110, H-21L1); C. Hookerianum Nutt., Cathedral Lakes (H-2150); Crepis atribarba H e l l e r , Cranbrook, l e g . J.W.Eastham (H-2206); Cucftrblta Tmaxima, Duche, Duneah (H-2175$; Danthonia c a l i f o r n i c a Boland var. americana (scribe) H i t c h c , Cowlchan Lake, l e g . J.W.Eastham (H-2189); Delphinium sp., Duncan (H-2105); Deschampaia atropurpursa (Wahl.) Scheele, G a r i b a l d i , l e g . J.W.Eastham (H-2040); D. elongata (Hook.) Munro ex Benth., Wall Lake, l e g . T.M.C.Taylor (H-2188); Draba alpina L.» G a r i b a l d i , lege J,Davidson (H-2294); P. i n c e r t a Pays©., Coquihalla, l e g . F.Perry (H-2137); D. Paysonii Maobre, Cathedral Lakes (H-2157); D. praealta Greene, Mt. Waddington, l e g . W.Taylor (H*»2266); P. atenoloba Ledeb., Mt. Brent, Penticton, l e g . J.W.Eastham (H&2019); Elymua innovatus Bealo, Vanderhoof, l e g . J.W.Eastham (H-2038)4 Kechika River, l e g . N.C.Stewart (H-2039); Erigeron l i n e a r i s (Hook.) Piper,. T r a n q u i l l e , l e g . T.M.C.Taylpr (H-1990); E . pumilus subsp. lntermedius, Tobacco P l a i n s , l e g . J.W.Eastham (H-2213) j E. speciosus DC.var© typicus Cronqu., Vernon (H-2064); Erigeron sp., Vernon (H-2288); Festuoa a t t a i o a T r i n , , Telegraph Creek D i s t r i c t , l e g . W.H.Mathews (H-2002); F. ovina L», Mt. Pope, Fort S t . James, l e g . J.W.Eastham (H-2185); g.ovina L . v a r . brachyphylla (Schult.) Piper, McBride, l e g . J.W.Eastham (E-2296); F©_  93.  p a c i f i c a Piper, Cowichan Lake, l e g . J.W.Eastham (H-2184); F. rubra L.,. Hudson Bay Mt., Saithers, l e g . J.W.Eastham (H-2183); G a i l l a r d i a a r l s t a t e Pursh., Vernon (H-2312), Gray Creek, Kootengy Lakes, l e g . J.W.Eastham (H-2214); Geranium erianthum D C , Mile 27 on Yukon«White Pass Railway, l e g . J.M.Gillett and D.A.Mitchell (H-2194); Hieracium aurantiacum L., U.B.C. (H-2282); H. g r a c i l e Hook., Cathedral Lakes (H-2145); Hlerochloe alpina (Swartz») Roam., McBride, l e g . J.W.Eastham (H-2240); Hoborealis Roam. & Schult., A t l i n Lake, lego E.S.Wilkinson (H-2239); Ho odorata (L.) Beauv*, Coal Creek, Fernie, l e g . J.W.Eastham (H-2238); Hydrangea spo, Duncan (E-2180); I r i s germanica Lo, Duncan (H-l993); Juncus Drummondll Meyer, Mt. Apex, Penticton, l e g . J.W.Eastham (H-1989); K o e l e r i a c r i s t a t a (L.) Pers*, McDonald's Landing, Francois Lake, l e g . J.W.Eastham (H-2237)^ Mt. Pope, Fort S t . James, lego J.W.Eastham (H-2236), Mt. Brent, Penticton, lego J.W.Eastham (H-2082), Cariboo Road, l e g . E.Wilson (H-2085); Lathyrus odoratus L., Duncan (H*2181); Linum Lewi s i i Pursh., Windermere, l e g . J.W.Eastham (H-2219); Lomatlum ambiguum (Nutt.) C.& R., Cathedral Lakes (H-2280); Lupinus l a t i f o l i u a var* subalplnus (Piper and Robins.) CP.Sm., Cathedral Lakes, (H-2051); Lo L y a l l i i Gray, Cathedral Lakes (H-2272); L* sericeus Pursh., Vernon (H-2107); Lupinus sp., Vancouver Island, l e g . J.Macoun (OM-^916), Cathedral Lakes (H*2162), U.B.C (H&1995); Luzula P i p e r l (Cov.) M.E.Jones, G a r i b a l d i , l e g . J.W.Eastham (H-l987); Lo spicata (L.) D C , Dunn Peak, Chua Chua, legs E.W.Tisdale (H-2124); Lychnis Coronarla Dear., U.B.C  (H-2179); LycopETslcum esculentum M i l l * , Duncan (H-2172); Monardl  m o l l i s L., Vernon (H-2167); Oenothera biennis L., U.B.C (H-l992), Duncan (H-l994); Oryzopsis a s p e r l f o l l a Michx., Fairmont Hot Springs, l e g . Eastham (H-2235); 0. hymenoldes (R.& S.) Bicker, Penticton, l e g .  J.W.  J.W.  94.  Eastham (H-2234) j 0. pun gens (Torr.) H i t c h c , McDonald'3 Landing, Francois Lake, l e g . J.W.Eastham (H-2227); Panicum Occidentale S c r i b . , Gray Creek, Kootenay Lake, l e g . J.W.Eastham (H-2065); Pedicular i s bracteosa Benth., Cathedral Lakes (H~2036); Po paddoensis Pennel, Mt. McLean, lego S.J. Yamanaka (H-2200); Penstemon ovatus Dougl., Cathedral Lakes (H-2153) j Phacella leucophylla Torr., Vernon (H-1940); Phleum alplnum L., Anahin Lake, Chilcoten, l e g . C.F.Cornwall (H-2049, H-2156); Cathedral Lakes (H-2G09); G a r i b a l d i , l e g . J.W.Eastham (H-2232); Phlox d i f f u s a Benth., Mt. Copley, l e g . D.Elvidge (H-2133); P. Douglasli Hook., Forbidden Plateau, Vancouver Island, l e g . J.Bostock (H-2131); Poa alpina L., Hudson Bay Mt., Smithers, l e g . J.W.Eastham (H-2231), Wall Lake, l e g . T . M S C . T a y l o r (H-2250); p . a r c t l c a R.Br., McBride, l e g . J.7/.Eastham (H-2229); P. compressa L«, F l y i n g U Ranch, Cariboo, l e g . J.W.Eastham (H-2084); P. conf Ini s Vasey, Saanich S p i t , lege J.W.Eastham (H-2228); P. glauoa Vahl, Mount Rowe, l e g . T.M.C.Taylor (H-2079); P. i n t e r i o r Rydb., McDonald's Landing, Francois Lake, l e g . J.W.Eastham (H*2035); P. lettermanni Vasey, Mount Rowe, l e g . T.M.C.Taylor (H-2233); P. nervosa (Hook.) Vasey, Ootsa Lake, l e g . J.W.Eastham (H-2048), Hudson Bay Mt., Smithers, l e g . J.W.Eastham (H-2226); P. paucisplcula S c r i b n  e  & Murr., summit  between Francois and Ootsa Lakes, l e g . J.W.Eastham, (H-2006); P. pratensis L.« Kootenay Crossing, l e g . I .MoT •Cowan (H-2225) f Kamloops, l e g . E.W.Tisdale (H-2224); P. secunda Pre s i . . Old Forestry Lookout, Ootsa Lake, l e g . J.W. Eastham (H-2005); P. stenantha T r i n . , Lake G a r i b a l d i , l e g . J.W.Eastham (H-2077); Polemonium  californlcum Eastw., Mt. Brent, Penticton, l e g . J.W.  Eastham (H-2134); P. pulcherrimum Hook., Tobacco P l a i n s , l e g . J.W.Eastham (H-2328), Penticton-Merritt Highway, l e g . J.W.Eastham (H-2327), Skwa-ach Mt., l e g . J.Davidson (H-2326); Potent i l i a d i v e r s i f o l i a Lehm., Kennco Mining Camp, l e g . G.A.Noel (H-2003), Mount Monarch, A t l i n D i s t r i c t , l e g . W.A.Sfcbchell  95o (H-1998); P. f l a b e l l l f o l i a Hook., Cathedral Lakes (H-1999); P. N u t t a l l l i Lehm., Marysville, lege J.W.Eastham (H-2125); P. p a l u s t r i s (L.) Scop., Nelson, l e g . G.E.Woolliams and J.W.Eastham (H-1666); P n c c l n e l l i a N u t t a l l l a n a (Schult.) Hitchc., Doyle, south of Wasa, l e g . J.W.Eastham (H-2004); Ruraex Acetosella La, U.B.C. (H-2008); Sanicula erasaicaul i s Poepp., Vancouver Island, l e g . J.Macoun (GM unnumbered, J u l y 17, 1916); Schlzachne purpurascens (Torr.) Swallen, Prince George, l e g . J.W.Eastham (H-2223); Sedum stenopetalum Pursh., Cathedral Lakes (H-2155); Senecio integerrimus Nuttp, Cathedral Lakes (H-2145); Silene Douglasii Hook., Grand Forks, l e g . G.L. Landon (H-2218); Sisyrinchium angustifolium M i l l e r , east of Fernie, l e g . J.W.Eastham (H-2252), M c G i l l i v r a y , Crowsnest Pass, l e g . J.W.Eastham (H-2251), Canal F l a t s , l e g . J.W.Eastham (H-2250); S i t anion h y s t r l x (Nutt.) J.G.Smith, Redstone, l e g . J.W.Eastham (H-2161); Solidago multlradlata A i t . , Bennett, l e g . D.A.Mitchell (H-2203)'; Sphenopholls obtusata (Michx.) S c r i b . , Fairmont, l e g . J.W.Eastham (H*2045); Spiraea l u c i d a Dougl., summit Rossland Highway, l e g . G.E.Woolliams and J.W.Eastham (H-2325); S t s l l a r i a longipes Goldie§ Cathedral Lakes (H-2313); Stenanthium oceidentale Gray, Mt. Stephen, F i e l d , l e g . J.M.Fogg (H-2323); Stipa columbiana Macoun, McDonald's Landing, Francois Lake, l e g . J.W.Eastham (H-2221); S. comata T r i n * & Rupr., Dewdrop F l a t , l e g . V.C.Brink (H-2026); S. Richardsonl Link, McDonald's Land, Francois Lake* l e g . J.W.Eastham (H-2220); Symphorlcarpua albus (L.) Blake, Salmon Arm (H<*2109); Tanecetum vulgare L., U.B.C. (H-2171); T o f i e l d i a glutinosa (Mt.) Pars., Canal F l a t s , l e g . H.Murray (H-2097), Garibaldi, l e g . W.Cottle (H-2195), F i e l d , l e g . J.W .Eastham (H-2243), Coldstream Creek, Windermere, l e g . J.W.Eastham (H-2244); Trisetum apicatum (L.) R i c h t , Hudson Bay Mt., Smithere, l e g . J.W.Eastham 0  (E-2076); Zea Mays L., Duncan (H-2174); Zygadenus elegans (Pursh.) Rydb.,  96,  Fairmont Hot Springs,  lege T.M.C.Taylor (H-2241), Wall Lake, l e g . T.M.C.  Taylor (H-2242); L i l i a c e a e indet., Duncan (K-2295); herbaceous stalks, Penticton (H-2281), Duncan (H-2255); Gramineae indet., Kamloops, l e g . J.Macoun (OM-154), Duncan (H-2044); dead wood, A l l i s o n Pass (H-2H6)© M. Typhae (Laseh.) Lindau  (Plate I I I , fig.39)  P e r i t h e c i a amphigenous,  black, membranaceous, globose, 45-80 p. diameter; a s c i f a s c i c u l a t e , s e s s i l e , obclavate, 36-40 x 10-15 a; spores greenish, uniseptate, four guttulate, narrow-ellipsoid, upper c e l l s l i g h t l y wider, 11-15 x 3-4 5 p 0  a  On Typha  l a t l f o l i a L., Stanley Park, Vancouver (H-2062).  Sphaerella vagans E l l a & Ev.  (Plate I I I ,  fig.40)  P e r i t h e c i a scattered,  erumpent, becoming s u p e r f i c i a l , globose, black, membranaceous (50-) 250300  diameter; a s c i fasciculate,oblong-obclavate, s e s s i l e , 30-60 x 7-9 n;  spores b i s e r i a t e , ovate-oblong, uniseptate, s l i g h t l y constricted at the septum, hyaline to greenish, 12-16 x 4-7 u.  On leaves of Valeriana s l t c h e n s l s  Bong., Cathedral Lakes (H-2275)»  M.Wichuriana (Schroet.) Johens. (Plate I I I ,  fig.41)  P e r i t h e c i a gregarious,  innate, globose, 50-65 ji diameter, membranaceous; a s c i ovoid, s e s s i l e , f a s c i c u l a t e , 22-26 x 14-16 j i | spores conglobate, fusoid,uniseptate, not constricted, hyaline, 11 -13 x 3-3.5 jx» Park, l e g . W.CMcCalla Cariboo, l e g .  On Carex f l a v a L., Yoho National  (H-2307); C. p r a e g r a c i l i s Boott., F l y i n g U Ranch,  J.W.Eastham (H-2298); Carex sp., Soda Creek, l e g . J.Bancroft,  (H-2166); Festuea idahoensis Elmer, E l k o , l e g . J.W.Eastham (H-2297); Luzula Wahlenbergli Rup., McBride, l e g . J.W.Eastham (H-2123); Oryzopsis pungens (Torr.) H i t c h c , McDonald's Landing, Francois Lake, l e g . J.W.Eastham (H-2227); Poa ampla Merr., Junction E l k and Kootenay Rivers, l e g . J.W.  97  0  Eastham (H*2080); P * i n t e r i o r iftydb*, McDonald's Landing, Francois Lake, l e g * J.W.Eastham (H-2035)*  Mycosphaerella  sp* The f i v e c o l l e c t i o n s noted below have not been deter-  mined s a t i s f a c t o r i l y to species*  Short descriptions are given for each*  On S a l i x saximontana Rydb*, Cathedral Lakes (H-2268)j (Plate I I I , f i g . 4 2 ) : P e r i t h e c i a minute, black, membranaceous, erumpent, hypophyllous, 60 jx diameter; a s c i s e s s i l e , f a s c i c u l a t e , obovate, 22 x 36 ii;  globose,  spores  greenish, uniseptate, not constricted, lower c e l l narrower, granular, 15-17  x 6-7.5 yi*  On Ssmbucus sp., Soda Creek, l e g * J.Bancroft (H-2335)  (Plate I I I , fig.43):  P e r i t h e c i a black, membranaceous, erumpent, globose-conical, 60-75 jx diameter; some brown mycelium connecting p e r i t h e c i a ; asci s e s s i l e , f a s c i c u l a t e , ovate-oblong,. 33-39 x 15-18 yi; spores hyaline, granular, uniseptate, crowded i n the ascus, 12-13.5 x 4.5yu. On Sanicula c r a s s i c a u l i s Poepp., Vancouver Island, l e g * J .Macoun (CM numbered, J u l y 17, 1916)  (Plate I I I , f i g * 44):  un-  P e r i t h e c i a brown to black,  membranaceous, globose, o s t i o l e short p a p i l l a t e , erumpent, 60-100 p.  diameter;  asci s e s s i l e , obclavate, f a s c i c u l a t e , 33-45 x 10.5-12 yi; spores greenishhyaline, uniseptate, guttulate, upper c e l l broader, 12-15 On Silene Douglasli Hook*, Cathedral Lakes (H-2329)  x 3 jx*  (Plate I I I , fig.45):  P e r i t h e c i a black, shining, erumpent, coriaceous, p a p i l l a t e , globose,  230-  260jx diameter; a s c i s e s s i l e , f a s c i c u l a t e , clavate, narrowed to both ends, 75-120 x 30-38 jx;  spores greenish, uniseptate, s l i g h t l y constricted at the  septum, upper c e l l broader, 28-36 x 9-11 ^ i * On cone scales o f Thuja p l i c a t a D.Don*, Duncan (H-2278)  (Plate I I I , fig.46)t  P e r i t h e c i a black, membranaceous, erumpent, glo^Sse, o s t i o l e plane, 130-260 jx  98.  diameter; acme with a f a s c i c l e o f conidiophores at the apex, bearing brown apiculate, verrucose conidia; a s c i f a s c i c u l a t e , oticlavate, short stalked, 60-75 x 15-18 jx\ spores hyaline, straight or curved,uniseptate, not cons t r i c t e d , guttklate, 15-23 x 6-7.5 jx«  Phaeosphaerella K a r s t . As Mycosphaerella, but spores brown. P. maculosa  (Sacc.) K a r s t .  (Plate I I I , fig.47)  P e r i t h e c i a amphigenous,  imbedded i n l e a f t i s s u e s , l a t e r erumpent, globose, black, o s t i o l e minute, 60-200/1 diameter; a s c i s e s s i l e , elongate, i n f l a t e d at the base, aparaphysate, e i g h t - (often two- to six£) spored, 60-95 x 11-18 jx;  spores u n i -  seriate above, b i s e r i a t e below, broadly ovate-oblong, uniseptate, s l i g h t l y constricted at the septum, f i r s t hyaline, becoming d u l l brown, 14-24/1 long, upper c e l l 9-10 jx broad, lower c e l l 7-8 jx broad.  On leaves of  Populus tremuloides Michx., Saanichton (H-2012).  Pleoaphaerulina Pass. P e r i t h e c i a immersed, globose to flattened; a s c i aparaphysate, e i g h t spored; spores oblong, several-septate, one or more o f the c e l l s divided by a l o n g i t u d i n a l septum, hyaline. P. oonatricta (Starb.) Sacc.  (Plate I I I , fig.48) P e r i t h e c i a scattered  to gregarious, under the epidermis and r a i s i n g i t i n bumps, globose; a s c i s e s s i l e , aparaphysate, oblong, clavate, 50-60 x 13.5-15 ^ i ;  spores oblong,  greenish-hyaline, 3-5-septate, constricted at the middle septum, upper part shorter and broader, l o n g i t u d i n a l septum i n central c e l l s , (18-) 20-30 x 6-9 U s  On stems of Rosa sp., Sidney, l e g . J.Macoun (OM unnumbered, A p r i l , 1915)*  99 Pseudoplea v.Hohn. Perithecia Immersed, apices prominent, o s t i o l e d i s t i n c t , parenchymatous; a s c i ovoid, eight-spored; spores elongated, h\yaline, muriformo P. T r i f o l l i  (Rostr.) Petrak  Brioaiana P o l l a c c l )  (Sphaerulina T r i f o l i l Rostr., Pieosphaerulina  (Plate I I I , fig.49)  P e r i t h e c i a on small c i r c u l a r  spots, epiphyllous, brown, membranaceous, globose, 90-120p diameter; a s c i broadly ovate, s e s s i l e , aparaphysate, 50-75 x 27-42 p,  eight-spored;  spores hyaline, oblong, 3-septate, constricted at the middle septum, granular, with one o r more c e l l s containing a l o n g i t u d i n a l sapturn, 24-33 x 12-15 p»  On leaves o f Medicago s a t i v a L., U . B . C , l e g . W.Jones (H-2025).  Rehmlellopsla Bubak & Kabat Stromata lacking; p e r i t h e c i a subepidermal, immersed, globose-conical, o s t i o l e erumpent, coriaceous, brown-black; a s c i 10-24-spored, fuaoid to clavate, short stalked, aparaphysate; spores e l l i p s o i d to oblong, uniseptate, ends rounded, hyaline. Ro a b i e t i s (E.Rostr.) O.Rostr.  P e r i t h e c i a amphigenous, subepidermal be-  coming erumpent, single, globose, p a p i l l a t e , 150-200 p diameter; a s c i clavate to c y l i n d r i c a l , short-stalked, thick-walled, f a s c i c u l a t e , aparaphysate, many-spored (16-24), 50-90 x 20-22 yi; spores e l l i p s o i d , i r r e g u l a r , hyaline, 11-21 x 4-6.7p, one-septate, not constricted, granular. On l i v i n g leaves o f Abies lasiocarpa (Hook.) Nutt., i n B r i t i s h Columbia, not seen (Waterman 194531 327; CPDS 1945) •  Sphaerulina Sacc. P e r i t h e c i a immersed, l a t t e r somewhat erumpent, small, globose, or l e n t i c u l a r , black, membranaceous, ostiole plane or short p a p i l l a t e ; asci  100.  f a s c i c u l a t e , eight-spored, aparaphysate; spores elongate, rounded or pointed, with several cross walls, hyalines  Spores large., 45-54 x 14-18^1.  ••••••  Spores smaller, 18-22.5 X 7-9 u  ».....«.«»>«S« Gentianae  .«.».,....»......S» A l n i zm  S& A l n i A.Lorr.Smith foxma minor fm.nov.  (Plate I I I , fig.50)  ?  minor  Perithecia  immersed, black, coriaceous, depressed-globose, 600-700 X 450-500 JX  T  ostiole  erumpent, curved, 300-350 X 100-150 JX; a s c i b r o a d - e l l i p s o i d , narrowed at the base to a delicate slender s t a l k and at the apex rounded-truncate, t h i n welled, thiekened at the apex, at maturity d i s t o r t e d around the spores, 4866 x 18-24~JX; spores hyaline, three-septate, not constricted at the septa, i r r e g u l a r l y b i s e r i a t e , e l l i p s o i d t o ovate, straight or s l i g h t l y curved, multiguttulate, 18-22.5 x 7-9 u. spores.  D i f f e r i n g from the species i n the smaller  On p e t i o l e s of Alnus oregona Nutt.,, Stanley Park, Vancouver (H-1953)  S. A l n i A.Lorr.Smith forma minor fm. nov. A typo d i f f e r t sporis paullo brevioribus, nempe 18-22.5 x 7-9 ^x, nec 22-30 x 8 jx  e  Specimen typicum i n U n i v e r s i t y o f B r i t i s h Columbia herbario conservatum, i n p e t i o l i s A l n i oregonis Nutt,, prope locum dictum "Stanley Park, 760100x1*0^ i n B r i t i s h Columbia, l e g i t M.E.Barr (H-1953), March 29, 1952*  S. Gentianae Wehm.  (1946i 166)  (Plate I I I , f i g . 51, Plate VI, fi 40)» ge  P e r i t h e c i a formed beneath the epidermis* erumpent, s u p e r f i c i a l , globose t o c o n i c a l , 400-500 p. diameter, o s t i o l e abort p a p i l l a t e , wall t h i c k , c o l l a p s i n g i r r e g u l a r l y with age; asei c y l i n d r i c - c l a v a t e , walls t h i c k , 150-270 x 3239 (-54) ^u; spores hyaline, i r r e g u l a r l y b i s e r i a t e , e l l i p s o i d , 3-septate, s l i g h t l y constrioted at the septa, granular, guttulate, contained i n an  c  101a  . evanescent gelatinous envelope, 45-54 x 14-18 jx»  On Gentiana oalycosa  Griseb., Wall Lake, 6000», l e g . T.M.C.Taylor (H-1933)  0  This c o l l e c t i o n  shows a few paraphyses; i t could well be a Massarinao  17. Pleosporaceae P e r i t h e c i a separate, immersed, l a t e r more o r l e s s free, always with the short p a p i l l a t e or conical o s t i o l e erumpent;  membranaceous-coriaceous,  smooth o r tomentose or b r i s t l y ; a s c i clavate o r c y l i n d r i c a l , e i g h t - to many-spored; paraphyses or i n t e r t h e c i a l t i s s u e s present; spores various, one- to many-celled, muriform or f i l i f o r m , hyaline to dark-colored*  Spores one-celled, hyaline* Asci cylindrical  ,.... .Phomatospora  A s c i clavate o«...  ....................o......Physalospora  Spores more than one-celled, hyaline or dark colored. Spores two-celled© P e r i t h e c i a spiny or hairy* Spore s hyaline © . « . « • • . • • • » • « • • • • • . » • • . » • o • • . a . . . . . . . V e n t u r i a Protoventuria  Spores brown P s r i t h e c i a smooth. Spores hyaline*  Spores divided into two very unequal c e l l s .Aplosporella Spores diivid©;d i n t o two nearly equal c e l l s * Paraphyses  present....*.................©Didymella  Paraphyses absent Spores brown©  Didymellina Didymosphaeri a  102« Spores more than two-celled© Spores with transverse walls only© Spores f i l i f o r m .  .Ophiobolua  Spores not filiform© Spores hyaline.......»...©................ Metasphaeria 0  Spores brown.............................©Leptosphaerla Spores murifona© A s c i eight-spored (sometimes l e s s ) ©.....©..........©Pleospora A s c i sizteen-spored..•  ...Capronia  Aplosporella v. Hohn. P e r i t h e c i a immersed, then erumpent, globose; membranaceous, dark brown to black, o s t i o l e short; a s c i eight-spored, e l a v a t e - c y l i n d r i c e l ; paraphyses present; spores elongate, clavate-pyriform, smaller below, u n i septate , hyaline. A. alplna Wehm.  ( D i f f e r s from Apiospora i n l a c k i n g stroma). (1946:148)  (Plate I I I * fig©52)  Perithecia thickly  scattered, erumpeht-superficial, shiny black, flattened-spherical, 250350 z 200-250 ji\ walls thick; a s c i c y l i n d r i c a l - c l a v a t e , w a l l thickened at apez, 75-120 z 10-13 u ; paraphyses slender, longer than a s c i ; spores b i s e r i a t e , e l l i p s o i d to i n e q u i l a t e r a l , narrowed toward lower end, septum i r r e g u l a r l y placed near t h i s end, hyaline, 16-23 z 5-7 j i , guttulate© P e d l c u l a r i s bracteosa Benth©, Cathedral Lakes (H-2036)©  On  lehmeyer i n h i s  description states that no paraphyses nor paraphysis-like structures were seen; i n t h i s c o l l e c t i o n they are d i a t i n c t l y evident©  Capronia Sacc© P e r i t h e c i a erumpent, almost s u p e r f i c i a l , globose, o s t i o l e p a p i l l a t e ,  105,  beset with s t i f f , s t r a i g h t , dark b r i s t l e s ; asci sixteen-spored, elongate, short stalked; spores fusiform o r oblong, muriform, hyaline to brown; paraphyses lacking© »Ca pleiospora (Mout©) Sacc©  (Plate I I I , fig©53, Plate 71, fig©41)  thecia globose, setose, coriaceous-carbonaceous, 180 p  Peri-  diameter; a s c i  obovate, s e s s i l e , sixteen-spored, aparaphysate, 45-70 x 15-21 p;  spores  yellow- to grey-brown, three-septate, one or more longitudinal septa, e l l i p s o i d , crowded i n the ascus, 11-15 x 5-7 u©  On bark o f Prunus demlssa  (Nutt©) D.Dietr©, Stanley Park, Tancouver (B>1956)»  Didymella Sacc© P e r i t h e c i a immersed, o s t i o l e erumpent, globose, membranaceous, black, smooth; asci c y l i n d r i c a l to clavate, eight-spored; spores e l l i p s o i d or ovate, two-celled, hyaline; paraphyses present©  Spores small, 6-8 u long©©..©....«•©•••••••.......©........,  ..Do Rauii  Spores l a r g e r , over 12 u long© Spores uniseriate i n the ascus, 9 - l l u broad  >D» fenestrans  Spores b i s e r i a t e , not over 8 u broad© Spores with ends acute©  «.©D. D e l p h i n i l  Spares with ends blunt and rounded© On T r i f o l i u m  D© T r l f f r l i i  On Rubus.  D« applanata (Niessl©) Sacc©  D« applanata  (Plate I I I , fig.54)  P e r i t h e c i a gregarious,  submembranaceous, obscurely p a p i l l a t e , subglobose or depressed, immersed, becoming s u p e r f i c i a l when the epidermis f a l l s away, black; a s c i c y l i n d r i c a l  104. to clavate, subsessile, paraphysate, (45-) 60-75 x 10-15'yi; spores b i s e r i a t e , obovate to oblong, uniseptate, hyaline, constricted at the septum, upper c e l l broader, 12-18 (-21) x 4»5-6 (r7.5) ji.  On stems o f Rubus  p a r v i f l o r u s Nutt., U.B.C. (H-l973)j Rubu3 sppf, raspberry, Duncan (H-2022), (CPDS 1936, 1937), loganberry (CPDS 1931, 1932, 1934). D. D e l p h i n i l Barle  (Plate I I I , fig.55) P e r i t h e c i a abundantly scattered,  immersed, l a t e r p a r t i a l l y exposed, black, short p a p i l l a t e , subglobose, 250300 fi diameter; asci clavate, short stalked, paraphyscuhft, 80-90 (-105) x 12-15 u ; spores b i s e r i a t e , hyaline, s u b e l l i p s o i d , unequally uniseptate, ends, subacute, 18-25 x 6.5-8 fio  On A r n i c a l a t i f o l i a Bong., Cathedral Lakes  (H-1972). P. fenestrans (Duby) Wint.  (Plate IT, f i g . l )  P e r i t h e c i a scattered or  gregarious, Immersed, l a t e r erumpent, globose, becoming flattened^concave i n age, membranaceous-coriaceous, black, o s t i o l e c y l i n d r i c a l or c o n i c a l , about 400 ji diameter; a s c i c y l i n d r i c a l , short stalked, 10§-150 x 10-15jx; paraphyses i n d i s t i n c t ; spores hyaline, oblong-sllipsoid, unequal-sided, ends rounded, uniseptate, s l i g h t l y c o n s t r i c t e d at the septum, 18-30 x 9-12 u»  On s t a l k s of Epilobium angustifolium L., U.B.C. (H-l947), Mount  Seymour (H-2018). •D. Rauil (E11.& Eva) Sacc.  (Plate 17,, fig.2)  P e r i t h e c i a scattered or  two or three together, covered by the loosened.cuticle which i s pierced by the p a p i l l a t e o s t i o l e s , globose-depressed, 300-350 ji diameter; asci clavate, short-stalked, 35-45 x 4.5-7 ji;  no paraphyses seen; spores  b i s e r i a t e , yellowish-hyaline, oblong-fu3iform, uniseptate, constricted at the septum, s l i g h t l y curved, 6-8 x 1.5-2^ia  On stems o f Rosa sp., Sidney,  105, l e g . J.Macoun (OM unnumbered, A p r i l 1915)©  Wenmeyer (1933: 265) says  t h i s species should be placed i n Gncmonia or Gnomonina© D. T r i f o l i l (Fckl.) Sacc.  (Plate IV. fig.3)  P e r i t h e c i a gregarious,  immersed, depressed-globose, o s t i o l e p a p i l l a t e , erumpent, black, c o r i a ceous, 200  diameter; a s c i c y l l n d r l c - c l a v a t e , narrowed at the base,  paraphysate, (60-) 80-100 x 10-12 jx; spores b i s e r i a t e , becoming u n i s e r i a t e , oblong, uniseptate, constricted at: the septum, hyaline, upper c e l l broader, 15-20 x 5-7 /io  On stems of T r i f o l i u m sp©,  Diaporthe exlguestrcma Dear.,  Sidney, l e g . J .Macoun (0M-370).  (Dearness 1917: 348), type c o l l e c t e d on dead  stems o f Rosa sp., Vancouver Island, July 1916, John Macoun, 923, i s , according to Wehmeyer (1933: 252), a Didymella.  No specimens were seen©  Didymelllna v©Hohn© As Didymella, but destitute o f paraphyses© D© macrospora Klebahn©  P e r i t h e c i a black, carbonaceous, immersed, beak  erumpent, i r r e g u l a r l y globose, 175-305 x 120-321 jx, well pseudoparenehymatous; asdi few to many, f a s c i c u l a t e , ovate, fusiform, or clavate, short stalked or s e s s i l e , eight-spored, aparaphysate, 68-115 x 37-53jx; spores o r a l to e l l i p s o i d , two-celled, s l i g h t l y constricted at the septum, upper c e l l somewhat l a r g e r , hyaline, 35-57 x 10-16 jx»  On I r i s sp., not seen  (CPDS 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937).  Didymosphaerla F c k l . As Didymella, but spores brown© Spores large, not constricted at the septum, 16.5-21 jx lohg...D© oregonensis Spores smaller, constricted at the septum, 9-12jx long...  ...D. B o r g i i  10 6o *D.  ?Borgii Carnana-Gatto & Sacce  (Plate IT, fig.5)  P e r i t h e c i a gregarious,  erumpent through epidermis, globose, short p a p i l l a t e , 300-500 u  diameter,  black; asci c y l i n d r i c a l , short stalked, four- to eight-spored (68-) 84 x 7-8 i i , paraphysate;  75-  spores oblique* light-brown, one-septate, con*  s t r i c t e d at the septum, 9-12 x 6 u©  On Stems of Rosa sp©,  Saanichton  (H-2024J; t h i s c o l l e c t i o n f i t s the species description except f o r the occasional four-spored condition o f the a s c i and the c o n s t r i c t i o n a t the septum o f the spores*  Do oregonensia Goodding©  (Plata IT, fig.4) P e r i t h e c i a black,membranaceous,  globose, r a i s i n g the epidermis o f the branch, 400 ja diameter; a s c i clavatec y l i n d r i c a l , very short stalked or s e s s i l e , eight-?spored, paraphysate, 105 x 10o5-13o5 u; spores greyish-brown,  75r  b i s e r i a t e or i r r e g u l a r , e l l i p s o i d ,  uniseptate, granular, guttulate, upper c e l l s l i g h t l y broader, 16©5-21 x 6 ya©  On Alnus oregona Nutto, Knight I n l e t * legs I©Scaledel, det.  Buckland  (U-324); Sayward, lego and det  0  D.C.  D.C.Buckland (TJ-413, tJ-665);  Ao sitchensis Sarg., Clearwater, lego and det* D.C.Buckland (U-666)*  Leptosphaeria Geso & de Not* P e r i t h e c i a immersed i n the substrate, becoming erumpent, globose to conical, coriaceous-membranaceous, brows or black, o s t i o l e p a p i l l a t e or conical; a s c i clavate or c y l i n d r i c a l , becoming elongated at maturity, e i g h t spored; spores e l l i p s o i d to fusiform, transversely divided into three to many c e l l s , yellow to dark brown; paraphyses present (occasionally lacking©).  Spores three- to four-septate© On Monocotyledons©  107.  Spores elongate, 45-60 u long........•  . . . . . J . . petkovicensis  Spores shorter. Spores 9-11 jx wide.............................L.  eplcarecta  Spores up to 9 u wide. On Typha......................................Lo Typhae On other p l a n t s . On Carex. Spores 6-9 jx wide.o.o................L«  Lolii  Spores 5-5o5 jx wide............... ».L« Apogon On other plants© Spores 17-27 jx long...............Lo culmorum Spores 15-18 j i long..  .........Lo eustoana  On Dicotyledons. Spore s elongate, (30-) 36-42 jx l o n g * . . . . . . • .L. Silenes-acaulis Spores shorter. Spores 12-14wideoe,...*..  ...........L. Andromedae  Spores narrower. Spores over 20 jx long.. Spores  4-septate .. ..................L. C a l i f o m i c a  Spores 3-septate.... Spores not orer 20  .L. jpratensls  long..  A s c i 90-115 jx long..............o.oL.  eonlothyrium  A s c i up to 80 u long. Spores 15-20 x 3-4.5 p...........L. dumetorum Spores 12-16 x 5 a.............L. Spores more than four-septate.  Gaultheriae  108, Spores five-septate© Third c e l l o f spore enlarged, on Monocotyledons....©»L© culmicola Second c e l l o f spore enlarged* on Dicotyledons*........*L» Jtonora Spores s i x or more septate* On Monocotyledons. On Carex.....•».••••.•••»•»  .......L* consobrina  On other plants* On Typha*.  ..L. typhi cola  On Gramineae.......«.»...................©L©  culmifraga  On Dicotyledons*..•••••©.©•••.•©•••.•••.• •..............L» agnlta L . agnita (Daam.) Ges.. Ss de Not*  (Plate IV, fig.6)  P e r i t h e c i a widely  scattered, erumpent, globose o r s l i g h t l y depressed, 200-300 jx diameter, walls thick; asci short clavate, becoming elongate, base claw-like, 70115 (-150) x 9-15p.; spores f a s c i c u l a t e , f u s o i d - c y l i n d r i e a l , pale yellowbrown, 6-septate, constricted at the t h i r d septum which i s nearly c e n t r a l , t h i r d c e l l enlarged, tapering towards both ends, with droplets on each side of the septa, somewhat curved, (28-) 35-45;(-48) x 3.5-6 jx«  On Erigeron  speciosus DC. var* macranthus (Nutt.) Gronq., Vernon (H-2064); Lupinus l a t i f o l i u s Agho var. subalpinus (Piper & Robins©) C.P.Sm*, Cathedral Lakes  (H-2051). L . An drome dae (Awd©) Sacc* fig.7)  (L. hyperborea (Fckl.) B e r l * & Vogl©)  (Plate IV,  P e r i t h e c i a epiphyllous, black, innate, ovoid, 160 x 130 ji, o s t i o l e  erumpent; asci broadly clavate, s e s s i l e , 75-136 x 24-30 ji; spores b i s e r i a t e * crowded, oblong, ends rounded, 3-septate, constricted at the central septum, hyaline f i n a l l y becoming brown, 27-34 x 12-14 yu© l e g . V.C.Brink (H-2050).  On Casslope sp., G a r i b a l d i ,  This i s very near to Massaria.  109© » L . ?Apogon Sacc. & Speg.  (Plate IV, fig.8)  P e r i t h e c i a sparse, globose,  immersed, p a p i l l a t e , 150 jx diameter, membranaceous; a s c i oblong, subs e s s i l e , paraphysate, 45-60 x 9-13 u; spores b i s e r i a t e , oblongrsubfusoid, 3-septate, s l i g h t l y constricted at the central septum, olivaceous, 28-27 x 3-5.5. jx* On Carex diandra Schrank., Vanderhoff, l e g . J.W.Eastham (H-2089); C. Hoodii Bbott., Smithers, l e g . J.W.Eastham (H-2090).  This species  f i t s the c o l l e c t i o n s c i t e d ; the host d i f f e r s .  L . C e l i f o r n l c a (Gke. & Hark.) Sacc.  (Plate IV, fig.9)  P e r i t h e c i a gre-  garious, immersed, black, f i n a l l y p a r t i a l l y erumpent, globose-conical, 250-300 jx diameter; a s c i clavate, stalked, 105-120 x 12-15 jx\ paraphysate; spores b i s e r i a t e , sublanceolate, second c e l l swollen, 4-septate and s l i g h t l y constricted at the septa, pale brown, 21-30 x 2.5-8 jXo  On branches of  Cytisus sp., Duncan (H^-2037) .  L. Oamelliae Cooke & Mass. P e r i t h e c i a sparse, punctiform, on epiphyllous brown spots, p a p i l l a t e o s t i o l e erumpent; a s c i subolavate, usually 4-spored, short stalked; spores b i s e r i a t e , fusoid, curved, 3-septate, constricted, greenish, 25-27 x 5-6 jx* On Camellia sp., Saanichton, not seen ,L. ooniothyrium (Eckl.) Sacc.  (CPDS  1952).  P e r i t h e c i a single or gregarious, erumpent,  depressed-globose, p a p i l l a t e ; a s c i c y l i n d r i c a l , stalked, paraphysate, 90115 x 7.5-9 jx; spores mostly uniseriate, oblong, t y p i c a l l y 3-septate, some" what constricted, fuscous, 14.5^16 x 4-5jx.  Oh Rubus sp., raspberry, not  seen (CPDS 1928, 1931, 1932, 1933, 1934, 1936, 1937, 1938, 1939, 1940); Loganberry (CPDS 1931); blackberry (CPDS 1931).  110  Lo consobrina Karate (Plate IV*. fig.10)  P e r i t h e e i a sparse to gregarious,  immersed, s p h e r i c a l , o s t i o l e p a p i l l a t e , erumpent, black; a s c i s e s s i l e , elongate-elavate, peraphysate, 72-120 x 10-22 j i ; spores b i s e r i a t e above, uniseriate below, s l i g h t l y curved, attenuated at the ends, 7-8-rseptate , constricted a t the septa, greyish-brown,  (27-) 36^-50 x 4-8 ^ i .  aenea Fern., McBride, l e g . J.W.Eastham (H-2053); C. brunnescans  Oh Carex (Pers.)  P o i r . , Vanderhoof, l e g . J.W.Eastham (H-2043).  L . culmicola (Fr.) Awd.  (Lo microscopica Karat.)  (Plate 17, f i g . l l )  P e r i t h e c i a scattered or subgregarious, immersed, o s t i o l e p a p i l l a t e and erumpent, globose, 200-270^1 diameter; a s c i clavate j short-stalked, para** physate, 70-84 (-105) x 7.5-9 jx; spores fusoid, sub i n e q u i l a t e r a l , s l i g h t l y curved, 5-septate, t h i r d c e l l enlarged, honey-yellow, 19-24 (-30) x 3.55 jio  On P h a l a r i s arundinacea L«, Ladner, l e g . J.W.Eastham  L . oulmifraga (Fr.) Ces. & De Not.  (Plate 17, fig.12)  (H-2032fc*  Perithecia  scattered or s e r i a t e , Immersed, l a t e r erumpent, subcompressed, o s t i o l e short-conical, black, 300-400 x 200-250 ji; a s c i clavate, paraphysate, 72114 x 10-16 jx\  spores b i - to t r l s e r i a t e above, fusoid-elongate, mostly  curved, 7-9-septate, t h i r d c e l l somewhat swollen, s l i g h t l y constricted at the septa, yellow to d u l l brown, (24*0 32-46 x (3-) 5-7 jx&  On Agropyron  spieatum (Pursh.) Rydb©, Fairmont Hot Spiings, l e g . J.W.Eastham (H-2060); Agroatis alba L.* Nelson, l e g . J.W.Eastham (H-2059); A. Rossae Vasey, G a r i b a l d i , l e g . J.W.Eastham (H-2058); A. scabra W i l l d . , Revelstoke, l e g . J.W.Eastham (H-2057); Calamagrostis canadensis (Michx.) Beauv., Ootsa Lake, leg.  J.W.Eastham (H-2061); Elymus Macounli Vasey, Anahin Lake, Chllcoten,  leg.  C.F.Cornwall  (H-2053); Panlcum occidentale Scrib., Gray Creek.  111c  Kootenay Lakes, lego* J.W.Eastham (H-2065); Poa alpina L., B a r k e r v i l l e , leg.  J.W.Eastham (H-2081); P. compressa L*, Cariboo, l e g . J-W.Eastham  (H-2084); P. nemoralie Lo, Spuzzum, l e g .  J.W .Eastham (H-2047); P. nervosa  (Hook.) Vasey, l e g * J.W.Eastham (H-2048); P. a a l u s t r i s L.,  St.Mary*s  Lake-jvKi^erley, l e g . J.W Eastham (H-2046); P. stenaatha T r i n * , G a r i b a l d i , l e g . J.W.Eastham (H-2077)*  L . culmorum Awd. the  (Plate IV, fig.13)  P e r i t h e c i a scattered, immersed i n  substrate, o s t i o l e projecting, black, glabrous, up t o 150jx diameter;  asci elongate-clavate, vary short stalked or s e s s i l e , peraphysate, (45-) 60-90 (-100) x (MJ) 15-22ya; spores b i - t o t r i s e r i a t e , oblong-fusoid, subinequilateral or s l i g h t l y curved, 3-septate, second c e l l enlarged, honey-yellow to d u l l brown* (15-) 17-27 (-30) x 5-9 ji. neglect a (Ehrk.) Gaertn., Ootsa Lake, l e g . parascens R.Br., Clinton, l e g .  On Calamagrostis  J.W.Eastham (H-2042); C. pur*  J.W.Eastham (H-2087); C. rubescens Buck!.,  Cariboo Highway, l e g * J.W.Eastham (H-2086); Calamovilfa l a t i f o l l a (Hooko), Scribn©,. K e t t l e V a l l e y , l e g . H.K.DeBeck (H-2088); Dactyl!s glomerata L., Harrison Lake (H-2031); Dapthonia intermedia Vasey, Garibaldi, l e g J.W. Eastham (H-2041); Deschampsla atropurpurea (Wahl.) Scheele, Garibaldi, l e g . J.W.Eastham (H-2040); Elymus innovatua Beal, Vanderhoof, l e g . J.W. Eastham (H«?2038), Kechika River, lego N.C.Stewart (H-2039); E . Macounli Vasey, Aaahin Lake, Chileoten, l e g . (L.)  C.E.Cornwall (H-2065); K o e l e r l a c r i s t a t a  Perso, Cariboo Road, l e g . E.Wiison (H-2085), Mt. Brent, Penticton,  l e g . J.W.Eastham (H-2082); Pan!cum thermale Boland, Fatnaont Hot Springs, l e g . J.VJ.Eastham (H-2083); Poa ampla Merr., E l k and Kootenay Rivers, lego J.W.Eastham (H-2080); P. compressa L., Cariboo, l e g . J.W.Eastham (H-2084); P. glauca Vahl, Mount Rowe, l e g . T.M.C.Taylor (H-2079); P. g r a c i l l i m a Vasey,  G a r i b a l d i , l e g , J.W.Eastham (B$»2075); P. secunda Pre s i . , Ootsa Lake, lege, J.W.Eastham (H-2005)-; Trisetup spicatum (L.) Richt., Smithers, leg.  J.W.  Eastham (H-2076)e  L . dumetorum N i e a s l . (Plate IV, fig.14)  P e r i t h e c i a scattered, immersed,  subglobose, collapsing, p a p i l l a t e , membranaceous-coriaceous, black, 2003 0 0 y u diameter; asci clavate-oblong, short sialked, paraphysate, 60-84 x 6-9 jx; spores b i s e r i a t e , fusoid^blong,;?straight or s l i g h t l y curved, subacute, 3-septate, constricted at the septa, second c e l l s l i g h t l y swollen, olive-yellow, 15-20 x 3-4.5 jXo  On L o n i c e r a involuetratum Banks., Harrison  Lake (H-l 971)«  L . epicarecta (Gke.) Sacc.  (Plate IV, fig.15)  P e r i t h e c i a scattered, black,  globose, 165-210jx diameter; a s c i clavate, paraphysate, 66-90 £-114) x '  20-23jx\ spores b i s e r i a t e , e l l i p s o i d , 3-septate, second c e l l enlarged, (21-) 27-30 x 9 - l l n .  On Oarex atratiformis B r i t t . , Garibaldi, l e g . J .  Davidson (H-2054).  L. eustoma (Er.) Sacc. Sensu B e r l .  (plate IV, fig.16)  P e r i t h e c i a scattered  or clustered, small, 90-150 (-200) jx diameter, immersed, l a t e r erumpent, globose then depressed; a s c i broad- to narrow-clavate, wall thickened, base claw-like, 45-70 x 8-12 jx; spores b i s e r i a t e , f u s o i d - e l l i p s o i d , i n e q u i l a t e r a l to curved, deep yellow-brown, 3-septate, not much constricted at the septa, 16-20  (-23) x 3.5-5.3 jx.  leg.. C.E.Cornwall  On Phleum alpinum L., Anahin Lake, Chilcoten,  (H-2049).  L. Gaultheriae Dear.  P e r i t h e c i a scattered, black, erumpent, ovoid-conic to  globose, 115-255jx diameter; o s t i o l e short, black, conic, shining; a s c i broad-linear, paraphysate, 75-80 x 6.5-7 yu;  spores pale brown, uniseriate,  113, overlapping, 3-septate, l a r g e r i n the upper h a l f , 12-16 x 5yu.  On dead  stems o f Gaultheria Shallon Pursh., Vancouver Island, August 1916, Macoun 980, not seen (Deerness 1917:  L. ? L o l i i Syd.  (Plate IV, fig.17)  John  349).  P e r i t h e c i a sparse, black, immersed,  f i n a l l y erumpent, globose, 180-210jx diameter; a s c i elongate-clavate, short-stalked, straight to curved, paraphysate, 72-102 (-120) x 13-18yi; spores b i s e r i a t e , 3-septate, s l i g h t l y constricted at the septa, yellowbrown, second c e l l enlarged, s l i g h t l y curved, 24-32 x 6-9yu.  On Carex  sitchensis Prescott, Topley Landing, Babine Lake, l e g . J.W.Eastham (fi-2091)i This c o l l e c t i o n , although on a different hast, f i t s the species w e l l .  * L. petkovicenais Bubak & Banojevic  (Plate IV, fig.18) P e r i t h e c i a globose,  p a p i l l a t e * black, immersed, 100-150 jx diameter; asci elongate,shortstalked, paraphysate, 65-96 x 12-20 jx\ spores fusoid, straight or curved, attenuated at the ends, 3-septate, not constricted, pale brown, 38-50 x 4-5 jx.  (-60)  On Carex diandra Schrank., Vanddrhoof, l e g . J.W.Eastham (H-2089);  C. pyrenaica Wahl., Mt. Brent, Penticton, l e g . J.W.Eastham (H-2056); Juncus Drummondii Meyer, Mt. Apex, Penticton, l e g . J.W.Eastham (H-1989); J . P a r r y l Engelm., Paradise Mine, Windermere, l e g . G.A.Hardy (H-2034).  L . pratensis Sacc. & Br.  P e r i t h e c i a immersed, globose, small, depressed,  250-330yi diameter, o s t i o l e obtuse, erumpent; a s c i c y l i n d r i c a l - c l a v a t e , short-stalked, paraphysate, 68-112 x 8-12 jx; spores b i s e r i a t e , fusiform, ends obtuse, f i r s t hyaline, l a t e r yellowish, 3-septate, s l i g h t l y constricted at the septa, straight or curved, 28-32 x 5-6 jx» (CPDS 1938).  On Melilotus sp., not seen  114.  L . S i l e n e s - a c a u l i s de Not.  (Plate 17, fig.19)  P e r i t h e c i a epiphyllous,  globose, o s t i o l e erumpent, black, 90-150ji diameter; a s c i s e s s i l e , peraphysate, (45-) 60-75 x (12-) 15-17 ji;  oblong-clavate,  spores conglomerated,  fusoid, s l i g h t l y curved, 3-septate, not constricted, yellow-brown, 30-42 x 4.5-7 ji»  On Silenea a c a u l i s L., Cathedral Lakes (H-2052).  L . tenera E l l i s .  (Plate 17, fig.20)  P e r i t h e c i a somewhat depressed-globose,  200-350 jx diameter, immersed, l a t e r erumpent, o s t i o l e p a p i l l a t e , membranaceous; a s c i clavate, wall somewhat thickened, base claw-like, 75-95 x 6-7 ji;  spores b i - to t r i s e r i a t e , f u s o i d - c y l i n d r i c a l , straight or s l i g h t l y  curved, pale yellow, 5-septate,  second c e l l enlarged, 18-23 x 2.5-3.5 ji»  On Arabia Drummondii Gray, Mt. Apex, Penticton, l e g . J.W.Eastham (H-2055); Draba stenoloba Ledeb., Mt. Brent, Penticton, Leg. J.W.Eastham (H-2019)«  L. Typhae Karst.  (Plate 17, fig.21)  P e r i t h e c i a sparse, amphigenous, innate,  o s t i o l e p a p i l l a t e , globose, 90-105 ji diameter, black; a s c i fusoid-elongate, subsessile, paraphysate, 50-70 x 9-12 p.; spores b i s e r i a t e , fusoid-elongate, curved, ends obtuse, 3- (4-) septate, second c e l l enlarged, yellowish, 15-21 x 4.5-6 jpL» On Typha l a t i f o l i a L., Stanley Park, Vancouver ,(H-2062) •  L. t y p h i c o l a Karat.  (Plate 17, fig.22)  P e r i t h e c i a erumpent, globose, 200-  350 j i diameter, short p a p i l l a t e , black; a s c i clavate, stalked, paraphysate, 90-124 x 12 ji;  spores b i s e r i a t e , 9-septate, s l i g h t l y constricted at the  septa, l i g h t brown, middle c e l l enlarged, 33-50 x (4.5-) 6-10  On Typha  l a t i f o l i a L., Stanley Park, Vancouver (H-2062).  The following c o l l e c t i o n s cannot be i d e n t i f i e d to species.  Due to the  s c a r c i t y o f material they are described here b r i e f l y as Leptosphaeria sp. only.  115.  On Arenaria obtusiloba (Hydb.) Fern., Cathedral Lakes (H-206?) f i g . 23):  (Plate IV,  P e r i t h e c i a nearly s u p e r f i c i a l , brownish, coriaceous, covered  with matted brown septate mycelium, globose, p a p i l l a t e , 400 p. diameter; a s c i clavate, stalked, paraphysate, 175-240 x 21-24yu; spores b i s e r i a t e or crowded above, uniseriate below, r i c h brown, at f i r s t 4-, l a t e r  7-8-  septate, constricted at the septa, t h i r d c e l l s l i g h t l y enlarged, curved, ends obtuse, 45-54 x 10-12jx. On Arnica latifolia,Boag«, Cathedral Lakes (H-1972)  (Plate IV, f i g . 2 4 ) :  P e r i t h e c i a black, coriaceous, covered with short spiny dark brown hairs, erumpent, globose-conical, 400 ji  diameter; a s c i clavate, short-stalked,  with scanty paraphyses, 180-250 x 30-36 .u; spores c y l i n d r i c a l , ends rounded, 4-5-septate, second c e l l enlarged, s l i g h t l y constricted at the septa, b i s e r i a t e , yellowish- to grey-brown, (55-) 69-69 x 15-18 jx. On Festuca,attaica T r i n . , Telegraph Creek D i s t r i c t , l e g . W.H.Matthews (H-2002), and Sitanion h y s t r i x (Nutt.) J.G.Smith, Paradise Mine, Windermere, leg.  G.A.Hardy (H-2074)  (Plate JV, fig.25):  P e r i t h e c i a black, membran-  aceous, immersed, becoming erumpent, globose-depressed, 150-330 ji  diameter,  with or without basal tomentum; a s c i broad clavate, short-stalked, paraphysate, (105-) 120-150 (-210) x 27-33 jx; spores b i s e r i a t e , yellow- or olive-brown, mostly 3-, occasionally 4-6-septate, second c e l l enlarged, constricted at the septa, straight or curved, (33-) 39-54 £-60) x (11-) 12-18  (-20)  u.  On Ledum glandulosum Nutt., (H-2068) and S a l i x pennata B a l l , (H-2069), Cathedral.Lakes (ELate IV, f i g . 2 6 ) :  P e r i t h e c i a black, membranaceous-  coriaceous, erumpent, globose-conical, 80-150 jx diameter, a s c i oblongclavate, short stalked or s e s s i l e , aparaphysate, 36-66 x 15-21 u; spores  116. crowded, brown, 3-septate, deeply constricted at the central septum, each h a l f ovate, 15-18 x 4.5-8 jx. On Ledum groenlandicum Oedr., Burnaby Lake', l e g . V.C.Brink (H-2070) IV,  fig.27):  (Plate  P e r i t h e c i a black, membranaceous, globose, erumpent, s l i g h t l y  tamentose, 90-105 ya diameter, epiphyllous on grey spots on l e a f and on branch; a s c i obclavate, s e s s i l e or short-stalked, paraphysate, 45-60 x 9-15 yi; spores overlapping b i s e r i a t e , yellow-brown, 3-septate, second c e l l enlarged, straight or s l i g h t l y curved, 15-18  (-21) x 4.5-6 yi.  On Oxytropis a l p i c o l a (Hydb.) Jones, Sage Pass, 7500 ,. l e g . T.M.C.Taylor 1  (H-2066)  (Plata IV,  f i g . 28):  P e r i t h e c i a black, membranaceous, tomentose,  erumpent, globose, p a p i l l a t e , 600-670 jx diameter; a s c i c y l i n d r i c a l - c l a v a t e , paraphysate, stalked, 150-180 x 13-15 jx\ spores l i g h t brown, b i - to t r i seriate, (9-) 11-12-septate, middle septum constricted, c e l l above the c o n s t r i c t i o n enlarged, guttulate near each septum, 59-69 x 6-7.5 jx* On Poa rupicola Nash, Sage Pass, 7500*, l e g . T.M. C.Taylor (H-2078) IV,  fig.29):  (Plate  P e r i t h e c i a black, membranaceous, immersed, globose, 120-150 jx  diameter; a s c i broad clavate, short stalked, paraphysate, 75-90 x 21-25yu; spores crowded b i s e r i a t e , yellowish to reddish brown, 5-septate, t h i r d c e l l enlarged, constricted at the septa, e l l i p s o i d - f l a t t e n e d , straight or curved, 24-36 x 8-9 jx. On Gramineae (ribbon grass), Duncan (H-2044):  P e r i t h e c i a black, membranaceous,  v i s i b l e under the epidermis, depressed-globose, 195-270 jx diameter; asci c y l i n d r i c a l - c l a v a t e , short-stalked, paraphysate* 90-120 x 9 jx; spores i r r e g u l a r l y b i s e r i a t e , hyaline, l a t e r olive-brown, 5-6-septate, middle c e l l enlarged, each c e l l containing a guttule, 24-30 x 3-4jx»  117. Metasphaeria Sacc* P e r i t h e c i a globose, immersed, covered at f i r s t by the epidermis, membranaceous-coriaceous, dark colored, with short, p a p i l l a t e or conical o s t i o l e ; a s c i c y l i n d r i c a l to clavate, eight-spored; spores e l l i p s o i d , elongated, three- to many-celled, hyaline; paraphyses present. Spores u n i s e r i a t e , ends rounded.  .M. Macoun i i  Spores subbiseriate, ends pointed. P e r i t h e c i a l a r g e , 270-550jx diameter...........................M. Poae P e r i t h e c i a smaller, 100-130 jx diameter. M. Macounii Dear.  .M. zobeliana  (Plate IV, fig.30) P e r i t h e c i a black, globose-conical,  bases flattened, beneath wood with o s t i o l e s v i s i b l e , through whitened areas of the stem, 300-750 u diameter; a s c i c y l i n d r i c a l , paraphysate, 135-170 (-210) x 7-9 jx;  spores u n i s e r i a t e , hyaline  (becoming brown i n one  rounded at the ends, 3-septate* 16-22 x 6-7 yi.  collection),  On dead decorticated stems  of Rosa sp., Vancouver Island, June, 1915, John Macoun, not seen (Dearness 1916: 100).  A c o l l e c t i o n on Rosa sp., Saanichton (H-2024) f i t s t h i s des-  c r i p t i o n p e r f e c t l y except that the spores become brown with the;..end c e l l s a l i g h t e r color.  I f t h i s c o l l e c t i o n i s i d e n t i c a l with the species, as i t  appears, i t should be transferred t o Leptosphaeria.  M. Poae (Niessl.) Sacc.  (Plate IV, fig.31)  P e r i t h e c i a black, membranaceous-  coriaceous, crowned with short setae, globose-depressed, 270-330 jx diameter; a s c i clavate, curved, paraphysate, 70-90 (-105) x 9-15 jx\ spores subellipsoid, straight to s l i g h t l y curved, i n d i s t i n c t l y 3-septate, second c e l l enlarged, guttulate, hyaline, b i s e r i a t e , 22-30 x 4.5-6yu.  On Poa i n t e r i o r Rydb.,  McDonald's Landing, Francois Lake, l e g . J.W.Sastham (H-2035)*  118.  *M.  ?zobeliana S t a r i t z .  (Plate IV, fig.32)  P e r i t h e c i a immersed, o s t i o l e  erumpent, small, 100-130^1 diameter, coriaeeous-membranaceous; a s c i clavate, short-stalked, paraphysate, 54-60 x 7.5-^7 p; spores i r r e g u l a r l y b i s e r i a t e , hyaline, 4-celled, c o n s t r i c t e d at the septa, straight to s l i g h t l y curved, 18-27  x 4-6jx.  On Delphinium Brownii Rydb., Sinkut Lake, Vanderhoof, l e g .  J.W.Eastham (H-2033).  Ophiobolus Riess. P e r i t h e c i a scattered or gregarious, subglobose, membranaceous-coriaceous, brown or black, immersed or suberumpent; o s t i o l e p a p i l l a t e or elongated; a s c i c y l i n d r i c a l , paraphysate; spores f i l i f o r m , guttulate or septate, hyaline or yellowish. Spores separating into many parts at maturity  0. rudis  Spores not separating. Spores 55-110 p. long. On twigs; spores 55-70 ji long..  .0. minor  On herbaceous stems or stems of Gramineae; spore3 60-110 p On Gramineae; a s c i 90-115 x  10-13yu........  long.  0. c a r i c e t i -  On herbaceous stems; a s c i 120-150 x 8-10ya.....O. acuminatus Spores over 115 p long. P e r i t h e c i a on p u r p l i s h stains on dead stalks; spores 140-165 p long.  .0. porphyrogonus  P e r i t h e c i a on l i v i n g leaves; spores 115-155 jx long...0. Rostrupii  0. jacuminatus (Sow.) Duby  (Plate IV, fig.33, Plate VI, fig.42)  Perithecia  scattered, immersed, f i n a l l y erumpent, o s t i o l e conical to s h o r t - c y l i n d r i c a l , m y c e l i a l hyphae around the base, 300-400  diameter; asci c y l i n d r i c a l - c l a v a t e ,  119.  eight-spored, short-stalked, paraphysate, 120-150 (-180) x 8-14 j/x; spores f i l i f o r m , multinucleate, then multiseptate, usually with one j o i n t near the middle swollen, yellowish, 75-150 x 2-4yu.  On stalks of Cirslum  lanceolatum (L.) Scop., Vancouver Island* l e g . J.Macoun, det. J.Dearness (OM-926); Cirsium sp., Saanichton (H-1969).  0. e a r i c e t i (Berk. & Br.) Sacc. aceous-carbonaceous,  (0. graminis Sacc.)  P e r i t h e c i a membran-  smooth, immersed, 330-500 jx diameter; o s t i o l e s beaked,  erumpent, curved, obliquely attached; a s c i elongate-clavate, short-stalked, or s e s s i l e , eight-spored, paraphysate, 90-lL55x 10-13jx; spores f a s c i c l e d to subbiseriate, hyaline, f i l i f o r m , curved, multi guttulate, f i n a l l y septate, 60-90 x 3 u.  5-7-  P a r a s i t i c on wheat, barley, rye, and various w i l d  grasses, causing the t a k e - a l l disease.  On Triticum asstivum L., Duncan,  l e g . W.Jones (immature) (H-612, CPDS 1930, 1935, 1936, 1939, 1940); on Avena sativa L .  0.minor Bubak  (CPDS 1939).  (Plate IV, fig.34)  P e r i t h e c i a globose to depressed, immersed  with the short beak v i s i b l e , l a t e r erumpent, black, membranaceous, 200-300 jx diameter; asci c y l i n d r i c a l , broader near base, short stalked, paraphysate, 54-90 x 7-12 jx; spores f i l i f o r m , more or l e s s curved, often bent almost at r i g h t angles when free from the ascus, with several guttules and septa, hyaline, 45-70 x l - 2 . 5 y i .  On dead twigs of Lonicera involucratum Banks,  Harrison Lake (H-1971).  0. porphyrogonus  (Tode) Sacc. (Plate IV, fig.35)  P e r i t h e c i a scattered or  gregarious, mostly oh p u r p l i s h s t a i n s , immersed, l a t e r erumpent, globosec o n i c a l , black, glabrous or covered with short hyphae, 300-400jx diameter; o s t i o l e c o n i c a l to c y l i n d r i c a l ; a s c i c y l i n d r i c a l , very short stalked,  120.  eight-spored, paraphysate, 140-165 x 4.5-8 jx; spores f i l i f o r m , p a r a l l e l , multinucleate, l a t e r multiseptate, yellowish, 130-160 x 1-2 J I .  On dead  herbaceous stems, Duncan (H-1970)•  0. Rostrupii Ferdin. & Winge  (Plate IV, fig.36) P e r i t h e c i a amphigenous,  immersed, beak erumpent, flattened-globose, 300-400 ji diameter, membranaceous, black; asci c y l i n d r i c a l , s e s s i l e , eight-spored, paraphyaate, 125165 x 14-16 jx; spores f i l i f o i m , hyaline, p a r a l l e l , multiguttulate, then 6-7-septate, constricted at t h i r d and fourth septa, 115-135 x  1 - 4 O n  leaves of Prunella v u l g a r i s L.,, P a t r i c i a Bay, l e g . W.Jones (H-436 , 0-15328, V-2161), North Saanich, l e g . B.Lawson (H-63, H-613), P a r k s v i l l e , l e g . W. Jones ($1-19994).  0. rudis (Bie3S.) Rehm  (Plate IV, fig.37) P e r i t h e c i a forming small groups,  immersed, conic-papillate o s t i o l e erumpent, black, membranaceous, 320-640 jx diameter; asci c y l i n d r i c a l - c l a v a t e , short stalked, eight-spored, paraphysate, 135-210 x 9-10.5 jx; spores l y i n g p a r a l l e l , f i l i f o r m , with many septa, separating at these into short c y l i n d r i c a l , blunt-ended sections, 5-7 x hyaline to brownish.  3-3.5yu,  On stems of Phacelia leptosepala Rydb., Sage Pass,  7500', l e g . T.M.C.Taylor (H-1968). A s c i are longer i n t h i a c o l l e c t i o n than noted by Winter (140-150 u).  Phomatospora Sacc. Without stroma, p e r i t h e c i a immersed, occasionally erumpent, o s t i o l e short, c o n i c a l , globose, black, membranaceous; a s c i c y l i n d r i c a l , eightspored; spores one-celled, hyaline, small, uniseriate, e l l i p s o i d ; with or without paraphyses.  121. Spores l a r g e , 9-15 JX longi,.  .P. argyrostigma  Spores smaller, 7-9 jx long P. ?argyrostigma  P. therophila  (Berk.) Sacc.  (Plate IV, fig.38)  scattered, small, depressed-globose,  P e r i t h e c i a widely  immersed; a s c i c y l i n d r i c a l to  clavate, (45-) 60-75 x 9-10 (-18)^u, s e s s i l e , eight-spored; spores  boat-  shaped, hyaline, b i g u t t u l a t e , granular, 9-15 x 3-5 jx, occasionally one or two large spores i n an ascus, 28-33 x 6-7.5 jx»  On dead leaves of  Yucca sp., U.B.C. (H-1952); no measurements of a s c i or spores i s given i n any description, so that t h i s determination i s questionable.  P. therophila (Desm.) Sacc.  (Plate IV, fig.39)  P e r i t h e c i a black, barely  erumpent, membranaceous, globose, 200 (-300) jx diameter; a s c i c y l i n d r i c a l , 44-75 (-90) x 4.5-7 jx, eight-spored; paraphyses numerous, taper-pointed; spores o b l i q u e l y u n i s e r i a t e , hyaline, f u s o i d - e l l i p s o i d , one-celled, 7-9 x 2.5-4 fx*  On Juncus Drummondii Meyer, Mt. Apex, Penticton, l e g . J.W.Eastham  (H-1989).  Physalospora H i e s s i . P e r i t h e c i a Immersed, globose, with the conical o s t i o l e erumpent, black, smooth, membranaceous, to coriaceous; a s c i clavate, eight-spored; oblong, blunt-ended,  P. Miyabeana Fukashi  spores  one-celled, hyaline or l i g h t colored; paraphyses present.  (Plate IV, fig.40)  P e r i t h e c i a black, membranaceous,  single or gregarious, Immersed, o s t i o l e s erumpent through blackened  epidermis,  globose, 200^1 diameter; a s c i clavate, short stalked, 58.5-75 x 10-12jx£ spores greenish hyaline, one-celled, i r r e g u l a r l y b i s e r i a t e , e l l i p s o i d , guttulate, 14-17 x 4.5-6 jx*  Causing black canker or b l i g h t o f willow;  122. on S a l i x ?babylonica L.« Abbotsford, det. I.L.Conners  (0-6463, 0-6465);  S a l i x sp., Abbotsford (0-6709, V-229), Vancouver (V-2211, V-2212), Chiiliwack (V-233), Fraser Valley (0-7184, CPDS 1940). Physalosporasp.  Here are placed two c o l l e c t i o n s which have not been  identified satisfactorily. On Aplopappus l y a l l i i Gray, Garibaldi, l e g . J.Davidson (H-2001) f i g . 41):  (Plate IV,  P e r i t h e c i a black, membranaceous, amphigenous, globose, about  150 u diameter, o s t i o l e plane; asci clavate, short stalked, paraphysate, 52-60 x 10-12  u; spores yellowish, one-celled, b i s e r i a t e , ovate-oblong,  12-15 x 4.5-6  ji»  On Festuca a t t a i c a T r i n . , Telegraph Creek D i s t r i c t , l e g . W.H.Matthews (H-2002)  (Plate IV, f i g . 4 2 ) :  P e r i t h e c i a black membranaceous, immersed,  globose, 150 u diameter; a s c i obclavate, s e s s i l e , paraphysate, 36-57 x 9-14yi; spores greenish, biguttulate, e l l i p s o i d , one-celled, 12-14 x 6ji» P. obtusa (Schw.) Cke. i s recorded on apple (CPDS 1939, 1947, 1948)  from  North Saanich, Terrace, and Pemberton Meadows. According to Stevens (1935: 536-548) t h i s fungus i s not found i n the P a c i f i c Northwest.  No  c o l l e c t i o n s have been seen.  Pleospora Rab.  (Including Pyrenophora Fr., Clathrospora Rab., and Catharinia  Sacc.) P e r i t h e c i a inmersed at f i r s t , often becoming erumpent, globose to conical or depressed, black, membranaceous to coriaceous, smooth or with basal tomentum or a p i c a l setae or both, o s t i o l e short p a p i l l a t e ; a s c i c y l i n d r i c a l - c l a v a t e , w a l l thin or thick, usually thickened at the apex, eight-spored (occasionally l e s s than e i g h t ) ; spores oblong, e l l i p s o i d , fusoid,  123.  or f l a t t e n e d , muriformly septate, hyaline to yellow to dark brown; paraphyses or i n t e r t h e c i a l tissues, present. In accordance with Wehmeyer (1946, 1948, 1951), the c o l l e c t i o n s noted hare are n i l grouped under the genus Pleospora;  separation into  four genera i s d i f f i c u l t when a number o f c o l l e c t i o n s show v a r i a t i o n from, for instance, d i s t i n c t l y setose to tomentose or glabrous p e r i t h e c i a i n one  species.  P e r i t h e c i a t y p i c a l l y depressed-globose, with a basal tomentum or none; spores f l a t t e n e d , l o n g i t u d i n a l septa not extending into the end walls...... ..  Clathrospora  Spores three-septate. Spores l a r g e , 35-42jx long..  .P. macrospora  Spores smaller, up t o 36 jx l o n g . Spores (27-) 30-36 jx long..... Spore8 21-53 Spores more than  long  P. diplospora ,...P. permunda  three-septate.  Spores four- to six-septate. Spores 9-11 jx.wide  on the broad side, five-septate;  on Cirsium.  ....P. baccata  Spores 10 jx or wider.; four- to six-septate. Spores four-.to f i v e - ( t o six) septate, (18-) 2333 x 8-14 jx...  .P. pentamera  Spores five-septate, 27-35 x 15-16 U . . . . . . P . planispora Spores more than six-septate, large, with numerous l o n g i t u d i n a l  124.  P e r i t h e c i a variable, globose, conical, or depressed, with or without basal tomentum and setae; spores not flattened..-  .Pleospora and Pyrenophora  Spores three-septate.  P. trichostcma  Spores more than three-septate. Spores four- to seven-septate. Spores always flye-septate. Longitudinal septum through a l l cells..... .P. i n f e c t o r i a f  Longitudinal septum never through end c e l l s . P. vulgaris Spores four- to seven-septate. Spores four- to six-septate, upper h a l f globose, one- to two-septate, lower h a l f longer, and narrower, two- to three-septate; p e r i t h e c i a very small, c o n i c a l , glabrous...  P. o l l g a s c a  Spores not as above, f i v e - to seven-septate; p e r i thecia l a r g e r , mostly tomentose or setose. P e r i t h e c i a small with a p i c a l crown of short setae and no basal tomentum...P. ambigua var. O r a n d a l l l i P e r i t h e c i a l a r g e r , globose to depressed, basal tomentum present, often setae also. Spores fusoid-oblong, usually f i v e septate  .P. angustata  Spores oblong-ellipsoid, ends obtuse, f i v e - to 3even-septafce........P. Gompositarum Spores seven-septate or more; Spores mostly seven-septate. P e r i t h e c i a glabrous or tomentose at base.  125.  On Gramineae and  Cyperaceae.  Spores fusoid-oblong.. •  .P. a r c t i e a  Spores ellipsoid-oblong, ends obtuse......... .P. discors On other p l a n t s . P e r i t h e c i a small, spores broad, 1 4 - 2 5 w i d e . P. Balsamorrhizae P e r i t h e c i a l a r g e r , spores narrower. Spores yellow-brown, nearly straight, u n i - to b i s e r i a t e  .P. herbarum  Spores darker brown, i n e q u i l a t e r a l , mostly b i s e r i a t e P. herbarum T a r . o c c i d e n t a l i s P e r i t h e c i a tomentose or setose or both. P e r i t h e c i a flattened-globose, tomentose and setose; spores 20-30 x 9-12 y i . . . .  ...P. h e l v e t i c a  P e r i t h e c i a globose t o pyriform, more d e f i n i t e l y setose; spores l a r g e r , 24.5-37 x 10*5-18ji. ..P.  Tragacanthae  Spores mostly more than seven-septate. P e r i t h e c i a d e f i n i t e l y setose, usually globose to conical  P. comata  P e r i t h e c i a tomentose, with occasional setae, globose to depressed. %  Spores 30-46 x 1 5 - 1 9 y i , septate.......  (sevenfe) eight- to nine........P. coloradehsis  126 Spores l a r g e r , 33-70 ji. long, eight- to fourteenseptate• Spores 33-58 (-62)  x 13-25 jx eight- to t  ten-septate....... Spores 43-81  x 16-30 ji,  septate at maturity  .P. njegusensis twelve- to fourteen.....P. asymmetries  P. ambigua,(Berl.fr Bres.) Wefam. var. C r a n d a l l l i (E11.& Ev.) f i g . 43)  Wehm.  (Plate IV,  P e r i t h e c i a 100-200 jx diameter, globose to pyriform, usually on  leaves, p e t i o l e s or small stems, with an a p i c a l crown of short,  stout,  erect pointed setae and usually no basal tomenturn; a s c i clavate, with a thickened w a l l and a claw-like base, (60-)  75-105 x 17-23  (-27) ji; spores  b i s e r i a t e or becoming u n i s e r i a t e , oblong-ellipsoid, red-brown, 5-7-septate, s t r a i g h t or s l i g h t l y i n e q u i l a t e r a l , s l i g h t l y asymmetric, tapered below, with a single l o n g i t u d i n a l septum, ends broadly rounded, 19.5-26.5 x (8.5)  9-12.5^i.  On leaves of Arenaria obtusiiobs. (Bydb.) Fern., Cathedral Lakes (H-2067).  P. angustata Wehm. (Plate IV, fig.44)  P e r i t h e c i a 150-300^1 diameter, globose  or depressed, immersed, then erumpent, tomentose and setose; a s c i clavate to c y l i n d r i c a l - c l a v a t e , walls somewhat thickened, base claw-like, 75-115 x 11-23 ji; spores overlapping uniseriate to b i s e r i a t e , fusoid- to clavatee l l i p s o i d , 5-7-septate, yellow- to reddish-brown, straighr or s l i g h t l y i n e q u i l a t e r a l , one l o n g i t u d i n a l septum, (16-)  19-26  x 7-9 (-10) jx»  On  Artemisia v u l g a r i s L. var. d i s c o l o r (Dougl.) Peck, Cathedral Lakes (H-2152); G a i l l a r d i a a r i s t a t e Pursh., Gray Creek, Kootenay Lakes, l e g . J.W.Eastham (H-2214) o  P. a r c t i e a Karst.  (Plate IV, fig.45)  P e r i t h e c i a immersed, s l i g h t l y erumpent,  127. globose, black, very short tomentose, 200-300 jx diameter; asci clavate, short-stalked, 135-200 x 24-50 jx; spores b i s e r i a t e , fusoid-pblong, s l i g h t l y i n e q u i l a t e r a l , 7-septate, constricted a t the central septum, yellowishbrown, 36-50 x 13-18 jx. On Poa g r a c i l l i m a Vasey, Garibaldi, l e g . J.W. Eastham (H-2075)j Trisetum spicatum (L.) E i c h t . , Garibaldi, l e g . J.W. Eastham (H-2322).  P. asymmetries Wehm.  (Plate 17, fig.46)  P e r i t h e c i a 250-500 jx diameter,  globose to depressed, erumpent as p a p i l l a t e o s t i o l e s , smooth or tomentose at the base, i n a few cases setose; a s c i clavate* becoming elongate, a p i c a l wall thickened, base claw-like, 170-250 (-350) x (20-) 40-60^i; spores b i s e r i a t e , c y l i n d r i c a l - e l l i p s o i d , ypllow-brown to dark brown, 8 ^ - s e p t a t e , soon becoming 12-14-septate, constricted at central primary septum, s t r a i g h t , strongly asymmetric, broader and shorter above, ends broadly rounded or abruptly tapered, 2-4 longitudinal septa, 43-81 x 16-50 jx.  On A c h i l l e a  lanulosa Nutt., Cathedral Lakes (H-2277); Antennaria media Greene, Cathedral Lakes (H-2290); Aplopappus Brandegel Gray, Cathedral Lakes (H-l957); Artemisia longepedunculata Rydb., Mt. Baldy, Chua Chua, l e g . 7.C.Brink (H-2506J; Astragalus glareosus Dougl.* Kaleden, l e g . E.Milley (H-2249); Draba stenoloba Ledeb., Mt. Brent, Penticton, l e g . J.W.Eastham (H-2019); Erigeron sp., Cathedral Lakes (H-2270); Lupinus 1 a t i f o l i u s Agh. var. subalpinus (Piper & Robins.) C.P.Sm.  Cathedral Lakes (H-2162); Ranunculus  E s c h s c h o l t z i i Schlecht, Tenquille Lake, Pemberton, l e g . W.Taylor (H-2291), Kokanee, l e g . J.W.Eastham (H-2292), Garibaldi, l e g . J.Davidson (H-2295); V i o l a adunca Smith, Sooke, l e g . J.yf.Eastham (H-2202).  P. (Clathrospora) baccata E H .  (Plate IV, fig.47)  P e r i t h e c i a scattered,  depressed-globose, p a p i l l a t e , immersed at f i r s t , becoming s u p e r f i c i a l ,  128. tomeifetose at base, 300-500^1 diameter;  a s c i clavate, short stalked, 75-,  120 x 15-24 jx; spores p a r t i a l l y b i s e r i a t e , oblong-ovate, 5-septate, 1-2 longitudinal septa, 20-30 x 10-14 x 9 jx.  On Cirsium arvense (L.) Scop.,  Princeton (H-2111, H-2110); C. lanceolatum (L.) Scop., Vancouver Island, leg.  J.Macoun (0M-926).  P. Balsamorrhizae Tracy & Earle  (Plate I f , fig.43)  P e r i t h e c i a small,  100-250jx diameter, globose, f i n a l l y somewhat flattened, o s t i o l e minute p a p i l l a t e , tomentose; asci broad ciavate, thick-walled, with a daw-like base, 115-175 x 35-65 jx;  spores b i - to t r i s e r i a t e , oblong-ellipsoid,  straight, ends bluntj broad, constricted at the central septum, 7- (8-) septate, yellow-brown 14-25 u. leg.  at f i r s t , becoming black brown to opaque, 33-63 x  On Erigeron f i l i f o l i u s  (Hook.) Nutt., Anarchist Mt., Osoyoos,  J.W.Eastham (H-2300); Solidago decumbens Greene, Sinkut Mt., Vander-  hoof, leg.. J.W.Eastham (H-2276).  P. coloradensis E l l . & Ev.  (Piate IV, fig.49) P e r i t h e c i a 200-400 jx  diameter, scattered, depressed-globose, tomentose; a s c i broad clavate, a p i c a l wall thickened, base claw-like, 90-140 x 20-42jx;  spores b i s e r i a t e ,  oblong-ellipsoid, (7-) 8-9-septate, dark yellow-brown to dark red-brown, mostly asymmetric, broader and shorter above, narrower and longer below, constricted at central septum, ends broadly rounded, lower end of spore commonly with i r r e g u l a r oblique septation, 30-44 (-46)  x 14-19'ji.  On  Anemone m u l t i f i d a P o i r . a f f i n i s hudsoniana, Bennett, l e g . B.Boivin (H-2i29); Astragalus campsstris, Armstrong, l e g . E.Wilson (H-2285); Phacelia leucophylla SEorr .f  Vernon (H-l 940) •  129. P. oomata Niessl  (P. o l l l a t a E l l . 1  (Plate IV, fig,50, Plate VI, flg.43)  P e r i t h e c i a 100-350 p diameter, scattered, globose to conical, immersed at f i r s t , often erumpent-stiperfioial, with a crown o f brown, pointed setae at the apex; a s c i broad.clavate, thiols walled, base plaw-like,99tii200 x 26-35 jxi spores b i s e r i a t e , oblong-ellipsoid, dark yellow- brown to dark red-brown, 7-8-9-.septe.te, s t r a i g h t or s l i g h t l y carved, mostly asymmetric, narrower and more tapered below, ends broadly^roonded, constricted at the middle and sometimes at the other septa, 28-50 x 13-18  On Anemone  fitobosa Nutt., between Redstone and Chelquoit Lakes, leg. J.W.Eastham (H-2128); A; multi f Ida  P o i r . a f f i n i s hudsoniana. Bennett, leg.  B.Boivin  (H-2129); Aulopappus I y a l l l l Gray. Garibaldi, l e g . J.Davidson (H-2001)j Arabia oanesoens Nutt., Snmmerland, l e g . G.E.Woolliams (H-1683); Artemisia b o r e a l i a P a l l . . Sinkut ffit., Vanderhoof, leg.  J.W.Eastham (H-2304J;  C a s t i l l e J a minlata Dougl.. Cathedral Lakes (H-2163); Chrysopsis v l l l o s a (Pursh.) Butt. var. hispida (Nutt. ) Gray, Fairmont Hot Springs, l e g .  J.W.  Eastham (H-2117); E r i g e r o n l i n e a r i s (Hook.) piper, Tranqaille, l e g . T.M..Q. •Taylor (H-1990); E . lonchophyllus Hook.. Windermere, l e g . JiW.Eastham (H-2212); Erigeron sp^. Cathedral Lakes (BV.2274); Oxytropls alp loo l a  (Rydb.)  Jones. Sage Pass, l e g . T.M.C. Taylor (H-2066); Phacelia serioea Gray; G a r i b a l d i , leg. W.Cottle, (H-2254, H-2253, H-2198); Phlox d i f f u s a Benth., G a r i b a l d i , leg. W..Cottle (H-1816), Mt. Copley, l e g . D.Elvidge (H-2133); P. Donglasll Hook.. The Lions, l e g . F« Perry (B-2130); P  ft  r l g M a Benth.j  Elko, l e g ; J.W.Eastham (H-2305); P. speolosa Pursh.. Penticton. l e g . J.W.Eastham (BU2132); Polemonlum coeraleom L. sabsp^ Occident ale Davids., M i l e 107, Alaska Highway, leg.  (Greene)  M.Y.Williams (H-2135}; P. pnloherrlmam  Hook., Kimberley, l e g . j.W.Easthsn (H-2328); Pw vlsoosnm Nntt>.  Garibaldi,  130*  l e g . W.Taylor (H-2136); Pot en t i l l a d l s s e c t a Hutt.. Garibaldi, l e g . J . Davidson (H-2071)$ p y d l v e r s i f o l l a lehm,, Kennoo Mining Gamp, l e g . G.A.IToel (H-2003J; G a r i b a l d i , l e g . J.Davidson (H-2071aJ$ S i l e n e Douglas!1 Hook,, Cathedral Lakes (H-2148)$ Stenanthlum oocidentale Gray. Mt.Stephen, F i e l d , l e g . J .M.Fogg (H-2323).  P, Composltarum E a r l e (Plate 17, f i g . 51) P e r i the oia scattered, globose to depressed, o s t i o l e mi nut e p a p i l l a t e , tomentose a t base and sometimes with a few a p i c a l spines, 100.350 x 100-250 n« a s c i stout elevate, t h i c k walled, with a claw-like base, 65-135 z 14-23 jt\  spores b i s e r i a t e , oblong.ellipsoid,  ends rounded, obtuse, 5~7 septate, with usually one l o n g i t u d i n a l septum i n T  each o e l l , including the end c e l l s , 19.5-28 x B-12.5 j i , dark brown.  On  A a u i l e g i a fbrmosa Fisoh,, Tenquille Lake, Pemberton, l e g . W.Taylor (H-2261J; Draba Paysonli Macfcr. v a r . T r e l e a s i l (Schula) Hitchc., Rainbow E t . , B e l l a Coo l a , l e g . F.Perry (H-2265); Erigeron oorymbosus ISutt.. Eamloops, l e g . E . W.Tisdale (H-2211); E. f i l i f o l i u s (Hook.) Hutt., Anarchist Mt,, Osoyoos, l e g . J.WiEastham  (H-2g00h E . pumllus subsp. intermedina  r  Tobaoco P l a i n s ,  leg, J.W.Eastham (H-2213); E . speclosua DQ. var. maoranthus (Hutt.) Cronq. Vernon (H-2064); I r i s germanloa L., Dunoan (H-1993); Seneolo paupercuius Michx,, Golden, l e g . J.W.Eastham (H-2299)j Stenanthium Occidentale Gray, Mt. Stephen, F i e l d , l e g . J.M.Fogg (H-2323).  P. (Clathrospora) dlplospora E l l . & Ev.  (Plate IV* fig.52)  Peritheeia  scattered, depressed-spherical, 250-600 p. diameter, with a r a d i a t i n g basal tomentum; asoi clavate, t h i c k  walled, with a claw-like base, 125-175 x  26-40 JL\ spores b i s e r i a t e , ovoid, rhomboid-ellipsoid, olathrate-flattened, 3-septate, c e n t r a l c e l l s with a l o n g i t u d i n a l septum, end oelIs without.  131. c y l i n d r i c a l to fusoid i n edge view, 30-43 x 16-24 z 12.5-15 n.  On phlox  l o n g l t o l l a Hutt.. Penticton (H-2112U PWwdiseora (Mont.) Ces. & de Hot*  (Plate V, fig.1)  Peritheoia sparse,  globose, 100-120 JL diameter, tomentose a t base, immersed; a s c i broadolavate, short stalked, curved, 120-140 z 27-32 p:; spores b i s e r i a t e , oblong-, ovoid, lower h a l f narrower, straight to i n e q u i l a t e r a l , 7-septate, 1-4l o n g i t u d i n a l l y septate, yellpw-browa, constricted at the central septum, 27-35 (-45) x 1&-16 jx»  On Carex Hoodil Boott.. Fort Fraser, l e g , J.W,  Eastham (H-2118); Luzula oampestrls (L.) D C ,  Mt, Seymour (H-21Q6J; Poa  ampla Merr.. E l k and Kootenay Rivers, l e g , J.W.Eastham (H-2080); P. oonflnls Vasey, Saanich S p i t , l e g . J.W.Eastham (H-2228); Gramineae indet., Mt. Seymour (H-2095)*  P.. (Clathrospora) Elynae (Rab.) Ces. & de Hot.  (Plate V, f i g , 2 )  Peritheoia  immersed, depressed^globose, o s t i o l e minute p a p i l l a t e , 260 jx diameter; a s c i broad-clavate, abruptly short stalked, 108-150 z 35-51 J * ; spores b i - t o t r i s e r i a t e , oblong to broad e l l i p s o i d , dark brown, 7-8-septate, 3-5-longitudinally septate, 45-60 z 18-27 u.  On Carex atratiformls B r i t . ,  Garibaldi, l e g . J.Davidson (H-2054); ^nzula sploata (L,) D C ,  Dunn Peak,  Chua Chua, l e g , E.W.Tisdale (H-2124). Pi h e l v e t i c a U i e s s l  (P. ohrysospora N i e s s l )  (Plate V, fig.3)  150-400 ji diameter, scattered, globose to depressed, immersed  Peritheoia at f i r s t ,  l a t e r s l i g h t l y erumpent, tomentose below, setose above; asci clavate to broad-olavate, w a l l somewhat thickened, base olaw-like, 80-140 z 17-24  (-28)  spores b i s e r i a t e , oblong-ellipsold, yellow-brown to dark red-brown, 5- to mostly 7-septate, straight or s l i g h t l y curved, often assymmetrlo with a  132* narrower tapered lower portion, broadly rounded a t the ends, more o r ISSB constrioted a t the septa, with 2-3 longitudinal septa, 20-30 x 9-12,5 (-14) ju  On Agropyron traohloanlnm var, u n i l a t e r a l e (Cassidy) Malta, Fairmont  Hot Springs, l e g . J.W.Eastham (H-2140) ; Aaaphalls  margarltaoea (L.) D.& H.,  Mt. Qaven, Flagstone, l e g . F, B.Peterson (H-2303)t Draba alpina L.. Garibaldi, l e g . J.Davidson (H-2294); D. Pay so n i l Macbr., Cathedral Lakes (H-2157); Poa a l p i n a L.. Hudson Bay Mt., Smithers, l e g . J.W.Eastham (H-2231); P; glauoa a h l . . Mou^t Rowe, l e g . T«M»C.Taylor (H-2070); v  P. herbarum (Pers. ) Rab;  (Plate Y, fig.4)  Peritheoia scattered, depressed-  globose, o s t i o l e p a p i l l a t e ; 250.400 z 150-300 n, somewhat collapsed with age, immersed; asci clavate, t h i c k walled, with a claw-like base, 90-165 (-215) z 24-28 (-40) n; spores 7-septate, with 1-2 longitudinal septa; p a r t i a l l y u n i s e r i a t e , yellow-brown, ovoid«oblpng, rounded a t the ends; constricted at the central septum and s l i g h t l y a t the others, 28-45 z 14-18 j i .  On  A l l i u m Gepa L», Duncan (H-2256), Agassiz (CPDS 1944); Aqnllegia formosa Flsch., Duncan (H-2182); Armerla maritlma W i l l i . . U.B.C. (H-2169); Bras s i oa spp;,  Duncan (H-2257); Campanula SP.. Dunoan (H«i2099J H-1996, H-2330);  Qentaurea Jaoea; U.B.C. (£-2176}; Qlohorlum Intybug L.. Salmon Arm (H-2259); Cirsium sp.. Saanichton (H-1969); D i g i t a l i s sp», U.B.C, (H-2258); Erigeron sp.,  Saanichton (H-2315); Hieraolum an ran t l a cram L., U.B.C. (ii-2282); I r i s  germanloa L«. Dunoan, (H-1993); Lathyrqs odoratus L>. Vancouver Island, l e g . J.Macoun (0M unnumbered, March 11, 1915), Duncan (H-2181); Lupinus sp;; U.B.C. (H-1995), Vancouver Island, l e g . J.Macoun (OM-916); Lychnis Coronaria Dear., Duncan (H-2179); Oenothera biennis L., U.B.C. (H-1992), Duncan (H-I994)f Oenothera sp., U.B.C. (H-2113); Pisnm sativum L«, Dunoan (H-2177), Cobble H i l l (CPDS 1948); Primula sp^, U.B.C. (H-2170); Rumez sp;, Saanichton (H-21I4);  133. Sanicula o r a s s i o a u l i s Poepp., Vancouver Island, l e g . J.Macoun (OM unnumbered, July 17, 1916,  OMU586); Taneoetum vulgare L., U.B.C. (H-2171); T r i f o l i u m  sp.,  Sidney, l e g . J.Macoun (OM-370); L i l i a c e a e indet*, Duncan (H-2295); herbaceous stems, Duncan (H-2255), North Vanoouver (H-2092). P. herbarum (Pers, ) Rab,  var, occidental i s Wehm. . f P l a t e V, f i g , 5)  Differing  from the species i n the darker, red-brown spores vfalch are more i n e q u i l a t e r a l , more consistently b i s e r i a t e i n shorter a s c i , a s c i 80-145 x 20-28 (-35) spores 26-35 x 11*16  ju  p.;  On A c h i l l e a M i l l e f o l i u m L., Mt. Caven, Flagstone,  leg, F*B.Peterson (H-2279); Antennarla anaphaloides var, genulna Boivin, Elko, l e g , J.W.Eastham (H-2017)t A. dimorpha T.&  G,  f  Summerland, leg*  G.E.  Wqolliams (H-1682); A, umbrinella Rvdb.. M e r r i t t , l e g . T.M.G.Taylor (H-2016)j Aster sp., Salmon Arm  (H-2289); Hleraoeum Albertinum Farr., Mt*  l e g . F.B.Petereon (H-2199); Penstemon tolmiei Hook*. Mt*  Brent,  Caven, Flagstone Penticton,  l e g . J.W .Eastham (H-2201 j ; To f i e l d i a coccinea Rich.. Fort Nelson, A l oan Highway, l e g . M.Y.Willlams (H-2245).  P* i n f e c t o r i a F c k l . ,  (Plate V, fig,6)  Peritheoia seriate along culms, r a r e l y  s o l i t a r y , erumpent, spherical, black, around 350 p. diameter; a s c i clavate to o y l i n d r i c a l - o l a v a t e , short stalked, 8 4 r l 3 8 x 12-17^B; spores u n i s e r i a t e , occasionally  subbiseriate, e l l i p s o i d to OMpid-oblong, 5-septate, with one  longitudinal septum, constricted at the p a n t r a l septum, golden brown becoming darker, 18-26 P*  x 7-12  u*  On Gramineae indet,, Saaniohton (H-2317).  (Olatfarospora) maoroapora Schroet*  (Plate V, fig*7)  Peritheoia gregarious,  globose-depressed, 250-300 n diameter, blaok, erumpent, thick walled, s l i g h t l y tomentose; asoi broad olavate, attenuated to a short stalk, 135-170 x 24-37 (-45)  a; spores i r r e g u l a r , e l l i p s o i d , 3-septate, with a longitudinal septum  through the middle c e l l s , flattened, yellow-brown, 35-45 x 13-31  x 9-12ju  134. On Arctagrostis l a t i f o l i a  (R.Br.) Griseb., Telegraph Creek D i s t r i c t , l e g .  W.H.Matthews (H-2021); Elymus innovatus Beal., Kechika River north of S i f t o n Pass, lego N.C.Stewart (H-2039).  P. njegusensis Bubo  (Plate V, fig.8)  P e r i t h e c i a (150-) 200-400 jx diameter  globose or depressed,glabrous, tomentose o r even setose; walls rather t h i c k ; a 3 c i broad-clavate, thick-walled, with a claw-like base, 105-220 x 30-55 jx\ spores b i s e r i a t e , oblong-ellipsoid, dark yellow-brown to very dark red-brown 8-10-septate, mostly s t r a i g h t , r a r e l y i n e q u i l a t e r a l , mostly asymmetric with a broader, shorter upper and a longer, narrower lower portion, constricted at the central septum and sometimes at the other septa, ends broadly rounded l o n g i t u d i n a l septa one to three, 33-58 (-62) x 13-25 jx»  On Brigeron com-  positns Pursh., var. glabratua Macoun, Bennett, l e g . J.M.Gillett (H-2210), Okanagan Landing, l e g . E.Wilson (H-2209),  P. oligasca Bub.  (Plate 7, f i g . 9 , Plate VI, fig.44)  Perithecia thiokly  scattered, minute, 70-150 jx diameter, conical-globose, with a comparatively l a r g e , c o n i c a l , often curved, beak-like o s t i o l e , soon erumpent s u p e r f i c i a l ; a s c i few, at f i r s t broad saccate, almost globose, with a thickened a p i c a l wall and a claw-like base, becoming broad clavate, 45-70 x 30-60 jx\  spores  b i - to t r i s e r i a t e , oblong-ellipsoid, brown, 4- to 6-septate, constricted at the second or t h i r d septum, upper h a l f short, stout, globose, and 1- to 2septate, lower h a l f longer, narrower, oblong, and 2- to 3-septate, with one, or r a r e l y two l o n g i t u d i n a l septa i n a l l but the end c e l l s , (18-) 25-36 ii long, 9-14 jx wide i n the upper, and 8-11 jx wide i n the lower h a l f .  Many o f  the c o l l e c t i o n s l i s t e d here are immature, and are determined as t h i s species on the basis o f p e r i t h e c i a l size and shape and ascus shape.  On Antennaria  anaphaloldes Rydb. var. genuine Bolvin, ELko, l e g . J.W.Eastham (H-2017);  135. A» dimorpha T. & G., Summerland, l e g . G.E.Woolliams (H-1682); A. Howell i i Greene, Williams Lake, Cariboo, l e g . E.W.Tisdale (H-2015); A. mlcrophylla Rydb., B i g Creek, l e g . C.Bertrand (H-2013); A. rosea Greene, S t . Mary's Lake, Klmberley, l e g . J.W.Eastham (H-2014); A. umbrinella Rydb., M e r r i t t , l e g . T.M.C.Taylor (H-2016); Dryas octopetela L., Cathedral Lakes (H-202?), Mt. Baldy, Chua Chua, l e g . E.W.Tisdale (H-2020); Erjogonum subalpinum Greene, Cathedral Lakes (H-2028); B. umbellatum Torr. var. maJus Benth., Mt, Apex, Penticton, l e g . J.W.Eastham (H-2030); Geum trifitorum Pursh., Chelquoit Lake, C h i l c o t i n , l e g . J.W.Eastham (H-2020); P o t e n t i l l a dissects Nutt., G a r i b a l d i , l e g . J.Davidson (H-2Q71); P. d i v e r s i f o l i a Lehm., Kennco Mining Camp, l e g . G.A.Noel (H-2003); P. emarginata Pursh., G a r i b a l d i , l e g . J.W.Eastham (H-2G73); Seneclo canus Hook., Cathedral Lakes (H-2072),  P. (dathrospora) pentamera Karat.  (Plate V, fig.10)  P e r i t h e c i a immersed,  l a t e r erumpent, subglobose t o depressed, o s t i o l e conical and depressed, glabrous or tomentose at the base, 150-250  diameter; asci clavate, short-  stalked, 65-150 x 24-30 j i ; 3pores b i s e r i a t e , o v o i d - e l l i p s o i d to rhomboid, flattened, 4-5-(6-) septate, l o n g i t u d i n a l septum i n the middle c e l l s , 1534 x 11-15 x 7-10 JL.  On Agropyron latiglume (Scribn. & Sm.)  Rydb., Sage  Pass, l e g . T.M.C.Taylor (H-2319), G a r i b a l d i , l e g . J.W.Eastham (H-2141); Agrostis Rossae Vasey, G a r i b a l d i , l e g . J.W.Eastham (H-2058); Andropogon acoparius MIchx., Fairmont Hot Springs, l e g . J.W.Eastham (H-2267); Calamagrostis purpurascens R.Br., Chasm, Clinton, l e g . J.W.Eastham (H*2087); Carex aperta Boott., M i r r o r Lake, Kaslo, l e g . J.W.Eastham (H-2260); Oryzopsis hymenoides (R.& S.) flicker, Penticton, l e g . J.W.Eastham (H-2234)| Poa compressa L., F l y i n g V Ranch, Cariboo, l e g . J.W.Eastham (H-2084; P. i n t e r i o r Rydb., McDonald's Landing, Francois Lake, l e g . J.W.Eastham  136 (H-2035); S t i p a comata T r i n . & Rupr»» Cranbrook, l e g . J.W.Eastham  (H-2222);  Gramineae indet., Kamloops, l e g . J.Macoun (OM-154).  P. (Clathrospora) permunda (Cke.) Sacc.  (Plate 7, f i g . l l )  Perithecia  t h i c k l y scattered,immersed, f i n a l l y s u p e r f i c i a l , flattened-spherical, o s t i o l e minute, 200-400 ji diameter, collapsing pezizoid, saucer-shaped with age, surrounded by a r a d i a t i n g brown tomentum;,asci broadly clavate, with a thickened wall and claw-like base, 75-115 (-150) x 19-30 yi; spores b i s e r i a t e , broadly rhomboid-fusoid to c l a v a t e - e l l i p s o i d 4n face view, 3septate, end cross walls often at an oblique Y" angle to the single central n  septum which does not extend into the end c e l l s , 21-33 x 10-12.5 (-15) x 7-10 u.  Oh Astragalus <campestris, Armstrong, l e g . E.Wilson  (H-2285);  Phlox l o n g j f o l i a Nutt., Mt. Munson, Penticton, l e g . J.W.Eastham  (H-2264);  P. r i g i d a Benth., Elko, l e g . J.W.Eastham (H-2305); Stipa comata T r i n . & Rupr., Dewdrop F l a t , l e g . V.C.Brink, det. F.Dickson  P. (Clathrospora) planlspora E l l .  (H-2026).  (Plate V , fig.12) P e r i t h e c i a scattered,  depressed-globose, s l i g h t l y tomentose at the base, about 300 ji diameter; a s c i clavate, thick walled, with a claw-like base, 78-100 (-120) x 22-26 ji; spores b i s e r i a t e , broadly rhomboid- to f u s o i d - e l l i p s o i d i n face view, f l a t tened, 5-septate, not constricted at the septa, with a single longitudinal septum through the central c e l l s , 27-35 x 13-16 x 9-11 yu. (L.)  On Arabis h i r s u t a  Scop. var. glabrata, Crawford Bay, l e g . H.Murray (H-2320); A. H o l b o e l l i i  Hornem., Landsdown, Okanagan, l e g . E.Wilson  P. Tragacanthae Rab.  (Plate V , fig.13)  (H-2321).  P e r i t h e c i a 100-400 jx diameter,  globose, s l i g h t l y flattened, or conic-globose to pyriform with a conical o s t i o l e , immersed, l a t e r erumpent, setose about the o s t i o l e ; a s c i clavate  137 to stout-clavate, thick walled, base claw-like, 95-140 x (15-) 24-35 jx; spores b i s e r i a t e , oblong to c l a v a t e - e l l i p s o i d , yellow-brown to dark redbrown or almost opaque, 7-septate, usually straight, or i n e q u i l a t e r a l , or the lower portion curved, mostly asymmetric with the upper portion broader and shorter, broadly rounded at the ends, constricted at the middle and s l i g h t l y so or not constricted at the other septa, with two or more longitudinal septa, (24-) 36-37 x 11-16 (-18) jx.  On Anemone  Drummondii Wats., Cathedral Lakes (H-2158); Antennaria microphylla Rydb., Big  Greek, l e g . C.Bertrand (H-2013); Arenarla p a p i l l a r i s P o i r . var. n a r d i -  f o l i a , F i s h Lake, l e g . J.R.Anderson (H-2302); A. formosa Fisch., St. Mary's P r a i r i e , Cranbrook, l e g . J.W.Eastham (E-2023); A. obtusiloba (Rydb.) Fern., Mt. Brent, Penticton, l e g . J.W.Eastham (H-2215); A. verna var. propinqua Fern., Mt. Cheam, l e g . J.K.Henry (H-2217), Mt. Copley, l e g . D.Elvidge (H-2216); Draba praealta Greene, l e g . W.Taylor, Mt. Waddington (H-2266); Erigeron a c r i s L . var. asteroides (Andrz.) DC*, Fairmont Hot Springs, l e g . J.W. Eastham (H-2205).; E. aureus var. typicus Cronq., Mt. Brent, Penticton, leg. E.  J.W.Eastham (H-2207); E . compositus Pursh., Cathedral Lakes (H-2273);  compositus Pursh., var. glabratus Macoun, Garibaldi, l e g . J.Davidson  (H-2208); Linum L e w i s i i Pursh.,-Windermere, l e g . J.W.Eastham (H-2219); Lupinus L y a l l i i Gray, Cathedral Lakes (H-2272); Oxytropis C u s i c k i i Greenm., Cathedral Lakes (H-2271); P e d l c u l a r i s bracteosa Benth., Cathedral Lakes H-2036); Phacelia sericea Gray, Cathedral Lakes (H-2149).  P. triehostoma Air.) Ces. & de Not. P e r i t h e c i a 300-500 (-750) x 200-350 jx, s c l e r o t i o i d , usually rather t h i c k l y scattered, somewhat flattaned-spherical, strongly erumpent, often becoming s u p e r f i c i a l , o s t i o l e i n d e f i n i t e or flattenedp a p i l l a t e , with a few or many setae; a s c i stout clavate, with a much thickened  138. w a l l , base claw-like, 160-210 x 35-50jx; spores b i s e r i a t e , oblong-ellipsoid, 3-septate, l i g h t olive-brown, ends broadly rounded, constricted at a l l septa, often with a v e r t i c a l septum i n one or two c e l l s , 44-60 x 18-25jx. On Hordeum yulgare L., not seen  P. vulgaris N l e s s l  (CPDS 1935, as Ryrenophora t e r e s ) .  (Plate V, fig.14)  P e r i t h e c i a globose or depressed,  tomeiitose at base, 100-350 x 100-250 p.; a s c i stout clavate, w a l l thickened, base claw-like, 70-120 x 14-19jx;  spores b i s e r i a t e , oblong-to fusoid-  e l l i p s o i d , ends usually acute but sometimes obtuse, often i n e q u i l a t e r a l or s l i g h t l y curved, 3- then 5-septate, constricted aththe central septum, with a v e r t i c a l septum i n the central c e l l s , dark brown, 17.5-26 x 7-10 ji.  On  Balsamorrhiza sp., Vernon (H-2168); Erigeron s p i , Vernon (H-2288); Phacelia leucophylla Torr., Vernon (E-1941); L i l i a c e a e indet., Duncan (H-2295); dead herbaceous  stalks, Penticton (H-2281).  The following c o l l e c t i o n s have not been s a t i s f a c t o r i l y i d e n t i f i e d to species; descriptions are given as Pleospora spp. P. (Catharinia) sp. Brink (H-2070)  On Ledum grpenlandicum Oedr., BurnabyLake, l e g . V.C.  (Plate V, fig.15):  P e r i t h e c i a erumpent through greyish  spots, globose, 200 u diameter, black, membranaceous; a s c i clavate to ovate, apex thickened, 32-54 x 18-24 u; spores hyaline, 3-4-  (5-) septate, one  l o n g i t u d i n a l septum through most c e l l s , constricted at the septa, 15-21  x  6-7.5 jx» P. (Clathrospora) sp.  On Carex p r a e g r a o i l i s Boott., Ely ing U Ranch, Cariboo,  l e g . J.W.Eastham (H-2298) v i s i b l e as black  (Plate V, fig.16):  P e r i t h e c i a black, immersed,  dots through the epidermis, globose, s l i g h t l y tomentose,  210-240 u diameter, membranaceous; asci clavate, thick-walled, with a clawl i k e base, 126^-180 x 36-45 jx\ spores dark brown, 5-septate, constricted at  139.  the septa, ellipsoid-oblong, with one longitudinal septum through middle c e l l s , 30-45 x 12-18^1. On Poa r u p i c o l a Nash, Sage Pass, l e g . T.M.C.Taylor (H-2078) 17):  (Plate 7, f i g .  P e r i t h e c i a black, membranaceous, globose, about 180 jx diameter; asci  clavate, short-stalked, about 135 x 27 u; spores 8-septate, with l-2nlongi t u d i n a l septa, through most c e l l s , reddish to dark brown, flattened, 3037.5 x 12-15 x 9-12 jx, P;_ sp. On Agrostis humilis 7asey, G a r i b a l d i , l e g . J.Davidson (H-2310) 7, f i g . 1 8 ) :  (Plate  P e r i t h e c i a black, membranaceous, immersed, globose, 180-250 p  diameter; a s c i broad clavate, short stalked, 120-126 x 48-54 ^ i ;  spores very  l i g h t brown, b i s e r i a t e , 6-8-septate, with two l o n g i t u d i n a l septa, e l l i p s o i d oblong, upper portion somewhat broader and much shorter than lower, 33-50 x 13-21 jx. On G a i l l a r d i a a r i s t a t e Pursh., 7ernon (H-2312)  (Plate 7, fig.19):  Perithecia  immersed, globose, collapsing, short p a p i l l a t e , black, membranaceous, with r a d i a t i n g brown hyphae at base; a s c i clavate, short stalked, 90-105 x 13-15 ji; spores l i g h t to dark brown, fusoid, f l a t t e n e d on one side, 3-7-septate, constricted at the central septum, with one l o n g i t u d i n a l septum through middle c e l l s , 27-30 x 6-7.5 jx. 0 1 1  Oxytropis a l p i c o l a (Rydb.) Jones, Sage Pass, l e g . T.M.C.Taylor (H-2066)  (Plate 7, f i g . 2 0 ) :  P e r i t h e c i a black, p a r t i a l l y erumpent, membranaceous*  globose-depressed, 300-400  diameter; a s c i clavate, stalked, 135-180 x  24-30 jx; spores reddish-brown, p a r t i a l l y b i s e r i a t e , 6-7-septate, some with 10 septa, 1-2 longitudinal septa, none i n end c e l l s , f u s o i d - i n e q u i l a t e r a l , 30-36 x 12-15 jx. On Syringa vulgaris L., Duncan (H-2314)  (Plate 7, f i g . 2 1 ) :  Perithecia  black, coriaceous, globose, collapsing, p a p i l l a t e o s t i o l e erumpent through  140. epidermis, 330-430 x 230-300 p; a s c i clavate, 105 x 21 p; spores b i s e r i a t e , yellow-brown,  3-septate with 1-3 l o n g i t u d i n a l septa i n the central c e l l s ,  constricted at the septa, 21-27 x 10-14 ^a. P. (Pyrenophora) sp. On Agropyron trachycaulum (Link) Malta, Tenquille Lake, Pemberton, l e g . W.Taylor (H-2269) and on Trisetum spieatum (L.) Hicht.* Garibaldi, l e g . J.W.Eastham (H-2322)(Plate V, fig.22):  P e r i t h e c i a black,  coriaceous, with a greenish tinge, setose about the e s t i o l e , tomentose at base, erumpent, globose, 150-350 u diameter; a s c i clavate, short stalked, thick walled, 114-200 x 27-33 p; spores reddish or yellow-brown,  flattened,  7-11-septate, b i s e r i a t e , becoming uniseriate, 1-3 l o n g i t u d i n a l septa, 33-52 x 15-16.5 x 12-13 u.  Protoventuria B e r l . & Sacc. P e r i t h e c i a s u p e r f i c i a l , l a r g e , carbonaceous, f r a g i l e , globose-depressed, setose, o s t i o l e round, wide; a s c i oblong to e l l i p s o i d , abruptly narrowed at the base to a short stalk, eight-spored; paraphyses lacking or obsolete; spores uniseptate, constricted, c e l l s subequal, f u l i g i n o u s . P. Vancouverensis Dear.  P e r i t h e c i a scattered, carbonaceous, globose t o  conical, b r i s t l y , 120-150 p diameter; b r i s t l e s r i g i d , acuminate, pungent, 30-85 x 4-6 jx at base; a s c i f u s o i d - c y l i n d r i c a l , straight or curved, 45-55 x 14 ^ i ; paraphyses few, longer than a s c i ; spores f u l i g i n o u s , 2-3-seriate, uniseptate, 2-4-aucleate, upper c e l l wider, 14-15 x 4.5-5jx*  On bark of  dead Acer sp., Vancouver Island, August, 1916, John Macoun, 1003, not seen (Dearness 1917: 348).  Protoventuria sp. (|?late V, fig.23)  P e r i t h e c i a at f i r s t immersed, soon  becoming s u p e r f i c i a l , black, carbonaceous, globose-depressed, about 270 jx  141.  diameter, covered with numerous long dark brown septate hyphae, not spiny, of varying lengths; asci oblong, s l i g h t l y broader near the base, with a claw-like foot, thickened at the apex, curved, 75-90 x 13-15 j i ; paraphyses f i l i f o r m , short and i n d i s t i n c t ; spores l i g h t brown, uniseptate, upper c e l l broader and shorter* lower c e l l narrower; e l l i p s o i d , constricted at the septum, uniseriate above, b i s e r i a t e below, 18-24 x 7-8 jx.  On branches of  Lonicera involucratum Banks, Cathedral Lakes (H-2332)•  Venturis Ces. & de Not. P e r i t h e c i a s u p e r f i c i a l or erumpent, b r i s t l y , membranaceous, o s t i o l a t e ; a s c i s e s s i l e or short stalked, eight-spored; paraphyses present or lacking; spores oblong or o v o i d - e l l i p s o i d , u n i - or b i s e r i a t e , hyaline to yellowishbrown, two-celled.  P e r i t h e c i a immersed, usually remaining so. -Perithecia epiphyllous, grouped around brownish-green spots........... .V. Rumicis P e r i t h e c i a mostly hypophyllous, grouped or scattered. Spores small, 11-15 x 4-8 ji,  upper c e l l with a blunt  point; on Pyrus Malus.  V. inaequails  Spores l a r g e r , 14-20 x 5-8jx; both ends broadly rounded; on other species of Pyrus  V. pyriha  P e r i t h e c i a s u p e r f i c i a l , or with bases immersed. A s c i small, 35-50 x 7-10.5 jx. On Linnaea On Ledum.  .V. D i c k i e i ....  .V. Cassandrae  A s c i l a r g e r , over 50 ji long. Perithedia on spots on dead stalks of Gentiana sp  V. atriseda  142. P e r i t h e c i a scattered oa leaves. Spores greenish-hyaline, 12-14 x 3-5 a  .V. m y r t i l l i  Spores yellow-brown, (10-) 14-17 x 4-7 j i . . . . . . V . chlorospora  V. atriBeda Rehm  (Plate V, fig.24)  P e r i t h e c i a t h i c k l y grouped, f i r s t  immersed, l a t e r bases almost free, black, membranaceous, 96-120 ji; b r i s t l e s mostly around the o s t i o l e ; a s c i oblong, (37-) 50-60 x 9-12 u; paraphysate; spores b i s e r i a t e , two-celled, greenish, lower, c e l l shorter and narrower than the upper, (12-) 15-18 x 4-6 u.  On s t a l k s o f Gentiana calycosa Griseb.,  Wall Lake, l e g . T.M.C.Taylor (H-1933).  V. ?Cassandrae Pk.  (Plate V", fig.25)  P e r i t h e c i a brown-black, membranaceous,  bases immersed on greyish spots on leaves and branches, globose, 45-100 ii diameter, b r i s t l e s dark brown, fewj 45-60 x 4.5-6 ji; a s c i oblong to obclavate, s e s s i l e j bent, paraphysate, 30-48 x 7.5-10 jx\ spores hyaline to yellow, uniseptate, very s l i g h t l y constricted at the septum, upper c e l l a l i t t l e broader, granular, b i s e r i a t e , 9-12 x 3 ji» Oedr., Burnaby Lake, l e g . V.C.Brink, (H-2070).  On Ledum groenlandicum No species of Venturis i s  reported on Ledum; t h i s species comes most c l o s e l y to t h i s c o l l e c t i o n .  V. chlorospora (Ces.) Karst.  (Plate V, f i g . 2 6 ) - P e r i t h e c i a hypophyllous,  subglobose, 50-120 p. diameter, bases immersed or s u p e r f i c i a l , b r i s t l e s 40-50 x 4 ^ i ; a s c i c y l i n d r i c a l - c l a v a t e , aparaphysate, (37-) 45-70 x 9-14 ix\ spores uniseriate above, b i s e r i a t e below, two-celled, lower c e l l tapering, yellow-brown, (10-) 14-17 x 4-7 u.  V. D i c k i e i (B. & Br.) de Not.  Onleaves o f S a l i x sp., U.B.C. (H-1967)•  (Plate V, fig.27)  P e r i t h e c i a crowded i n  groups, s u p e r f i c i a l on a filamentous subiculum, epiphyllous, subglobose, 75-90 p. diameter; b r i s t l e s around the apex, 40-80 ji long; a s c i s e s s i l e ,  143. c y l i n d r i c a l - c l a v a t e , paraphysate, 35-50 x 7-10.5 u ; spores b i s e r i a t e , twoc e l l e d , olive-green, 10-14 x 3-4.5 jx.  On leaves of Linnaea borealis L . v a r .  americana (Forbes) Render, Canoe, l e g . G.E.Woolliams (H-158?). V. inaequalis (Cke.) Aderh.  P e r i t h e c i a immersed, grouped, usually hypo-  phyllous, globose, 90-160 p. diameter, with or without b r i s t l e s ; a s c i oblong, 40-70 x 9-12 j i ; spores yellow-green, unequally two-celled, upper c e l l shorter and broader with a blunt point, lower elongated, end rounded, u n i seriate above, b i s e r i a t e below, 11-15 x 4-8 jx.  On Pyrus Malus L., common  throughout the apple-growing region o f the province; the conidial stage, Fusicladium dendriticum (Wallr.) F c k l . , causing l e a f and f r u i t scab during the summer.  (S-14, S-49; CPDS 1926, 1928, 1929, 1930, 1931, 1932, 1933,  1934, 1935, 1936, 1937, 1938, 1939, 1940).  V. m y r t i l l i Cke.  (Plate 7, fig.28)  P e r i t h e c i a amphigenous, scattered or  gregarious, s u p e r f i c i a l , small, 90 u diameter, b r i s t l e s long or short, sometimes ones branched; a s c i oblong, 30-50 x 9-14 u ; spores b i s e r i a t e , ovoid-oblong, two-celled, not constricted, greenish-hyaline, 12-14 x 3-5 jx» On Cassiope S t e l l a r i a n a DC., BeaveryMtn., Hope, l e g . F.Perry (H-1936).  7. pyrina Aderh.  (Plate 7, fig.29)  P e r i t h e c i a mostly hypophyllous, grouped  or scattered, immersed, globose, 120-210 jx diameter, glabrous or with a few b r i s t l e s around the o s t i o l e ; asci oblong, 40-70 x 9-12 ji; above, b i s e r i a t e or crowded below, yellow-brown, l a r g e r and broader, ends rounded, 12-20 x 5-8 jx*  spores uniseriate  two-called, upper c e l l Common- on Pyrus communis L.,  throughout the province; U.B.C. (H-1932), Sidney, l e g . W.Jones (H-471). The c o n i d i a l stage, Fusicladium pyrinum (Lib.) F c k l . , forms brown l e a f and f r u i t spots during the summer.  (CPDS 1926, 1930, 1931, 1935, 1936, 1937,  144. 1938, 1939,  1940).  7. Rumicis (Desm.) Wint.  (Plate 7, fig.30)  P e r i t h e c i a i n small groups  around a brownish, green, or purple spot, epiphyllous, immersed, globose, 100-130 jx diameter* o s t i o l e ringed by divergent, deep brown b r i s t l e s ; a s c i oblong or clavate,• short stalked, 45-60 x 12-14jx; spores b i s e r i a t e , ovateoblong, ends rounded, two-celled, yellowish-brown, 12-15 x 4-7.5 y u  On  leaves o f Rumex A c e t o s e l l a L., Mt. Seymour (H-1934); Bennett, l e g . D.A. M i t c h e l l (H-1935).  7enturia sp.  The following four c o l l e c t i o n s could not be determined to  species nor could they be r e l a t e d to any described species.  Perithecia  are variable; a s c i large, 60-90 x (7-) 12-23jx; spores (12-)15-23 x 4.59  JX.  On Aplopappus Brandegei Gray, Cathedral Lakes (H-1937)  (Plate 7, f i g . 3 1 ) :  P e r i t h e c i a l a r g e , c o n i c a l , 200-250 jx diameter, with short, black b r i s t l e s above and long, brown, septate mycelium below; a s c i elongated, 60-90 (-120) x 12-15 pi paraphysate; spores greyish-brown, two-celled, upper  cell  smaller, c y l i n d r i c a l , ends rounded, b i s e r i a t e , f i n a l l y u n i s e r i a t e , 18-23 x 7-8 yi. On Astragalus Macounii Rydb., Cathedral Lakes (H-1938)  (Plate 7, f i g . 3 2 ) :  P e r i t h e c i a globose, 130-200 u diameter, b r i s t l e d above, mycelial threads at base; a s c i c y l i n d r i c a l , s e s s i l e , 60-75 x 7-8 jx\ spores e l l i p s o i d , yellowish, two-celled, upper c e l l l a r g e r , (12-) 15-18 x 4.5-7 y a . On Penstemon e l l i p t i c u s Coult. & Fisher, Mount Rowe, l e g . T.M.C.Taylor (H-1939)  (Plate V, f i g . 3 3 ) :  P e r i t h e c i a globose, 150-200 jx diameter,  o s t i o l e plane, covered with short spines, 45-60 x 3 y i with a bulbous base; a s c i obclavate, short stalked, paraphysate, 60-90 x 15-23 jx\ spores hyaline  145,  to l i g h t brown, two-celled, upper c e l l broader, uniseriate above, crowded or b i s e r i a t e below, 15-21 x 6-7.5 jx* On Phacelia leucophylla Torr., Vernon (H-1940)  (Plate V, fig,34):  Peri-  thecia globose, 130 u diameter, covered with s t i f f , brown b r i s t l e s , 84 x 4-5 j i , ends obtuse; asci oblong-clavate, short stalked, paraphysate, 60-64 x 16-17 jx; spores grey-brown, b i s e r i a t e , two-celled, constricted at septum, 15-23 x 7-9 jx; spore wall much darker than i n t e r i o r of spore.  18. Massariaceae P e r i t h e c i a without stroma, immersed and remaining covered, with only the small o s t i o l e breaking through the covering layer of plant tissues; carbonaceous or coriaceous, thick; asci clavate or c y l i n d r i c a l , eightspored; spores mostly surrounded by a gelatinous envelope, one- to severalc e l l e d or muriform, hyaline or brown; paraphyses present.  Spores several-celled, hyaline..*.. Spores several-celled, brown.  Massarina .-.  .Massaria  Massaria de Not. P e r i t h e c i a under the epidermis and remaining covered, globose, with only the short, blunt o s t i o l e erumpent, black, coriaceous; asci clavate, large, eight-spored; spores e l l i p s o i d , fusiform, or c y l i n d r i c a l , severalc e l l e d , hyaline, with a gelatinous covering} paraphyses present.  M.macrotheca (Rostr.) J.Lind  (Plate V, fig.35) P e r i t h e c i a globose-depressed,  under the epidermis, l a r g e , 200-270 ^1 diameter, black, coriaceous; asci c y l i n d r i c a l to obclavate, short stalked, thick-walled, 130-180 x 20-39 (-51) jx;  146.  paraphyses i n d i s t i n c t ; spores i r r e g u l a r - t r i s e r i a t e , at f i r s t hyaline, one-septate, with four cubical guttules, at maturity three-septate, l i g h t brown, c y l i n d r i c a l , obtusely rounded at the ends, with a narrow gelatinous envelope, 36-42 x 12-15jx*  On Carey sp,, Cathedral Lakes (H-1963).  Massarina Sacc. As Massaria, but spores remaining hyaline.  M. Dryadis Rostr.  (Plate 7, fig.36)  P e r i t h e c i a scattered,' epiphyllous,  globose-depressed,  black, small; a s c i b r o a d - c y l i n d r i c a l , 90-135 x 32-38  (-45) jx, paraphysate, f i v e - to eight-spored; spores b i s e r i a t e , threeseptate, hyaline, granular, oblong, constricted at the septa, surrounded by a broad gelatinous envelope, 33-42 x 15-20 j i . F i e l d , l e g . J.M.Fogg (H-1966).  On Dryas Drufflrnondii Rich.,  No measurements of spores were given i n  any descriptions seen.  ? Massarina ap.  (Plate V, fig.37)  P e r i t h e c i a black, membranaceous-  coriaceous, s u p e r f i c i a l , globose-flattened, p a p i l l a t e , 300-350 jx diameter, covered with numerous long brown h a i r s , massed and tangled; a s c i clavate, short stalked, eight-spored, thickened at the apex, 110-135 x 15-17 jx\ paraphyses numerous; spores hyaline to greenish, granular, long two-celled, becoming f o u r - c e l l e d , fusoid, surrounded by a gelatinous coating, 30-39 x 7.5-10 jx*  On P e d i c u l a r i a paddoensis Pennel, Sage Pass, 7500', l e g . T.M.C.  Taylor (H-2335)•  This c o l l e c t i o n has the h a i r y depressed perithecium of a  Herpotrichia; the spores i n t h e i r two-celled stage are quite similar to those of Didymella.  Tt i s placed i n Massarina because of the broad g e l -  atinous envelope surrounding the spores, and the great s i m i l a r i t y between i t and M. eburnea (Tul.) Sacc?, the differences between the two being the h a i r y p e r i t h e c i a and herbaceous habit of t h i s species.  147.  19. Gnomoniaceae Without stroma but i n some cases with a clypeus; p e r i t h e c i a immersed, free under the epidermis, with the long, beak-like o s t i o l e emergent; membranaceous or coriaceous; a s c i usually thickened at the apex, with a r e f r a c t i v e r i n g , c y l i n d r i c a l , clavate, or fusoid; spores hyaline, one- to several-celled, with or without appendages; paraphyses mostly l a c k i n g .  Spores one-celled. P e r i t h e c i a glabrous.  .Gnomoniella  P e r i t h e c i a pilose  .Glcmerella  Spores two-celled.  Gnomonia  Glomerella Schrenk & Spauld. P e r i t h e c i a cespitose, membranaceous, black-brown, beaked, l i g h t e r at the  apex, p i l o s e , seated on or p a r t i a l l y immersed i n a stroma; asci s e s s i l e ,  aparaphysate, clavate; spores eight, hyaline, oblong, continuous, s l i g h t l y curved, e l l i p s o i d , subbiseriate.  G. cingulata (Ston.) Schrenk & Spauld.  P e r i t h e c i a cespitose, surrounded  by subiculum of loose hyphae, black-brown, membranaceous, 250-330 jx long, 150 jx wide, o s t i o l e as a short constricted beak, conspicuous brown mycelium around the o s t i o l e ; a s c i aparaphysate, clavate, s e s s i l e , 64 x 14 n, eightspored; spores subbiseriate, hyaline, e l l i p t i c a l , s l i g h t l y curved, usually with one guttule i n the centre, 20-28 x 5-7 yi.  On Pyrus Malus L.,  not  seen (CPDS 1951).  Gnomonia Ces. & de Not. Stroma lacking, p e r i t h e c i a immersed with the elongated o s t i o l e erumpent,  148.  globose to globose-depressed,  membranaceous to coriaceous, black; asci  e l l i p s o i d to fusoid, thickened at the apex, with a r e f r a c t i v e r i n g , eightspored; aparaphysate; spores elongated, hyaline, two-celled. A s c i large, 54-105 x 12-18 jx. Spores 24-33 ji long. On stems, spores 7-10 jx wide  .G. depressula  On leaves, spores 4.5-6jx wide..  .........G. Caryae B . potentlllae  Spores 21-24 jx long. A s c i smaller, l e s s than 50 jx long.  Ostiole elongated, - u s u a l l y longer than the diameter of the perithecium. A s c i 45-50 x 7-8 jx  .G. veneta  A s c i 30-40 (-45) x 6-9 jx.  G. set ace a  Ostiole shorter, broader, length not reaching the diameter of the perithecium.  »G. Vepris  G. Caryae F r . A.Wolf (Plate V, fig.38) gregarious, depressedyglobose,  P e r i t h e c i a immersed, more or l e s s  200-300 jx wide, hypophyllous, o s t i o l e broad-  c y l i n d r i c a l , long, 300-400 x 35 jx,  curved; a s c i eight-spored, obovate,  54-75 x 12-18 u; spores hyaline, 4-guttulate, equally two-celled, 24-33 x 4.5-6 j i .  On leaves of Alnus oregona Nutt.,  G. depressula K a r s t .  (folate V, fig.39)  U.B.C. (H-1959) •  P e r i t h e c i a scattered or gregarious,  immersed, globose-collapsing, black, 450-530^1 diameter, o s t i o l e s erumpent, conoid, straight, broad, mostly shorter than p e r i t h e c i a ; a s c i s e s s i l e , fusoid, eight-spored, 84-110 x 15-18 jx\ spores obliquely b i s e r i a t e , fusoidoblong, s l i g h t l y curved, 2-4-guttulate, two-celled, s l i g h t l y constricted at  149. the septum, hyaline, 24-32 » 7-10 yi.  On dead stems of Rubus p a r v i f l o r u s  Nutt., U.B.C. (H-1973).  G. p o t e n t i l l a e sp.nov.  (Plate V* fig.41, Plate VI, fig.45)  Perithecia  immersed, black, coriaceous-membranaceous, globose, 330-400 jx diameter, o s t i o l e erumpent, straight or curved, 200 x 60 u; a s c i s e s s i l e or with a short, delicate s t a l k , thickened and with a r e f r a c t i v e r i n g at the apex, fusoid-clavate, eight-spored, 60-70 x 13-15 jx; spores hyaline,  equally  two-celled, not constricted at the septum, b i s e r i a t e or crowded-oblique, four-guttulate,  fusoid, i n e q u i l a t e r a l to s l i g h t l y curved, 21-24 x 6-7 jx»  Type: Herbarium of the University of B r i t i s h Columbia, on p e t i o l e s of P o t e n t i l l a p a l u s t r i s (L.) Scop., Stanley Park, Vancouver, B.C., March 29, 1952,  l e g . M.E.Barr (H-1974).  G». p o t e n t i l l a e spinov. P e r i t h e c i i s immersis, a t r i s , c o r i a c e i s v e l membranaceis, globulosis, laxe g r e g a r i i s , 330-400 jx; cum rostro elongato, recto v e l curvulo, 60 jx; a s c i s octosporis,  200 x  s e s s i l i b u s , r e f r a c t i v o annulo p r a e b i t i s et membrana  incrassata, fusoideis v e l c l a v a t i s , 60-70 x 13-15 jx; sporis h y a l i n i s , f u s o i d e i s , i n e q u i l a t e r i l i b u s v e l paulum curvatis, medio septatis, ad septum haud c o n s t r i c t i s , 4-guttulatis, b i s e r i a t i s to oblique g r e g a r i i s , 21-24 x 6-7 jx; aparaphysatis. Specimen typiCum i n University of B r i t i s h Columbia herbario conservatum, i n p e t i o l i s P o t e n t i l l a e p a l u s t r i s (L.) Scop., prope locum dictum "Stanley Park, Vancouver" i n B r i t i s h Columbia, l e g i t M.E. Barr (H-1974), March 29, 1952.  G. setacea (Pers.) Ces.& de Not.  (Plate V, fig.40)  P e r i t h e c i a mostly  150. hypophyllous, scattered, immersed, globose, black, 200-400 jx diameter, o s t i o l e long, slender, often curved,up to twice as long as the  diameter  of the perithecium; a s c i oblong-clavate, or f u s o i d , contracted into a short s t a l k , four- to eight-spored, (15-) 24-40 (-45)  x 6-9 jx; spores  fasciculate-crowded, fusoid or c y l i n d r i c a l , with or without a b r i s t l e l i k e appendage at each end, straight or s l i g h t l y curved, two-celled, not constricted at the septum, hyaline, 12-16  x 1.5-2  u.  On leaves of Acer  macrophyllum Pursh., S i l v e r Creek, (H-1946), U.B.C. (H-1954, H-1958); Alnus oregona Hutt., Stanley Park (H-1953), U.B.C. (H-1959).  G. veneta (Sacc. & Speg.) KLebahn  P e r i t h e c i a globose, gregarious, innate-  erumpent, collapsing, 200-300^1 diameter* black, o s t i o l e elongated, straight or curved, as long as or exceeding the diameter of the perithecium; a s c i fusoid-clavate* apices rounded, 45-50 x 7-8 jx, eight-spored; spores  elonga^e-  f u s o i d to subclavate, unequally two-celled, lower c e l l longer than the upper, hyaline, minutely multiguttulate, appendages at the ends, 15 x 3.5-4 jx» On leaves of Platanus o c c i d e n t a l i s L., V i c t o r i a , l e g . P.J.Salisbury (¥-2356), imperfedt stage; Platanus sp., Sidney, l e g . W.Jones (H-797, CPDS 1934).  » G . Vepris Mout.  (Plate V, fig.42)  P e r i t h e c i a immersed, globose, 200-250 jx  diameter, o s t i o l e not exceeding the diameter of the perithecium i n length, erumpent; a s c i oblong-clavate, eight-spored, 27-35 x 7-9 u; spores  two-  c e l l e d , not constricted, c e l l s with minute guttules, at f i r s t appendaged, 6-12  x 1.5-2.5 jx. On leaves of Rubus p a r v i f l o r u s Nutt., U.B.C. (H-1922).  Gnomoniella  Sacc.  P e r i t h e c i a membranaceous-coriaceous, subglobose,  immersed-erumpent;  o s t i o l e beaked, central or l a t e r a l ; asci c y l i n d r i c a l - c l a v a t e , eight-spored,  151  aparaphysate, with r e f r a c t i v e r i n g at the apex; spores continuous, hyaline, ovoid to oblong, r a r e l y short f i l i f o r m .  Subgenus Mamianla: p e r i t h e c i a  grouped under a black pseudostroma; spores ovoid.  G. C o r y l i (Batsch ex Fr.) Sacc. V, fig.43)  (Mamiania C o r y l i Ges. & de Not.)  (Plate  P e r i t h e c i a hypophyllous, separate, arranged i n a c i r c l e ,  immersed i n l e a f t i s s u e s , covered on both sides by the, blackened and i n f l a t e d epidermis, depressed-globose, about 300 jx diameter, o s t i o l e stout, c y l i n d r i c a l , about equal i n length to the diameJter of the perithecium, erumpent through a minute white disk; a s c i clavate, short-stalked, 36-40 x 7 yu, eight-spored; spores b i s e r i a t e , obovoid, one-celled, subhyaline, granular, 7 x 3 jx* Few of the c o l l e c t i o n s seen showed mature a s c i ; i n many the p e r i t h e c i a were f i l l e d with globose hyaline c e l l s .  On Corylus  c a l i f o r n i c a (A.DC.) Rose, Revelstoke, l e g . S.Brown-John (H-1949), Boat Encampment, B i g Bend Highway, l e g . J.W.Eastham, det. I.L.Conners  (0-7519);  0. r o s t r a t a A i t . , Aleza Lake, l e g . J.W.Eastham (H-l951), Vancouver,  collected  and determined hir H.T.Gussow (0 unnumbered, Aug.17, 1916); Corylus sp., Hope, l e g . M.J.Short, det. D.B.O.Savile  (H-1950, V-5722), Kersley, l e g .  G.E.Woolli&ns (H-1669).  20. Clypeosphaeriaeeae P e r i t h e c i a immersed, without a true stroma, but with a pseudostroma which forms"a sharply delimited, t h i n , black clypeus of fungus hyphae and epidermal c e l l s , usually only on the Upper surface; o s t i o l e short conical or p a p i l l a t e to long beak-like; breaking through the s h i e l d ; p e r i t h e c i a mostly carbonaceous-coriaceous; paraphyses usually lacking; asci c y l i n d r i c a l  152.  or clavate, eight-spored; spores one- to several-celled, muriform or f i l i f o r m , hyaline or colored.  Linospora F c k l . P e r i t h e c i a single or several covered by the f l a t , black pseudostroma, coriaceous, with a more or l e s s elongated, beak«like o s t i o l e ; asci c y l i n d r i c a l , d e l i c a t e , eight-spored; spores f i l i f o r m , hyaline or l i g h t yellow.  L . ? i n s u l a r l s Johans.  (Plate V, fig.44)  i n the l e a f , depressed-globose  P e r i t h e c i a few to numerous, innate  to oblong, 330-450 jx diameter, beak l a t e r a l ,  200-370 jx long; pseudostroma d i s t i n c t ; a s c i c y l i n d r i c a l , sharply attenuated to the base, eight-spored, 135-200 x 7—9 jx; spores l y i n g p a r a l l e l , f i l i f o r m , one-septate, 100-120 x 3 j i .  On l e a f of S a l i x sp,, U.B.C. (B>1967).  This  c o l l e c t i o n has l a r g e r a s c i (250-300 x 7.5-10 jx) and septate spores (225-x 1.5 ii) than any recorded.  I t most nearly f i t s L. i n s u l a r i s i n size and  in the l a t e r a l p o s i t i o n o f the curved beak» and may  be a large v a r i e t y of  t h i s species.  Linospora sp.  Pseudostroma acattered along veins of l e a f , i r r e g u l a r - r e c t -  angular, epiphylloua, at f i r s t only the margin blackened, l a t e r the entire clypeus; peritheciaimmature.  On Populus balsamifera L«, Saanichton, l e g .  W.Jones, det. J.E.Bier (H-1965, V-2068).  21. Valsaceae Stromata developed, black, formed i n and more or l e s s a l t e r i n g the substrate, f i n a l l y erumpent with i r r e g u l a r border or often distinguished only by a black marginal l i n e or sharply delimited, conical, p a p i l l a t e , or  153.  hemispherical; p e r i t h e c i a immersed i n the stroma or occasionally seated i n the substrate, or with only the o s t i o l e embedded i n the hemispherical stroma, formed under the surface of 1ke substrate and generally remaining covered, often c i r c i n a t e l y arranged, black, coriaceous; asci c y l i n d r i c a l or clavate, long stalked; paraphyses present or lacking; spores one- to several c e l l e d , or muriform, hyaline or colored..  Spores one-celled, hyaline to brownish. Ostioles d i s t i n c t l y sulcate, dark marginal zone present......Eutypella Ostioles not d i s t i n c t l y sulcata. Ectostroma d i s t i n c t , conical} marginal zone lacking.........Valsa No eetostroma formed; dark marginal zone u s u a l l y present.......... Cryptosphasria Spores more than one-celled,hyaline to brown. Spores two-celled, hyaline. Spores unequally  two-celled............................Apioporthe  Spores equally two-celled. Blackened zones present i n the Blackened zones l a c k i n g .  substrate...........Diaporthe .Cryptodiaporthe  Spores muriform, yellowish, becoming dark brown..............ffenestella  Apioporthe Hohn. (Emend. Hfehmeyer, 1933:  219).  P e r i t h e c i a immersed i n the substrate, usually clustered; entostromatic development scanty or v a r i o u s l y developed; ectostrcmata also various; t i s s u e s above the p e r i t h e c i a sometimes blackened, but no d e f i n i t e marginal zones within the substrate; a s c i clavate, with a r e f r a c t i v e s i n g i n the apex, stalks evanescent; spores hyaline, unequally two-celled, fusoid to pyriform, commonly tapered toward one end, which contains the smaller c e l l .  154©  Ao veprls (De Lacr.) Wehm.  (Plate V, fig»45)  Usually forming l o n g i t u d i n a l l y  elongate pustulate ruptures of the periderm with small central blackened disks containing the scarcely erumpent o s t i o l e s ; no blackened zones within the substrate; p e r i t h e c i a 150-300 x 160-200 ji  t  usually i n definite clusters;  stromatic development variable; a s c i clavate, 30-40 x 6-8 p.; spores o b l i quely b i s e r i a t e , e l l i p s o i d , narrowed toward one end, often somewhat curved, unequally two-celled, often constricted at the septum, 6-9 (-10)  x 2-2.5 ji,  and often with a short, b r i s t l e - l i k e , hyaline appendage at each end©  On  stems of Rubus macropetalus Dougl., Oowlchan Bay (B>1960)©  Cryptodlaporthe Petrak (Emend. Wehmeyer, 1933: 189) P e r i t h e c i a Immersed i n .the bark, more or l e s s I r r e g u l a r l y scattered or i n d e f i n i t e clusters, but usually with convergent o s t i o l a r necks which are erumpent through the periderm or through v a r i o u s l y formed ectostromata; ectostromata scanty or as conic to pulvinate erumpent disks; entostromata very scanty or as a r i c h development of hyphae about the p e r i t h e c i a ; no blackened marginal zones within the substrate; a s c i clavate, base tapering, evanescent, r e f r a c t i v e r i n g i n the apex; spores hyaline, two-celled, e l l i p s o i d to fusoid, straight or curved and often appendaged.  Spores not over 11 p i n length..................................C. Macounii Spores over  1  1  ^  i I 1  length.................  C o salicina  C. Macounii (Dear.) Wehm. On the surface as minute p a p i l l a t e pustules, 0.1-, 0.2 mm. i n diameter, through which the minute o s t i o l e s are barely erumpent and v i s i b l e only with a lens; no blackening of the substrate; p e r i t h e c i a small, spherical to flattened, with rather thick walls of h e a v i l y blackened parenchyma, 150-250 x 120-160 p  t  chBtered i n groups of 1-6 on the surface  155* of the bark just beneath the periderm; a s c i narrow-clavate, 30-35 x 4-5 jx; spores b i s e r i a t e , oblong-ellipsoid, 2-celled, hyaline, not constricted at the septum,8-10 x 1,5-2 May,  1915,  jx*  J.Macoun. Not  (1916j 100)  On Spiraea Menziesii Hook,, Vancouver Island, seen.  This species was  described by De amass  as Diaporthe Macounii and transferred to Cryptodiaporthe by  Wehmeyer (1933: 191).  C. s a l i c i n a (Burr.) Wehm.  (Plate V, fig.46)  V i s i b l e on the surface  numerous, minute, conic, pustules consisting of 1-8  o s t i o l e s , usually  separately erumpentj p e r i t h e c i a spherical or f l a t t e n e d , 300-480 x 400 y i , walls membranaceous, 18-27  as  280-  jx thick, within bark cortex; ectostromata  formed on surface and obliterated by the erumpent o s t i o l e s ; no blackened zones; a s c i clavate, 45-70 x 9-15  u; spores b i s e r i a t e , e l l i p s o i d t o i n -  e q u i l a t e r a l , blunt at the ends, 2-celled, hyaline, not constricted at the septum, 15-20  x (3.5#i) 4.5-7.5 u.  On twigs of S a l i x sp», Sidney, l e g .  J.Macoun (QM«?245), determined as Diaporthe s a i l c e l l a by J.Dearness, but s i m i l a r to E l l i s and Everhart, N.A.F. 2745; on S a l i x sp., Fraser Valley, l e g . G.E.W.Clarke (0-7184).  Cryptosphaeria Nitschke  (non Grev.)  Stroma effused or wanting, not l i m i t e d by circumscribing l i n e ; p e r i thecia iranersed i n bark, scattered; o s t i o l e s erumpent; a s c i eight-spored, without paraphyses; spores a l l a n t o i d , hyaline.  C. populina (Pers.) Sacc.  (Plate V, fig.47)  Stromata effused, r a i s e d as  a broad, f l a t b l i s t e r , dark marginal zone present; p e r i t h e c i a scattered, immersed, large; o s t i o l e s erumpent, obscurely sulcata; a s c i narrow-clavate,  156. p.sp. 30-45 x 5-8 jx narrowed above and tapering below into a long s t a l k ; t  spores b i s e r i a t e , a l l a n t e i d , yellowish, (7-) 8-12  x l . 5 - 2 ^ i . On Populus  sp., Summerland, l e g , G.E.Woolliams, dot. I.L.Connera (0-7862).  Dlaporthe N i t .  (Emend. Wehmeyer, 1933:  14).  P e r i t h e c i a formed i n the substrate, erumpent, scattered s i n g l y or clustered, marginal zone present; asci clavate to o l a v a t e - c y l i n d r i c a l , with a r e f r a c t i v e r i n g at the apex; paraphyses broad, band-like, evanescent; spores f u s o i d - e l l i p s o i d to c y l i n d r i c a l , s t r a i g h t , i n e q u i l a t e r a l , or curved, 2-celled, hyaline, sometimes appendaged, biaoriate to u n i seriate.  On herbaceous stems, Entostromata sharply margined by a blackened l i n e or ridge, v i s i b l e on the surface.............a,....  • Da pardolata e  Entostromata not strongly margined as above.  .P. A r c t i i  On woody stems; dorsal blackening usually concealed by the periderm. Spores not over 4 u i n diameter................................De eres Spores over 6,5 i i i n diameter DJ A r c t i i (Lasch.) N i t .  (Plate V, fig.48)  D. columbiensis Entostromata normally widely  effuse and i n d e f i n i t e l y outlined; appearing on the surface as blackened widely effuse or confluent areas oi|as numerous conic or spine-like o s t i o l e s erumpent singly or i n loose groups; dorsal blackened zones usually developed on the bark surface; o s t i o l e s conic, o y l i n d r i c , or spine-like; ventral zone present or absent; p e r i t h e o i a spherical or somewhat flattened, 280-480 x 160^320 i i , scattered or crowded; a s c i clavate, with a r e f r a c t i v e r i n g i n  157,  the apex, (40-) 47-60 x 7-10 jijspores b i s e r i a t e , f u s o i d - e l l i p s o i d , straight or more or l e s s i n e q u i l a t e r a l or curved, two-celled (often t a r d i l y septate)* hyaline, constricted at the septum when mature, (11-0 12-15 x 2.5-4^1,  (-17)  On stalks of Arnica l a t i f o l i a Bongo, Cathedral Lakes (H-1972) *  Do columbiensis E l l . & Ev.  (Plate V, fig*49)  Bearcely v i s i b l e on the  surface as short, stout o s t i o l e s , erumpent singly or i n small loose groups through s l i g h t l y pustulate, ruptures of the periderm or appearing as small s l i g h t l y blackened patches, 1-5 mm» i n diameter, bounded by marginal l i n e s ; entostromata strongly d i f f e r e n t i a t e d and pustulate-effused; dorsal blackened gones dipping through the bark into the wood; p e r i t h e c i a l a r g e , 480-650 x 480-560^1, scattered s i n g l y or i n small groups; a s c i d a v a t e - e y l i n d r i c a l , with a r e f r a c t i v e r i n g i n the apex, 100-122 x 11-19 jx; spores i r r e g u l a r l y b i s e r i a t e to u n i s e r i a t e , oblong-ellipsoid, blunt, two-celled, hyaline, constricted at the septum, 16-20  (-22) x 7-9 ^a.  Original host given as  unknown ( E l l i s and Everhart, 1890: 233); cotype (OM-32)* Hastings, c o l l o J .Macoun, A p r i l 11, 1889 i s l a b e l l e d "on dead aspen".  Reported by Dearness  (1916: 100) on N u t t a l l i a oeraslformis T.& G*, V i c t o r i a , A p r i l , 1915©  Do eres N i t .  (Plate VI, f i g o l )  Appearing on the surface as small pustulate  ruptures or angular perforations of the periderm, often exposing the blackened surface of the bark or ectostromata; o s t i o l e s s h o r t - c y l i n d r i c to somewhat elongated, erumpent s i n g l y or i n small loose clusters; on decorticated twigs as widely effuse, blackened areas with numerous erumpent o s t i o l e s ; entostromata mostly evenly effuse, surface o f bark usually blackened; ventral zones always present at the extreme margins of the f r u i t i n g areas*  158o u s u a l l y more or l e s s complete beneath; numerous small conic or pulvinate ectostromata formed on the surface of the bark; p e r i t h e c i a spherical or flattened, 240-800 x 160-500^1, scattered s i n g l y , i r r e g u l a r l y crowded, or grouped, separately or c o l l e c t i v e l y erumpent; a s c i clavate, with a r e f r a c t i v e r i n g i n the apex, 40-60 x 5-8 ji;  spores b i s e r i a t e , hyaline, long-  narrow-fusoid, or often i n e q u i l a t e r a l , one-celled when young and becoming broader* two-celled, f u s o i d , constricted at%the  immature,  septum, 9*5-15  x 2,5-4, ji at maturity.  On Acer sp., Duncan (H-1957), spores 15 x 3-4 jx\  Populus ?trlchooarpa T.&  G.,  17 x (1.5-) 3 ji;  Surrey, l e g . T.G.Atkinson (E-1858), spores  S a l i x babylonica L.>  North Vancouver, l e g . S.BrownrJohn,  det. L.E.Wehmeyer (H-l927), spores 13-15  x 2.5-4 yi©  These three hosts  have not been previously reported i n North itaerica»  D. pardolata (Mont.) Fckl©  (Plate VI, fig.2)  sharply outlined entostromatic  Appearing on the surface  areas with a marginal blackened l i n e or  ridge where the ventral zone abuts upon the surface; entostromatic l i m i t e d i n extent (1-7 mm.),  as  areas  confluent, or more widely e f f u s e , margin even  or, more usually, i r r e g u l a r l y lobed; surface of substratum blackened heavily, only s l i g h t l y , or not at a l l ; p e r i t h e c i a spherical or somewhat flattened, 160-480 x 120-300^1, scattered singly or occasionally i n small groups of 2-3;  o s t i o l e s s h o r t - c y l i n d r i c to conic, s l i g h t l y erumpent; ventral zone  d e f i n i t e i n wood; a s c i clavate, 40-55 x 6-8 yi; spores b i s e r i a t s , f u s o i d e l l i p s o i d , two-celled, hyaline, s l i g h t l y constricted at the septum, straight or sometimes i n e q u i l a t e r a l , or somewhat curved, 9-15 angustifolium L., U.B.C. (H-1947); spores 11-12  x 2.5-4ji*  x 2.5-3.5yu©  On Bpilobium  159, Eutypella  flit.  Stroma effuse or Isolated; p e r i t h e c i a clustered and c o l l e c t i v e l y erumpent; ectostrema l i m i t e d i n development, usually i n isolated patches; entostroma often well developed end pustulate, surrounded by a dark mar** ginal zone; o s t i o l e s sulcate; a s c i eight-spored; 3pores b i s e r i a t e , a l l a n t o i d one-celled, yellowish to brownish-hyaline*  E . s t e l l u l a t a (Fr.), Sacc*  (Plate VI, fig.3)  or subspherical, r a r e l y subeffused, lr-2 mm,  Stromata obtusely conical across; p e r i t h e c i a few or  numerous i n a stroma, subspherical or angular from mutual pressure, small, necks converging; o s t i o l e s short and small or elongated, rough sulcatecleft,  3-5-sided, connate; asci c y l i n d r i c a l - c l a v a t e , p.sp.. 40-50 z 5-6 ji\  spores crowded or s u b b i s e i i a t e , a l l a n t o i d , yellowish, 7-12 x 1.5-2 u.  On  dead bark o f Alnua oregona Nutt., U.B.C. (H-1829); on dead bark of Alnus sp.,  l e g . J .Macoun, det. J.Dearness, Vancouver Island (QM unnumbered, 1912);  Sidney (0M unnumbered, Sept.13, 1913, 0M«*36); Betula oceidentalis Hook., Quesnel, l e g * M.K.Nobles (E-2324); Populus sp.* Sidney, l e g . J.Macoun (OM-38).  Fenastella T u l . Stromata and p e r i t h e c i a as i n Valsa; asci c y l i n d r i c a l , four- to e i g h t spored; spores u n i s e r i a t e , oblong or e l l i p t i c a l , muriform, yellow-brown.  F. prlnceps T u l .  (Plate VI, fig*4)  Stromata orbicular or e l l i p t i c a l at  base, l e n t i c u l a r , sunk i n the parenchyma of the bark, with the epidermis s l i g h t l y pustulate-elevated over i t , consisting of brown, floccose matter;  160*.  p e r i t h e c i a 3-14 i n a stroma, crowded and mostly angular from pressure, c o l l a p s i n g when dry, black, about 500^1 diameter, with s h o r t - c y l i n d r i c a l , perforated o s t i o l e s , united i n a roundish or lanceolate, erumpent disk; a s c i c y l i n d r i c a l , s h o r t - s t i p i t a t e , 150-260 x 18-27 jx; with numerous paraphyses; spores u n i s e r i a t e , o b l o n g - e l l i p s o i d , constricted i n the middle, c l o s e l y multi septate and muriform, golden-yellow, becoming brown, with a hyaline, p a p i l l a t e c e l l at each end, 25-42 (-70) z 12-21 jx»  On bark o f  Prunus demissa (NuttiJ. D.Dietr., Stanley Park, Vancouver (H-1956); on dead bark, V i c t o r i a , l e g * J .Macoun, det. J.Dearness (OM-17), Comox (0M-68)  o  Valsa F r i e s Stromata i s o l a t e d ; p e r i t h e c i a clustered i n the unaltered bark tissues beneath a d i s t i n c t conical ectostroma; no marginal zone present;  asci  eight-spored; spores a l l a n t o i d , one-celled, hyaline*  On coniferous hosts; a s c i small, (18-) 25-30 JX long.  ..........V* P i n l  On deciduous hosts; a s c i l a r g e r , over 30 ji. i n length* Ectostromatic disk white* Spores small, 7-9  long............  ..............*Vo nivea  Spores longer, 9 ^ i and over. P e r i t h e c i a l necks short, blunt; a s c i with apices..•..• ........................  truncate .V. sp.  P e r i t h e c i a l necks longer, the length of the perithecium; a s c i with apices narrowed and rounded* Spores 9-12 (-15)x 2-3 jx; stroma whitish within........ ..........................................V* leucostoma Sporss 13.5-24 x 3-5 u; stroma brown within.»V. amblens  7 Ectostromatic disk brown....  ,  • V. cer atophora  161© 7© ambiens (Pers©) Fr©  (Plate 71, fig.5)  Stromata numerous, 1,5-3  mm,  broad, pustulate-prominent; p e r i t h e c i a 4-20, c i r c i n a t e , necks long, slender, o s t i o l e s erumpent around the small, whitish disk; asci p.sp, 40-55 x 12-15 jxy spores i r r e g u l a r , a l l a n t o i d , hyaline, obtuse, 14-24 x  3.5yuo  On bark of Pyrus Malus L.,  Bearness (OM-202)©  Sidney, l e g . J.Macoun, det. J ,  Dearness considers t h i s an a t y p i c a l form, with i t s  narrower a s c i (7.5-10 jx wide) and smaller spores (13.5-16,5 x 3yi)©  7. ceratophora Tul©  (Plate 71, fig»6)  Stromata scattered, depressed-  hemispherical to c o n i c a l , erumpent; p e r i t h e c i a 5-20 i n a stroma, crowded, necks long, o s t i o l e s erumpent around the brown disk; a s c i nerrow-clavate, (24-) 32-40 x 4-7 jx; spores b i s e r i a t e , a l l a n t o i d , s l i g h t l y curved, hyaline, 6-9 (-10) x l<,5-2 jx* On Betula sp., Hastings, leg© J.Macoun (0M-34ti); Rubus sp,,. Vancouver Island, leg© J .Macoun, det© J.Dearness (OM-19)© 7© leucostoma (Pers©) Fr© (Plate 7I» fig©7)  Stromata scattered, whitish  insidej disk erumpent through transverse cracks i n the bark, white, dotted with black o s t i o l e s ; necks long; a s c i fusoid-clavate, 35r45 (-57) z7»9ji; nearly s e s s i l e ; spores b i s e r i a t e , a l l a n t o i d , hyaline, 9-12 (-15) x l©5-3jx* 0 1 1  F y m s Malus L©, Sidney, l e g , J .Macoun, det, J.Dearne3s (OM-37); on dead  wood, Ccmox, l e g , J,Macoun (OM-73); Prunus persioa (L.) Stokes, Sandwick, l e g . W.R.Foster, det. W.Jones ( E - 4 4 6 ) ; on nectarine (GPDS 1945)©  7© nivea (Hoff©) Fr©  Stromata s c u t e l l a t e , white inside, disk erumpent,  xvhite, truncate; p e r i t h e c i a circinate or i r r e g u l a r , 4-10 i n a stroma, small; asci clavate, 35-45 x 5-6 u, four- or eight-spored; spores a l l a n t o i d , hyaline, 7- 9 x 1.25-1,5jx*  Conidial stage (Cytospora nivea Sacc©.)..in centre of Btroma,  spores a l l a n t o i d , hyaline* 5-7 x X jx  B  On Populus sp,, Cariboo, leg©  162. J.Bancroft (H-1948); p e r i t h e c i a i n t h i s c o l l e c t i o n immature. 7. P i n i (Alb. & Schw.) F r .  (Opiate 71, fig.8)  Stromata scattered or  subgregarious, hemispherical, 1-2.5 mm. diameter, covered by the elevated epidermis which i s ruptured by the c l o s e l y packed, short o s t i o l a s * forming a f l a t black disk; p e r i t h e c i a small, numerous, 20-30 i n a stroma, c l o s e l y packed; a s c i narrow-clavate, s e s s i l e , 18-30 x 4.5-6ya; spores a l l a n t o i d , hyaline, i r r e g u l a r , 6-9 x l - l « 5 ^ t .  On Pseudotsuga taxi f o l i a (Lam.) B r i t t , ,  Cowlchan.Lake, leg* LMounce, det* I.L.Cdnners  7. sp.  (Plats 71, f i g . 9 )  (0-6098).  Stromata scattered, rounded; p e r i t h e c i a c i r c i n a t e ,  with short necks and o s t i o l e s erumpent through a whitish disk; a s c i s e s s i l e , fusoid with a truncate apex, 30-36 x 7-9 jx; 3pores a l l a n t o i d , hyaline, curved or straight, 10.5-21 x 1.5-2 ji*  On dead stumps of Betula occidentelis  Hook., Summerland, l e g . G.E.Woolliams (0-3612, 0-3625). 7* sp*  Oh peach, 7ancouver Island, not seen (CPDS 1947)»  22.  Melanconidaceae  Stromata round, sharply delimited, conical or cushion-shaped, sunken; p e r i t h e c i a remaining covered, with only the o s t i o l a r layer erumpent, coriaceous; a s c i c y l i n d r i c a l or clavate, eight-spored; paraphyses present; 3pores one- to several-celled, hyaline or colored.  Melanconis T u l . Pustulate-erumpent through the periderm by a white, grey or yellowgreen ectostroma; p e r i t h e c i a circinate i n baric, i n some cases surrounded  163.  by entostromatic mycelium; blackened zones occasionally present; asci clav? ate,  wall thickened at apex; paraphyses broad-bandlike, evanescent;  spores  b i - to u n i s e r i a t e , two-celled, hyaline or brown, fusoid, e l l i p s o i d or c y l i n d r i c a l , with or without appendages.  -Appendages elongate, as long as or longer than the spores; spores  7  8-13 u i n diameter*..  ..<> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ .  ..M.  thelebola  Appendages shorter, spinelike or caplike, often evanescent; spores' 4-8jx i n d i a m e t e r . o . . . . . . . . M . alni Tul.  «M» a l n i  (Plate VI, fig.10)  c o n i c a l pustules 1.5-2,5 mm.  On the surface as rai8ed c i r c u l a r  flat-  diameter, with central white to yellowish  disk, surrounded by the punctate o s t i o l e s ; p e r i t h e c i a spherical to f l a t tened, 350-450 x 300-400 jx  s  c i r c i n a t e i n the unaltered bark cortex; asci  f u s o i d - c y l i n d r i c a l , s e s s i l e , 60-80 x 8-13.5 jx;  spores i r r e g u l a r l y b i s e r i a t e ,  f u s o i d - e l l i p s o i d , two-celled, hyaline, granular, 13-22 x 3»5>7^i; terminal appendages s h o r t - c y l i n d r i c to tapered, 3-7 x 2-4 jx, evanescent.  On Alnus  sitohensis (Regel.) Sarg., Daisy Lake, l e g . J.S.Boyce, det. J.Dearness (0*767).  M . thelebola (Fr.) Sacc.  (Plate VI> f i g . l l )  On the surface as scattered  conic pustules 1-2.5 mm.diametsr; with central white diak containing 2-12 short stout or conic black o s t i o l e s , ectostroma yellowish white, s l i g h t or w e l l developed; p e r i t h e c i a 500-800^. diameter, more or l e s s c i r c i n a t e with convergent necks i n a swollen area o f the bark, with or without a blackened zone; a s c i clavate, 120-195 x 15-21 jif spores i r r e g u l a r l y b i s e r i a t e , e l l i p s o i d , c y l i n d r i c a l , straight or curved, s l i g h t l y o r not constricted at the septum, two-oelled, hyaline, 24-35 nr 30-42! u jx long, long, 8-10 s - 1 0 ujx wide;  164,  appendages long, hyaline, B r i s t l e - l i k e when fresh, evanescent i n o l d material; i n age spores tend to become brovm and two- to three-septate. On Alnu3 oregona Nutt., Cowichan Lake, l e g . W.G.Ziller (0-26101), U.B.C, l e g . C J.Anastaciou (H-1921).  This species i s common on the  University campus, Haney, and Goldatreem Park on Vancouver Island; cankers are formed on branches and main stem of young alders (Anastaciou  23*  Diatrypaceae  Stromata effused or d i s c o i d , of fungus mycelium, l y i n g beneath the epidermis, l a t e r erumpent, the c o n i d i a l and p e r i t h e c i a l stromata  separate  or, i n Calosphaeria, the p e r i t h e c i a l stroma l a c k i n g ; p e r i t h e c i a sunken i n the stroma or seated on the bark (in Calosphaeria), with o s t i o l e s erumpent; asci generally thickened at the apex, four- or e i g h t - or many-spored; paraphyses present or l a c k i n g ; spores mostly one-celled, small, a l l a n t o i d , hyaline to yellowish or l i g h t brown.  P e r i t h e c i a l y i n g free or seated on the inner bark, stroma l a c k i n g . . •  .Calosphaeria  P e r i t h e c i a immersed i n an erumpent-superficial, effused or discoid stroma. A s c i eight-spored. A s c i many-spored.......  •  •  Diatrype .Diatrype 11 a  Calosphaeria T u l . Stroma l a c k i n g ; p e r i t h e c i a free or seated on the inner bark, scattered or i n circinate groups; o s t i o l e s more or l e s s elongated; asci clavate, f a s -  165c, f a s c i c u l a t e , s e s s i l e or stalkad; mostly eight-spored; paraphyses longer than a s c i , stout, evanescent; spores small, a l l a n t o i d , hyaline, one-celled.  C* p r i n e e p 3 T u l . (Plate 71, fig.12)  P e r i t h e c i a on the inner bark i n o r b i c u l a r  or e l l i p t i c a l groups, crowded, globose,  smooth, shining; necks long, de-  cumbent, c y l i n d r i c a l , erumpent; a s c i clavate, long-sstelked, eight-spored, p.3p. 18-26  x 4-6 yi; paraphyses long; spores a l l a n t o i d , hyaline, 5-6  x 1.5 jx. On Amelanchier sp., Spence's Bridge, l e g . W.G.Ziller  Diatrype Pr.  (&9)  (H-1945).  (Emend. Wehmeyer, 1926)  Stroma effused or i s o l a t e d ; ectostrcma strongly developed and deciduous; entostroma forming a widely erumpent disk, dark marginal zone present; o s t i o l e s sulcate; a s c i eightrspored; spores b i s e r i a t e , a l l a n t o i d ,  one-  c e l l e d , yellow-hyaline.  Stroma widely effused, continuous or interrupted.  D. stigma  Stroma flattened-pulvinate, discoid.. A s c i p.sp. 40-55 x 4-6 jx  •  .....P. b u l l at a  A s c i smaller, p.sp. not over 30 jx long. Stroma grey; spores 4-6 x .75-1.5yi... Stroma dark brown; spores 6-8 x 1.5-2 jx,.........•«D.  D. b u l l a t a (Hoffm.) F r .  (Plate 71, fig.13)  pulvinate to shield-shaped, 2-5 mm.,  .P. Macounii disciformiB  Stromata gregarious, f l a t t e n e d -  erumpent, surface dark brown, i n t e r i o r  whitish; p e r i t h e c i a numerous, monostichous, immersed, ovate, small, o s t i o l e s punctiform, perforated, s l i g h t l y prominent; asci narrow-clavate,  long-stalked,  p.sp. 40-55 x 4-6 jx; spores subbiseriate, a l l a n t o i d , yellowish-hyaline, 5-8  (-10)  x 1.5-2 jx« u.  On ?Salix sp., Saanichton, l e g . I.Mounce, det.  166* I.L.Connsrs (0-14361)•  D. disciformis (Hoffm©) Fr©  (Plate VI, fig«14)  arious, flattened-pulvinate, round, 2-3 mm.  Stromata scattered or greg-  diameter, discoid, erumpent,  dark brown, whitish within; p e r i t h e c i a 20-30 or more, ovate, about 750 x 500 jx; necks short, o s t i o l e s obtusely conical, smooth or 3-5-rcleft; asci clavate, long stalked, p.sp© 22-30 x 4-5 j i ; spores a l l a n t o i d , yellowish, 6-8 z 1.5-2 jx*  On bark of Alnus sp., Hastings, l e g . J . Macoun (0M-35b)©  D. Macounii Ell© & Ev©  (Plate VIJ fig.15)  Stromata d i s c o i d , grey, 3-4-mm.,  suborblcular or s u b e l l i p t i c a l , erumpent; p e r i t h e c i a numerous  >  30-50, mono-  stichous; ovate-globose, 200-350 jx diameter; neck short, o s t i o l e small, black, r a d i a t e - c l e f t i n depressions o f the stroma; a 3 c i p.sp. 20-30 x 3-4.5 jx; spores a l l a n t o i d , yellowish, 4-6 x .75-1.5 jx. Described by E l l i s and Everhart (1890: 224) on "(Acer rubrum)?, Agassiz, May, 1889. No©127."  Macoun,  The cotype i s l a b e l l e d "on alder bark" (QM-127). . On Populus  trlchocarpa Tiifc G«, White Rock (H-1944); Populus sp©, Royal Oak, leg© J.Macoun, det. J.Dearness (OM unnumbered, Sept© 29, 1914), E l k Lake (OM unnumbered, A p r i l 18, 1915), Vancouver Island (OM unnumbered, A p r i l 8, 1915).  D» stigma (Hoffm©) de Not©  (Plate VI, fig.16)  Stromata widely effused,  continuous or interrupted, f i n a l l y erumpent, brownish or dusty-white becoming nearly black, v b i t i s h inside; p e i i t h e c i a monostiohous, ovate, small, with short necks and punctiform, discoid, depressed-hemispherical or conical, entire or sulcate o s t i o l e s ; a s c i clavate-oblong, long stalked, p.sp. 30-50 x 4-8 u; spores a l l a n t o i d , yellowish to brownish, 4©5-7©5 x  167.  1-2^1. On Betula f o n t i n a l i s Sarg., Salmon. Arm, l e g . G.E.Woolliams (H-1941).  D i a t r y p e l l a Ces. & de Not.  (Emend. Webmeyer, 1926)  Stroma effuse or i s o l a t e d ; ectostroma absent or strongly developed, but not deciduous; entostroma well developed, often pustulate but usually not widely erumpent, bounded by a dark marginal zone; p e r i t h e c i a usually clustered, r a r e l y separated, erumpent; o s t i o l e s u s u a l l y sulcata; asci long stalked, poly-sporous; spores a l l a n t o i d , one-celled, yellow-hyaline.  Stromata with an enlarged base; asci p.sp. 100-120 x 10-12^1..D. Tocciaeana Stromata without enlarged base; green within; asei p.sp. 50-60 x  6-7  . P . betulina D. betulina Pk.  (Plate VI, fig.17)  Stromata transversely erumpent, pron#  inent, e l l i p t i c a l , black outside, green within, 1.5-2.5 mm.;  perithecia  e l l i p s o i d , black; o s t i o l e s s t e l l a t e ; asci polysporous, stalked, clavatefusoid, p.sp. 45-65 x 6-7yi, paraphysate; spores crowded, a l l a n t o i d , yellowish, 4-7 x 1 ji.  On Betula f o n t i n a l i s Sarg., MacLeese Lake, l e g .  J".Bancroft (H-1942); B. oecidentalis Hook.,, Quesnel, l e g . W.G.Ziller ;  (H-1943, V-5285).  D. Tocciaeana de Not.  Stromata scattered or gregarious, small, pustulifoaan  or hemispherical, with a broad base, disk black, p i e r c i n g the epidermis; p e r i t h e c i a 3-8 i n a stroma, large* globose, with a short, thick neck, o s t i o l e s converging, f a i n t l y 3 u l c a t e ; asci narrow-oblong-clavate, long stalked, polysporous, p.sp. 80-120 x 10-15ji\ paraphyses long, f i l i f o r m ; spores crowded, a l l a n t o i d , yellow-brown, 5-7.5 x l y i . Sidney, l e g . J.Macoun, det. J.Dearness  (OM-30).  On bark of Alnus sp.,  168.  24. Melogrammataceae Stromata mostly round, sharply delimited, conical or cushion-shaped, seldom effused or discoid* mostly hemispherical,  formed under the p e r i -  derm and then erumpent and more o r l e s s free; p e r i t h e c i a sunken i n the stroma; a s c i c y l i n d r i c a l , clavate, or fusiform, four- to eight-spored; paraphyses present or lacking; spores one- t o several-celled or muriform, hyaline or colored.  Endothia F r i e s Stromata sharply delimited, conical or cushion-shaped, at f i r s t covered, then erumpent, leathery, yellow; p e r i t h e c i a sunken, black, with long necks; a s c i elongated c y l i n d r i c a l , p a r t l y clavate, eight-spored; spores fusoid or e l l i p s o i d , two-celled, hyaline; paraphyses l a c k i n g .  B. p a r a s i t i c a , (Murr. A. & A.  Only the c o n i d i a l stage seen.  On bark of  Castanea s a t i v a Sarg., Agassiz (0-370, 0-2992) (CPDS 1941; F a u l l and Graham 1914) •  25.  Xylariaeeae  Stromata s u p e r f i c i a l , f r e e , sometimes p a r t i a l l y sunken i n the substrate,:, variously shaped, c r u s t - l i k e , hemispherical,  conical, clavate, truncate, or  expanded d i s k - l i k e at the apex, i n seme species branched, sometimes fibrous i n the s t e r i l e part, always of fungus hyphae, oftsn with s t e r i l e basal stalk; u s u a l l y black, woody, or carbonaceous, occasionally thick-fleshy when ypung; p e r i t h e c i a peripheral, concentrically arranged, sunken, occasionally prominent, usually mono stichous; o s t i o l e usually short c o n i c a l , s l i g h t l y prominent;  169. coriaceous or carbonaceous, black; asei c y l i n d r i c a l or e y l i n d r i c a l clavate, eight-spored; paraphyses f i l i f o r m or lacking; spores mostly onerc e l l e d , e l l i p s o i d or fusoid, often i n e q u i l a t e r a l , brown or black. Stroma effused, pulvinate to globose, s e s s i l e or stalked. Internal zonation prominent* •  ,  ..Daldinia  Internal zonation not conspicuous  Hjpoxylon  Stroma stalked, clavate to c y l i n d r i c a l , simple or branched  ,..Xylaria  Daldinia Ces. & de Not. Stromata pulvinate to globose, stalked or s e s s i l e , dark i n s i d e , conspicuously zonate; a s c i c y l i n d r i c a l , eight-spored, stalked; spores ovoid or oblong, dark-colored.  D. concentrica (Bolt.) Ces. & de Not.  (Plate VI, f i g . l 8 )  Stromata black,  carbonaceous, subspherical to hemispherical; p e r i t h e c i a monostichous, obovoidoblong, angular from pressure, o s t i o l e s s l i g h t l y prominent, punctiform; a s c i long stalked, 80-100 x 8-10ji (p.sp.); spores dark brown, u n i s e r i a t e , 12-15 x 7-9 yi.  On logs, Slocahjcity, l e g . J .Macoun (0M unnumbered, Aug.21,  1900); Betula f o n t i n a l i s Sarg., Summerland, l e g . G.E.Woolliams, s t e r i l e (H-1578).  According to C h i l d (1952), D. concentrica i s not found i n western  North America; however the specimens mentioned here do not show any bronze color i n the stromata but are black; spores are s l i g h t l y l a r g e r than i n D. occidentals.  P. occidentals Child*  Mentioned by Child (1952) from Bendigo, V i c t o r i a ,  June 1918, E.J.Summers  (L-10806); on Be t u l a occidental i s Hook., Be t u l a sp.,.  Cheetzi (CPDS 1953).  Not seen.  170, Hypoxylon Fries Stromata effused to globose, dark inside, not stalked, not conspicuously zonate, o f woody-corky consistency; p e r i t h e c i a peripheral, globose, ovate or oblong, coriaceous to membranaceous, sunken i n the stroma, but generally with the upper part more or l e s s projecting, with a p a p i l l i f o r m or umbilicate o s t i o l e ; a s c i c y l i n d r i c a l , eight-spored; spores u n i s e r i a t e , e l l i p t i c a l or fusoid* i n e q u i l a t e r a l or curved, one-celled, brown*  Stromata hollow when mature, encrusted over peritheciajspores large, over 30jx long  H. ustulatum  Stromata not hollow; spores smaller, 25 jx i n length or l e s s * Stromata with a purplish color. Stromata pulvinate, i r r e g u l a r l y circular..*..............H. fuscum Stromata effused i n a f l a t layer on the wood........H. vogesiacum Stromata without purplish c o l o r . Stromata raised, i r r e g u l a r . At f i r a t red-brown; spores 9-12 x 4-7^a».......H* multiforme Black throughout; spores 18-25 x 8-13ji. •<*...  H* aspera  Stromata f l a t , effused, greyish black H« serpens var* macrosporum  H. aspera Mass.  (Plate VI, fig.19)  Stromata black, large, prominently  hemispherical to irregular* much roughened; p e r i t h e c i a i n a peripheral layer, large, ovoid; asei not seen; spores o v a t e - e l l i p s o i d , one end f r e quently truncate, brown, 18^25.5 x 8-13 jx»  On Tsuga heterophylla (Raf.) Sarg.,  Tumour Island, l e g . D.C.Buckland (H-1908); i d e n t i f i e d by Dr. J.H.Miller, in l i t t . June 12, 1952. Dr. M i l l e r considers t h i s an unusual host.  171. H. fuscum (Pers.) F r .  (Plate 71, fig.20)  Stromata purplish, small,  prominently erumpent through hark, i r r e g u l a r l y globose, blackened by the raised upper part of the p e r i t h e c i a ; p e r i t h e c i a shining black, not p a p i l l a t e , globose; asci c y l i n d r i c a l , long stalked, 120-135 x 7-9 j i , p.sp.; spores brown, e l l i p s o i d , with two guttules, 12-16 x 6-8 ji.  On Alnus oregona Nutt.,  (-18)  Cowichan Lake, l e g . V.J.Nordin (H-1855,  7-2916); North Vancouver (H-1857), Sieamous, l e g . J.Macoun (0M-167), Sidney, l e g . J.Macoun (OM-35, OM-60), U.BC,  l e g . S.Brown-John (H-1854);  Betula sp., Hastings, l e g . J.Macoun (QM-56); Corylus sp., Mt. Douglas Park, leg.  W.G.Ziller (7-3566)•• .One c o l l e c t i o n on Populus tremuloides Mjchx.,  Ashnola D i s t r i c t (H-1860), f i t s t h i s species, although M i l l e r (1928: 317) says that H. fuscum i s found only on Alnus, Betula, and Corylus spp.  H. multiforme F r . (Plate 71, fig.21)  Stromata large, black, i r r e g u l a r ,  reddish brown when young, roughened by the prominent p e r i t h e c i a , o s t i o l e s black; spores 9-12 x 3-7 ji»  F i r s t recorded from B r i t i s h Columbia by  E l l i s and Ever hart (1892: 634), on Alnus sp., Macoun.  On Alnus oregona  Nutt., U.B.C, l e g . W.A.Porter (U-127), Sooke, l e g . W.G.Ziller (H-1856, 7-3562); Alnus sp., Cowichan Lake, leg.'R.E.Foster (7-397); Betula sp., Hastings, l e g . J.Macoun and l a b e l l e d by him H. commutatum Njtschke var. Holwayanum Sacc. & E l l . (OM-23); Cinema, l e g . M.K.Nobles, (H-1852, 7-5196); Sieamous, l e g . J.Macoum (OM-164); Populus gtrichocarpa T.& G., Surrey, l e g . T.G.Atkinson  (H-1858); Populus sp., Sidney, l e g . J.Macoun (OM-322, OM un-  numbered, Sept.9, 1913); on bark, Comox, l e g . J.Macoun (OM-15, OM-27), Hastings, l e g . J.Macoun (OM-51, s t e r i l e ) , Cedar H i l l , l e g . J.Macoum (OM-63). •  172, E . serpens Pers. ex F r . var. faacrosporum M i l l e r  (Plate 71, fig.22)  f l a t , effused, greyish black; spores 12-18 x 6-9^u.  Stroma  On dead wood, Comox,  Vancouver Island, l e g . J.Macoun (OM-29). H. ustulatum (Bull.) F r .  (Ustulina vulgaris Tul.)  (Plate 71, fig.23)  Stromata black, extensive, c r u s t - l i k e over the p e r i t h e c i a ; p e r i t h e c i a punctiform, l a r g e , broadly ovate; spores black-brown, (27-) 30-39 x 6-9.7 jx. Common around stumps, e s p e c i a l l y of maple.  On Acer macrophyllum Pursh.,  Mt. Douglas Park, l e g . P.J.Salisbury (H-1850, 7-2648, 0-19944), Royston, l e g . W.Touzeau (H-1848, V-2162, 0-6487), U.B.C, l e g . J.W.Groves (0-23323), (E-1847)j ?Alnus sp,, Goldstream Park, l e g . L . A r n a l l (0-4387); on burned l o g , GO^B.stream Park, l e g . M.K.Nobles (H-1849, V-4662). H. vogesiaeum Pers. ex Sacc.  Stromata effused, flattened, purplish-red^  p e r i t h e c i a black, crowded; o s t i o l e s punctiform, forming black dots on the surface of the stroma; a s c i c y l i n d r i c a l , long stalked, p.sp. 105-120 x 7-9ya; spores brown, flattened on one side, guttulate, 14-20 x 6f*8 jx. On Alnus sp., Cowichan Lake, l e g . R.E.Foster (H-1851, 7-406).  Species not seen or uncertain: E . atropurpureum F r . Macoun.  Cited by E l l i s and Everhart (1892: 647) on bark,  His c o l l e c t i o n (0M-28) on rotten wood, Comox, examined here has  a s c i 90-105 x 6-7 jx l a r g e r than i n the description, spores 9-13.5;<ajir 4.5f  6jx.  I t i s very close to H. multiforme F r . M i l l e r (1933 : 324) created  H. cinereo-lilacinum usuing E l l i s ' s specimens of E. atropurpureum as type} he considers E l l i s ' s determinations as misunderstanding of the o r i g i n a l species.  173. H. eoncurrens B.& 36).  C?  ;  0n dead wood, s t e r i l e , Hastings, l e g . J.Macoun  (QM-  "Mr. E l l i s mentions only two  J.Dearness says of t h i s c o l l e c t i o n :  records of H. eoncurrens - Carolina and C a l i f o r n i a .  This was probably  referred to him, i n which case i f he had thought i t H. eoncurrens he would l i k e l y have recorded i t . " H. crustaceum Mitschke. No specimens seen.  L i s t e d by E l l i s and Everhart  (1892: 652) on decorticated wood, B r i t i s h Columbia H. perforatum (Schw.) Sacc. unnumbered, March 24, 1915). description.  (Macoun).  On poplar, Saanichton, l e g . J.Macoun (QMAsci are longer (108-120 x 10-12 yi), than i n  I f t h i s determination i s correct, the species i s i d e n t i c a l  with H. rubiginosum F r .  ( M i l l e r 1928: 315).  H. ?pruinatum (KLotsche) Gke. no p e r i t h e c i a seen.  On Populus tremuloides Michx., causing canker,  Collected and t e n t a t i v e l y determined by  D.C.Buckland,  Green Lake, 70 Mile House (U-74).  X y l a r i a H i l l . ex.Grev. Stromata erect or ascending, c y l i n d r i c a l , clavate, f i l i f o r m , often compressed, simple or branched, black outside, mostly white within; p e r i t h e c i a immersed i n stroma, more or l e s s prominent, globose or ovate, o s t i o l e papi l l i f o r m ; asci c y l i n d r i c a l , eight-spored; spores e l l i p s o i d or fusoid, continuous, black or brown, mostly inequilateral..  X. Hypoxylon (L.) Grey.  (Plate VI, fig.25, fig.46)  Stipe v i l l o s e , s t e r i l e ,  f e r t i l e portion clavate or flattened, branched or simple, apex s t e r i l e ; asci c y l i n d r i c a l , long stalked, 75-93 x 6-7.5 jx  t  narrow e l l i p s o i d , i n e q u i l a t e r a l . leg.  p.sp; spores 12-15 x 4.5-7.5 ji,  On Alnus oregona Nutt., Lake  Cowichan,  G.P. Thomas (U-307), North Vancouver, l e g . S.Brown-John (H-1853),  174,  U.B.C., l e g . W.A.Eorter (U-129); on rotten wood, U.B.C. (H-1859); three c o l l e c t i o n s from Sidney c o l l e c t e d by J.Macoun, conidial stage only (OM-19, OM-20, OM-46). X y l a r i a sp. No a s c i or spores seen. X. arbuscula or X. apiculata. (OM-67).  Dearness would leave i t under  On rotten wood, Cedar H i l l , l e g . J.Macoun  175,  HOST INDEX  The hosts or substrates o f the fungi l i s t e d have been determined as accurately as possible*  Names given i n the host index are i n accord-  ance with Bailey's Manual of Cultivated Plants (1949), Peck's F l o r a of Oregon (1941), or Abrams' F l o r a of the P a c i f i c States (1940, 1944,  1951),  with the exception of c e r t a i n genera which have been recently monographed. Hosts are arranged alphabetically.  Fungus names are followed by the number  of the page on which they appear.  Abies amabilis L i n d l . Herpotriehia nigra, 58 H e r p o t r i c h i e l i a sp.,  59  Abies grandis L i n d l . Creonectria Cucurbitula, 39 Herpotriehia nigra, 58 Abies l a s i o c a r p a (Eook.) Nutt. Acanthonitschkea coloradensis, Dimerosporium A b i e t i s , 30 Herpotriehia nigra, 58 Rehmiellopsis  a b i e t i s , 99  Acer eircinatum Pursh. Creonectria coccinea,  38  Acer macrophyllum Pursh. Creonectria coccinea,  38  Creonectria purpurea, 40  65  176. Acer macrophyllum cont. Gnomonia setacea, 149 Hypozylon ustulatum,  172  Mycosphaerella punctiformis, 87 Uncinula a c e r i s , 27 Acer spp. Creoneetria mammoidea, 39 Diaporthe eres, 157 Protoventuria vancouverensis,  140  S t r i e k e r i a obducens, 69 Trematosphaeria  ? f i s s a , 70  Uncinula a c e r i s , 27 Uncinula circinatum, 27 A c h i l l e a borealia Bong. Mycosphaerella Tassiana, 89 A c h i l l e a lanulosa Nutt. Pleospora asymmetries, 127 A c h i l l e a M i l l e f o l i u m L. Mycosphaerella Tassiana,. 89 Pleospora herbarum, 132 Agoseris aurantiaca (Hook.) Greene Sphaerotheca humuli var. f u l i g l n e a , 26 Agoseris glauca (Nutt.) Greene Sphaerotheca humuli var. f u l i g i n e a , 26 Agoseris gracilens (Gray) Greene Mycosphaerella Tassiana, 89  177. Agropyron cristatum (L.) Gaertn. Claviceps purpurea, 45 Agropyron 1atiglume  (Scribn. & an.) Rydb.  Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera, 135 Agropyron repens (L.) Beauv. Erysiphe graminis, SO Agropyron spicatum (Pursh.) Rydb. Leptosphaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Agropyron trachycaulum  (Link.) Malta  Pleospora (Pyrenophora)- sp., 140 Agropyron trachycaulum  (Link.) Malte var. u n i l a t e r a l e (Cassidy) Malta  Pleoapora h e l v e t i c a , 131 Agroatis alba L . Leptosphaeria culmifraga, 110 Agroatis hiemalis (Walt.) B.S.P. Mycosphaerella Tasaiana, 89 Agrostis hiemalis (Walt.) B.S.P. var. geminata (Trin.) Hitchc. Laestadia graminicola, 75 Agrostis humilis Vasey Pleospora sp., 139 Agrostis Rossae Vasey Leptosphaeria culmifraga, 110 (  Pleospora (Clathrospora) pentamera, 135  Agrostis scabra W i l l d . Leptosphaeria culmifraga, 110  178. Agrostis s t o l o n i f e r a L. Mycosphaerella Tassiana, 89 Allium Gepa L. Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 Allium cernuum Roth Mycosphaerella Tassiana, 89 Allium Schoenoprasum L. var. sibiricum (L.) Hartm. Mycosphaerella Tassiana, 89 Alnus oregona Nutt. Creonectria pithoides, 39 Creonectria purpurea, 40 Didymosphaeria  oregonensis, 106  Eutypella s t e l l u l a t a , 159 . Gnomonia Caryae,  148  Gnomonia setacea, 149 Hypoxylon fuscum, 171 Hypozylon multiforme, 171  ) Melanconis thelebola, 163 Melanomma pulvie«pyrius, 63 Mycosphaerella punctiformis, 87 P h y l l a c t i n i a . c o r y l e a , 23 Sphaerulina A l n i fm. minor, 100 S t r i c k e r i a bbducens, 69 X y l a r i a Hypoxylon,  173  Alnus sitchensis Sarg. . Didymosphaeria oregonensis, 106 Melanconis a l n i , 163 P h y l l a c t i n i a corylea,  23  S t r i c k e r i a obducens, 69 Alnus spp. B e r t i a morifoimis, 61 Diatrype disciformis,  166  Diatrype Macounii, 166 D i a t r y p e l l a Tocciaeana, 167 Erysiphe aggregata, 19 Eutypella s t e l l u l a t a , 159 Hypoxylon multiforme, 171 Hypoxylon ustulatum, 172 Hypoxylon vogesiacum,  172  Amarantbus sp. Melanospora Townei, 41 Amelanchier a l n i f o l i a Nutt. Apipsporina C o l l i n s i i , 57 P h y l l a c t i n i a corylea,  23  Amelanchier f l o r i d a L i n d l . Apiosporina C o l l i n s i i , 57 Amelanchier  spp.  Apiosporina C o l l i n s i i , 57 Calosphaeria princeps, 165 S t r i c k e r i a Amelanchieris, 68  Anaphalls margaritacea (L.) D.& H. Mycosphaerella Tassiana, 89 Pleospora h e l v e t i c a , 131 Andropogon scoparius Michx. Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera,135 Anemone Drummondii Wats. Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, 136 Anemone globosa Nutt. Mycosphaerella Tassiana, 89 Pleospora comata, 129 Anemone m u l t i f i d a P o i r . a f f i n i s hudsoniana Mycosphaerella Tassiana, 89 Pleospora coloradensis, 128 Pleospora comata, 129 Antennaria anaphaloides,Rydb. var. genuina Boivin Pleospora herbarum var. o c c i d e n t a l i s , 133 Pleospora oligasca, 134 Antennaria dimorpha T.& G. Pleospora herbarum var. o c c i d e n t a l i s , 133 Pleospora oligasca, 134 Antennaria Howellii Greene Pleospora oligasca, 134 Antennaria media Greene Mycosphaerella Tassiana, 89 Pleospora asymmetries, 127  181. Antennaria microphylla Rydb. Pleospora oligasca, 134  1  •  Pleospora Tragacanthae, 136 Antennaria rosea Greene Mycosphaerella Tassiana, 89 Pleospora oligasca, 134 Antennaria umbrinella Rydb. Pleospora herbarum var. oecidentalis, 133 Pleospora oligasca, 134 Aplopappus Brandegei Gray Mycosphaerella Tassiana, 89 Pleospora asymmetrica, 127 Venturis sp., 144 Aplopappus l y a l l i i Gray Physalospora sp., 122 Pleospora camata, 129 Aquilegia b r e v i 3 t y l a Mycosphaerella coerulea, 81 Mycosphaerella Tassiana, 89 Aquilegia formosa F i s c h . Erysiphe polygon!, 20 Mycosphaerella coerulea, 81 Mycosphaerella Tassiana, 89 Pleospora Compositarum, 130 Pleospora herbarum, 132 Arabia canescans Nutt. Mycosphaerella Tassiana, 89 Pleospora comata, 129  1 Q  Arabia Drummondii Gray Leptosphaeria tenera, 114 Mycosphaerella Tassiana, 89 Arabis h i r s u t a (L.) Scop. var. glabrata Mycosphaerella punctifonanis var. Clematidis, 87 Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) planispora, 136 Arabis H o l b o e l l i i Hornem. Pleospora (Clathrospora) planispora, 136 Arabia L y a l l i i Wats. Mycosphaerella Tassiana, 89 Arbutus Menziesii Pursh. Mycosphaerella arbuticola, 80 Arctagrostis l a t i f o l i a (B.Br.) Griseb. Mycosphaerella Tassiana, 89 Pleospora macrospora, 133 Arctoataphyloa columbiana Piper Guignardia ? V a c c i n i i , 76 Arenaria c a p i l l a r i s P o i r . Mycosphaerella Tassiana, 89 Arenaria c a p i l l a r i s P o i r . var. n a r d l f o l i a Mycosphaerella punctiformis var. Clematidis, 87 Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, 136 Arenaria formosa F i s c h . Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, 136  2.  Arenaria obtusiloba (Rydb.) Pern. Leptospbaeria sp., 115 Mycosphaerella dolichospora, 82 Pleospora embigua var. C r a n d a l l i i , 126 Pleospora Tragacanthae,  136  Arenaria verna L. var. propinqua  Fern.  Mycosphaerella Tassiana, 89 Pleospora Tragacanthae,  136  Armaria maritima W i l l d . Pleospora herbarum, 132 Arnica l a t i f o l i a Bong. Diaporthe A r c t i i ,  156  Didymella D e l p h i n l i ,  104  Leptospbaeria sp., 115 Mycosphaerella Tassiana, 89 N e c t r i e l l a sp., 43 Artemisia borealls P a l l l • Pleospora comata, 129 Artemisia 1ongepedunculata Rydb. Mycosphaerella e r i o p h i l a , 83 Pleospora asymmetrica, 127 Artemisia t r l d e n t a t a Nutt. Lophiostoma appendiculatum, 71 R o s e l l i n i a o v a l i s , 64 S t r i c k e r i a obducens, 69 Artemisia vulgaris L» var. d i s c o l o r (Dougl.) Peck Mycosphaerella Tassiana, 89 Pleospora angustata,  126  Aster conspicuus L i n d l . Mycosphaerella Tassiana, 89 Aster MacCallae Rydb. Erysiphe cichoracearum, 19 Aster novae-angliae L . Erysiphe cichoracearum, 19 Aster spp. Erysiphe cichoracearum, 19 Pleospora herbarum var. o c c i d e n t a l i s , 133 Astragalus eampestris Mycosphaerella Tassiana, 89 Pleospora coloradensis, 128 Pleospora (Clathrospora) permunda, 136 Astragalus glareosus Dougl. Mycosphaerella Tassiana, 89 Pleospora asymmetrica, 127 Astragalus Macounii Rydb. A s t e r e l l a ?Hellebori, 33 Mycosphaerella Tassiana, 89 Venturia sp., 144 Avena s a t i v a L . Claviceps purpurea, 45 Erysiphe gramlnis, 20 Ophiobolus c a r i c e t i , 119 Balsamorrhlza sp. Mycosphaerella Tassiana, 89 Pleospora v u l g a r i s , 138  Beta v u l g a r i s L .  (Mangel)  P e t r i e l l a asymmetrica,  30  Sordaria setosa, 56 Betula f o n t i n a l i s Sarg. Daldinia concentrica, Diatrype  169  stigma, 166  D i a t r y p e l l a betulina, 167 Betula o c c i d e n t a l i s Hook. Daldinia occidentals, 169 D i a t r y p e l l a betulina, 167 Eutypella s t e l l u l a t a , 159 Valsa sp., 162 Betula papyrifera Marsh. Trichosphaeria ?breviseta, 60 Betula  spp.  Daldinia occidentals, 169 Hypoxylon fuscum, 171 Hypoxylon multiforme, 171 N e c t r i a sanguinea,  42  Valsa ceratophora, 161 Bidens cernua L . Sphaerotheca humuli var. f u l i g i n e a , Brassica oleracea L . var. acephala DC. Erysiphe polygoni,  20  Brassica oleracea L . var. b o t r y t i s L . Mycosphaerella b r a s s i s i c o l a , 80  Brassica oleracea L. var. capitata L. Mycosphaerella b r a s s i c i c o l a , 80 B r a s s i c a oleracea L . var. gemmifera Zenker Mycosphaerella b r a s s i c i c o l a , 80 Brassica oleracea L . var. italicaPlenchk. Mycosphaerella b r a s s i c i c o l a , 80 Brassica spp. Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 Bromus inermis Leyss. Claviceps purpurea, 45 Bromu3 p o r t e r i (Coult;.) Nash Mycosphaerella Tassiana, 89 Calamagrostis canadensis (Michx.) Beauv. Claviceps purpurea, 45 Leptospbaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Calamagrostis Inexpansa Gray Mycosphaerella Tassiana, 89 Calamagrostis neglecta (Ehrk.) Gaertn. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Calamagrostis purpuraseens R.Br. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera, 135  Calamagrostis rubescens Buckl. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 8S Calamagrostis Suksdorfii (Link.) T r i n . Mycosphaerella Tassiana, 89 Calamovilfa l a t i f o l i a (Hook.) Scribn. Leptosphaeria culmorum, 111 Callistephus sp. Erysiphe cichoracearum, 19 Camellia sp. Leptosphaeria Camellias, 109 Campanula ?Media L« Lae stadia?c ircumte gens,K7 5 1 r Mycosphaerella Tassiana,.89 Campanula sp. Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 Carex aerie a Fern. Leptosphaeria consobrina, 110 Carex albonigra Mack, Mycosphaerella Tassiana, 89 Carex angarae Steud. Mycosphaerella Tassiana, 89 Carex aperta Boott. Pleospora (Clathrospora) pentamera, 135 Carex s t r a t a L . Mycosphaerella Tassiana, 89  Carex atratiforrais B r i t t .  i. Leptosphaeria epicarecta, 112 Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) Elynae, 131 Carex aurea Mutt* Mycosphaerella Tassiana, 89 Carex brunnescens (Pers.) P o i r . Leptosphaeria consobrina, 110 Carex diandra Schrank. Leptosphaeria JSApogon, 1G9 Leptosphaeria petkovicensis, 113 Mycosphaerella perexigua, 86 Carex f e s t i v e l l a Mack, (aff.) Claviceps Grohii, 44 Carex flava,L. Mycosphaerella (Sphaerella) p u s i l l a , Mycosphaerella Tassiana, 89 Mycosphaerella Wichuriana, 98 Carex Hoodii Boott. Leptosphaeria ?Apogon, 109 Pleospora discors, 131 Carex limoaa L. Mycosphaerella l i n e o l a t a , 84 Carex phaeocephala Piper Mycosphaerella Tassiana, 89  Carex p r a e g r a c i l i s Boott. Mycosphaerella Tassiana, 89 Mycosphaerella Wiehuriana, 96 Pleospora (Clathrospora) sp., 138 Carex pyrenaica Wahl. Leptosphaeria petkovicensis, 113 Mycosphaerella c a r i c i c o l a , 81 Mycosphaerella Tassiana, 89 Carex sitchensis Prescott Leptosphaeria ? L o l i i , 113 Carex s t e l l u l a t a Good. Claviceps Grohii, 44 Carex spp. Massaria macrotheca, 145 Mycosphaerella Wiehuriana, 96 Cassiope S t e l l a r i a n a DC. Venturia m y r t i l l i , 143 Cassiope sp. Leptosphaeria Audrcmedae, 108 Castanea sativa Sarg. Endothia p a r a s i t i c a , 168 C a s t i l l e j a lutescans (Greenm.) Rydb. Sphaerotheca hamuli var. fuliginea,26 C a s t i l l e j a miniata Dougl• Mycosphaerella Tassiana, 89 Pleospora comata, 129  190. Castilleja  spp.  Mycosphaerella Tassiana, 89 Sphaerotheca humuli var. f u l i g i n e a ,  26  Centaurea Jacea Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 , Chaenomeles lagenaria Koidz.  (Japanese  quince)  Creoneetria purpurea, 40 Chamaecyparis nootkatensis (Lamb.) Spach. Lophiotrema ?nucula, 72 Cheiranthus sp. Mycosphaerella Tassiana, 89 Chimaphila umbellata (L.) Nutt. Mycosphaerella (Sphaerella) Chlmaphilae, 81 Chiogenes h i s p i d u l a (L«) Torr. & Gr. Microsphaera a l n i var. v a c c i n i i ,  22  Choisya ternata HBK. Creoneetria purpurea, 40 Chrysanthemum spp. Erysiphe cichoracearum, 19 Mycosphaerella Tassiana, 89 Chrysopsis v i l l o s a (Pursh.) Nutt. var. h i s p i d a (Nutt.) Gray Pleospora comata, 129 Cichorium Intybys L . Mycosphaerella Tassiana, 89 Pleospora herbarum, 132  191. Cirsium arvense  (L.t Scop.  Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) baccata, 127 Cirsium Hookerianam Nutt. Mycosphaerella Tassiana, 89 Cirsium lanceolatum  (L.) Scop.  Mycosphaerella punctiformis var. d e m a t i d i s , 87 Ophiobolus  acuminatus, 118  Pleospora (Clathrospora) baccata,  127  Cirsium spp. Mycosphaerella punctiformis var. Clematidis, 87 Ophiobolus  acuminatus, 118  Pleospora herbarum, 132 Comandra p a l l i d a  DC.  Erysiphe polygoni, 20 Coreopsis grandiflora Sphaerotheca humuli var. fuLiginea, 26 Coreopsis sp. Sphaerotheca humuli var. f u l i g i n e a , 26 Cornus N u t t a l l i i  Aud.  Mycosphaerella ?Auerswaldii, 80 P h y l l a c t i n i a corylea• 23 Cornus pubescens Nutt• P h y l l a c t i n i a corylea, 23 Cornus s t o l o n i f e r a Michx. P h y l l a c t i n i a corylea, 23  192. Corylus C a l i f o r n i e a (A.DC.J) Rose Gnomoniella  C o r y l i , 151  Melanomma pulvis-pyrius, 63 Corylus r o s t r a t a A i t . Gnomoniella C o r y l i , 151 Corylus spp. Gnomoniella C o r y l i , 151 Hypoxylon fuscum, 171 P h y l l a c t i n i a corylea, 23 Crataegus sp. P h y l l a c t i n i a corylea, 23 Crepis atribarba H e l l e r Mycosphaerella Tassiana, 89 Cucumis melo L . P e t r i e l l a asymmetrica, 30 Cucumis spp. Erysiphe cichoracearum, 19 Qucurbita maxima Duch. Mycosphaerella Tassiana, 89 Sordaria f i m i c o l a , 55 Cytisus sp. Leptosphaeria C a l i f o r n i e a , 109 D a c t y l i s glomerata L . Erysiphe graminis, 20 Leptosphaeria culmorum, 111 Phyllachora graminis, 50 D  193. Danthonia c a l i f o r a i c a Boland var. americana (Scribn.) Hitehe. Mycosphaerella Tassiana, 89 Danthonia intermedia Yasey Leptosphaeria culmorum, 111 Daucus carota L. Sordaria f imicola, 55 Delphinium Brownii Rydb. Metasphaeria ?zobeliana, 118 Delphinium sp. Erysiphe cichoracearum,' 19 Erysiphe polygon!, 20 Mycosphaerella Tassiana, 89 Deschampsia atropurpurea (Wahl.) Scheele Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Deschampsia elongata (Hook.) Munro ex Benth. Mycosphaerella Tassiana, 89 Dianthus sp. Laestadia ?circumtegens, 75 Dhporthe columbiensis E l l . & Ev. Nectria episphaeria, 42 Diatrype Macounii E l l . & Ev. N e c t r i a episphaeria, 42. Diatrype sp. Melanomma parasiticum, 62  D i g i t a l i s sp. Pleospora herbarum,  132  D i s t i c h l i s spicata (L.) Gaeehe Mycosphaerella graminicola, 83 D i s t i c h l i s spicata (L.) Greene var. s t r i c t a (Gray) Beetle Mycosphaerella graminicola, 83 Draba alpina L . Mycosphaerella c o n f i n i s , 82 Mycosphaerella Tassiana, 89 Pleospora h e l v e t i c a , 131 Draba i n c e r t a Pays. Mycosphaerella Tassiana, 89 Draba Paysonii Macbr. Mycosphaerella Tassiana, 89 Pleospora h e l v e t i c a , 131 Draba Paysonii Macbr. v a r . ' T r e l e a s l i (Schulz) Hitchc. Acrosper$um ccmpressum, 37 Pleospora Composttarum, 130 Draba praealta Greene Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, 136 Draba stenoloba Ledeb. Leptosphaeria tenera, 114 Mycosphaerella Tassiana, 89 Pleospora asymmetrica, 127  Dryas Drummondii Rich. Massarina Dryadis, 146 Dryas octopetala L . Pleospora o l i g a s c a , 134 Dryopteris sp. Microthyrium  ?microscopicum,D55:  Elymus arenarius L . Claviceps purpurea, 45 Elymus canadensis L . Claviceps purpurea, 45 Elymus condensatus P r e s l • Claviceps purpurea, 45 Phyllachora graminis, 50 Elymus glaucus Buckl. Claviceps purpurea, 45 Elymus innovatus Beal Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Pleospora macrospora, 133 Elymus Macounii Vasey Claviceps purpurea, 45 Leptosphaeria culmifraga, 110 Leptosphareia culmorum, 1111 Elymus sp. Claviceps purpurea, 45  Epilobium angustifolium L. Diaporthe pardolata. 158 Didymella fenestrans, 104 Mycosphaerella  (Sphaerella) m i c r o s p i l a , 85  Mycosphaerella minor, 85 Erigeron a c r i s L» var. asteroides (Andrz.) DC. Pleospora Tragacanthae,  136  Erigeron aurea var. typicus Cronq.. Pleospora Tragacanthae,  136  Erigeron compositus Pursh. Pleospora Tragacanthae,  136  Erigeron compositus Pursh. var. glabratus Macoun Pleospora njegusensis, 134 Pleospora Tragacanthae,  136  Erigeron corymbosus Nutt. Pleospora Compositarum, 130 Erigeron f i l i f o l i u s (Hook.) Nutt. Pleospora Balsamorrhizae, 128 Pleospora Campositarum, 130 Erigeron l i n e a r i s (Hook.) Piper Laestadia circumtegens, Mycosphaerella  Tassiana*-89  Pleospora comata, 129 Erigeron lonchophyllus Hook. Pleospora  75  comata,129  Erigeron pumilus subsp. intensedius fclivoi'Mycospliaerella Tassiana, 89 Pleospora Compositarum, 130 Erigeron apeciosus DC. var. macranthus (Nutt.) Cronq. Leptosphaeria agnita, 108 Pleospora Compositarum, 130 Erigeron speciosus DC. var. typicus Cronq. Mycosphaerella, Tassiana, 89 Erigeron spp. Mycosphaerella e r i o p h i l a , 83 Mycosphaerella punctifammis var. Clematidis, 87 Mycosphaerella Tassiana, 89 Pleospora asymmetrica, 127 Pleospora comata, 129 Pleospora herbarum, 132 Pleospora v u l g a r i s , 138 Eriogonum heracleoides Nutt. Mycosphaerella Polygonorum, 86 Eriogonum subalpinum Greene Pleospora oligasca, 134 Eriogonum umbellatum Torr. Pleospora oligasca, 134 Eutypella s t e l l u l a t a (Fr.) Sacc. N e c t r i a episphaeria, 42  Festuca a t t a i c a T r i n . Leptosphaeria sp., 115 Mycosphaerella Tassiana, 89 Physalospora sp., 122 Festuca e l a t i o r L« Claviceps purpurea, 45 Festuca idahoensis Elmer Mycosphaerella Wiehuriana, 96 Festuca ovina L. Mycosphaerella Tassiana, 89 Festuca ovina L . var. brachyphylla (schult.) Piper Mycosphaerella Tassiana,.89 Festuca p a c i f i c a Piper Mycosphaerella Tassiana, 89 Festuca rubra L» Mycosphaerella Tassiana, 89 Phyllachora s i l v a t i c a , 50 Ficus sp. Creonectria purpurea, 40 Fomes p i n i c o l a , (Fr.) Cke* Hyppmyces aurantius, 47 Fragaria chiloensis (L.) Duch. Mycosphaerella (Sphaerella) e a r l i a n a , 82 Mycosphaerella Fragariae, 83 Fragaria sp. Sphaerotheca humuli, 25  199. G a l l l a r d i a a r i s t a t e Pursh. Mycosphaerella  Tassiana, 89  Pleospora angustata, Pleospora sp.,  126  139  Gaultheria Shallon Pursh. A s t e r e l l a Gaultheriae, 32 Leptosphaeria Gaultheriae,  112  Gentiana calycosa Griseb. Sphaerulina Gentianae, 100 Venturia a t r i s e d a , 142 Geranium erianthum ( Mycosphaerella  DC.  Tassiana*  89  Geranium pusillum Burm.f. Stigmatea Robertiani, 35 Geranium viscosissimum  Fisch. &  Mey.  Sphaerotheca humuli, 25 Geum t r i f l o r u m Pursh. Pleospora oligasca, 134 G i l i a l i n e a r i s Gray Sphaerotheca humuli, 25 Heuchera glabra W i l l d . Mycosphaerella  punctiformis var. Clematidis, 82  Sphaerotheca humuli, 25 4  Hieraceum Albertinum  Farr  Pleospora herbarum var. o c c i d e n t a l i s , 133  Hierae&um aurantiacum L . Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 Hieracium gracile Hook. Mycosphaerella Tassiana, 89 Hierochloe alpina (Swarta.) Hoem. Mycosphaerella Tassiana, 89 Hierochloe b o r e a l i s Roem. & Schult. Mycosphaerella Tassiana, 89 Hierochloe•odorata (L.) Beauv. Mycosphaerella Tassiana, 89 Holcus lanatus L. Epichloe typhina, 46 Holodiscus d i s c o l o r (Pursh.) Maxim. P h y l l a c t i n i a corylea, 23 Hordeurn vulgare L . Claviceps purpurea, 45 Erysiphe graminis, 20 Hordeum sp. Erysiphe graminis, 20 Hydrangea sp. Mycosphaerella Tassiana, 89 Hypoxylon sp. N e c t r i a episphaeria, 42 I r i s germanica L . Laestadia ?circumtegens, 75 Mycosphaerella Tassiana, 89  201. I r i s gerxnanica corit. Pleospora Ccmpositarum, 130 Pleospora herbarum, 132 I r i s sp. Didymellina macro sp or a, 105 Juncus Drummondii Meyer Leptosphaeria petkovicensis, 113 Mycosphaerella c a r i c i c o l a , 81 Mycosphaerella Tassiana, 89 Phomatospora therophila, 121 Juncus P a r r y i Engelm. Leptosphaeria petkovicensis, 113 Juniperus scopulorum Sarg. Microthyrium J u n i p e r i , 35 Juniperus s i b i r i c a Burgad. Microthyrium Juniper 1, 35 K o e l e r i a o r i s t a t a (L.) Pars. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 L a c t a r i a sp. Hypomyces Lactifluorum, 47 Lactuca s c a r i o l a L. Erysiphe cichoracearum,  19  Sphaerotheca humuli var. f u l i g i n e S j 26 Lactuca spicata (Lam.) Hitchc. Sphaerotheca humuli var. f u l i g i n e a , 26  Lathyrus ochroleucus Hook* Erysiphe polygoni, 20 Lathyrus odoratus L, Mycosphaerella Tassiana, 89 Pleospora herbaium* 152 Lathyrus sp, Erostrotheca multiformis, 37 Ledum glandulosum Nutt, Leptosphaeria sp., 115 Ledum groenlandicum  Oedr,  Leptosphaeria sp., 116 Pleospora (Catharinia) sp,, 138 Venturis ?Cassandrae, 142 Linnaea borealis L, var, americana (Forbes) Render Venturis D i c k i e i , 142 Linun L e w i s i i Pursh, Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, 136 Lolium perenne L, Claviceps purpurea, 45 Lomatium ambiguum (Nutt. C.& R. Mycosphaerella Tassiana, 89 Lonicera involucratum Banks Leptosphaeria dumetorum, 112 Ophiobolus minor, 119 Protoventuria sp*, 140  Lonicera sp. Microsphaera  a l n i var. l o n i c e r a e , 22  Lotus denticulatus (Drew) Greene  (Hosackia denticulata Drew)  Erysiphe polygoni, 1)20 Lupinus l a t i f o l i u s Agh. yar. subalpinus (Piper & Robins.) C.P.Sm. Leptosphaeria agnita, 108 Mycosphaerella Tassiana, 89 .:• H e c t r i e l l a sp., 43 Pleospora asymmetrica, 127 Lupinus L y a l l i i Gray Mycosphaeeella Tassiana, 89 Pleospora Tragacanthae, 136 Lupinus polyphyllus L i n d l . Erysiphe polygoni, 20 Lupinus perennis L. Erysiphe polygoni, 20 Lupinus sericeus Pursh> Mycosphaerella Tassiana, 89 Lupinus spp. Erysiphe polygoni* 20 Laestadia ?circumtegens*  75  Mycosphaerella Tassiana, 89 Pleospora herbarumj 132 Luzula campestris  (L.)  DC.  Pleospora discors, 131 Luzula P i p e r i (Cov.) M.E.Jones Mycosphaerella Tassiana, 89  804. Luzula spicata (L.) DC. Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) Elynae, 131 Luzula Wahlenbergii  Rup.  Mycosphaerella Wiehuriana,  96  Lychnis- Coronaria Desr. Mycosphaerella Tassiana, 89 Pleospora herbarum, 138 Lycopersicum  esculentum M i l l .  Mycosphaerella Tassiana, 89 Matthiola sp. Erysiphe polygon!,  80  Medicago s a t i v a L. Pseudoplea T r i f o l i i ,  99  Melanconis thelebola (Fr.) Sacc. N e c t r i a episphaeria, 48 M e l l l o t u s sp. Leptosphaeria pratehsis, 113 Monarda m o l l i s L. Mycosphaerella Tassiana,. 89 Myrica Gale L. Uncinula s a l i c i s , 88 N u t t a l l i a cerasiformis T.&  G.  Diaporthe columbiensis,  157  Oenothera biennis L . Laestadia ? circumtegens,  75  Mycosphaerella Tassiana, 89 Pleospora herbarum, 138  205. Oenothera spp. Erysiphe cichoracearum, 19 Pleospora herbarum, 132 Oryzopsis a s p e r i f o l i a Miehx. Mycosphaerella Tassiana, 89 Oryzopsis hymenoides (R.& S.) Bicker Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera, 135 Oryzopsis pungens (Torr.) Hitchc. Mycosphaerella Tassiana, 89 Mycosphaerella Wiehuriana, 96 Oxyria digyna (L.) Camptdera Chaetomium ? s p i r a l e , Coleroa Oxyriae,  52  58  Oxytropis a l p i c o l a (Rydb.) Jones Leptosphaeria sp., 116 Pleospora comata, 129 Pleospora sp., 139 Oxytropis O u s i c k i i Greenm. Pleospora Tragacanthae, 136 Pachystima myrsinites Raf• Mycosphaerella Pachystimae, 85 Panicum occidentale S c r i b . Leptosphaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Panicum thermale Boland Leptosphaeria culmorum, 111  206. Parthenocissus sp. Uncinula necator, 28 P e d i c u l a r i s bracteosa Benth. Apiosporella alpina, 102 Mycosphaerella Tassiana, 89 Pleospora Tragacanthae, P e d i c u l a r i s paddoensis  136  Pennel  ?Massarinia sp., 146 Mycosphaerella Tassiana,, 89 Penstemon e l l i p t i c u s Coult. & Fisher Venturis sp., 144  .  Penstemon fruticosus (Pursh.) Greene Dimerium alpinum, 29 Penstemon ovatus Dougl. Mycosphaerella Tassiana, 89 ' Penstemon tolmiel Hook. Pleospora herbarum var. o c c i d e n t a l i s , 133 Penstemon sp. Erysiphe cichoracearum, 19 Phacelia leptosepala Hydb. Ophiobolus rudis, 120 P h a c e l i a leucophylla Torr. Mycosphaerella Tassiana, 89 Pleospora coloradensis, 128 Pleospora v u l g a r i s , 138 Venturia SP*» 145  Bhacelia aericea Gray Pleospora comata, 129 Pleospora Tragacanthae,  136  Phalaria arundinacea L. Leptosphaeria culmicola, 110 Phaseolus coeeineus L .  (Scarlet runner bean)  Melanospora p a p i l l a t a , 41 Phleum alpinum L . Asterula sp.,33 Leptosphaeria eustoma, 112 Mycosphaerella Tassiana, 89 Phleum pratense L . Claviceps purpurea, 45 Phlox d i f f u s a Benth. Mycosphaerella Tassiana, 89 N e c t r i e l l a sp., 43 Pleospora comata, 129 Phlox Douglas!i Hook. Mycosphaerella Tassiana, 89 Pleospora comata, 129 Bhlox l o n g i f o l i a Nutt. Pleospora (Clathrospora) diplespora, 130 Pleospora (Clathrospora) permunda, 136 Phlox r i g i d a Benth. Pleospora comata, 129 Pleospora (Clathrospora) permunda, 136 Phlox speciosa Pursh. Lophiostoma caulium, 71  Phlox specipsa cont• Pleospora comata, 129 Phlox sp. Erysiphe cichoracearum,  19  P i c e a sitchensis (Bong.) Carr. Herpotrichia n i g r a , 58 Pinus monticola Dougl. Ceratostomella sp., 65 • Cucurbidothis pithypphila, 48 Pinus ponderosa Dougl. R o s e l l i n i a obliquata var. Americana Pisum sativum L. Erysiphe polygoni, 20 Mycosphaerella pinodes,  86  Pleospora herbarum, 132 Pisum sp. Erysiphe polygoni, 20 Plantago major L. Erysiphe cichoraeearum, 19 Platanus o c c i d e n t a l i s L . Gnomonia veneta, Platanus  150  sp.  Gnomonia veneta,  150  Poa a l p i n a L. Leptosphaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Pleospora h e l v e t i c a , 13B  Poa ampla Merr. Leptosphaeria culmorum, 111 Mycosphaerella Wiehuriana, 96 Pleospora diseors, 131 Poa a r c t i c a H.Br. Mycosphaerella Tassiana, 89 Poa compressa L . Leptosphaeria eulmifraga, 110 Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera, 135 Poa c o n f i n i s Vasey Mycosphaerella Tassiana, 89 Pleospora diseors, 131 Poa glauca Vahl. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Pleospora h e l v e t i c a , 131 Poa g r a c i l l i m a Vasey Leptosphaeria culmorum, 111 Pleospora a r c t i c a , 126 Poa i n t e r i o r Rydb. Metasphaeria Poae, 117 Mycosphaerella Tassiana, 89 Mycosphaerella Wiehuriana, 96 Pleospora (Clathrospora) pentamera, 135  210. Poa lettermanni Vasey Mycosphaerella Tassiana, 89 Poa nemoralis L . Leptosphaeria culmifraga, 110 Poa nervosa (Hook.) Vasey Leptosphaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Poa p a l u s t r i s L . Leptosphaeria culmifraga, 110 Poa paucispicula S c r i b . & Merr. Ascospora graminis, 74 Mycosphaerella Tassiana, 89 Poa pratensis L* Mycosphaerella Tassiana, 89 Poa r u p i c o l a Nash Leptosphaeria sp., 116 Pleospora (Clathrospora) sp., 139 Poa secunda P r e s i . Ascospora graminis, 74 Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Poa stenantha T r i n . Leptosphaeria culmifraga, 110 Mycosphaerella Tassiana, 89 Poa spp. Erysiphe graminis, 20 Phyllachora graminis, 50  211. Polemonium californicum Bastw. J  Mycosphaerella Tassiana, 89 Polemonium coeruleum L . subsp. Occidentale (Greene) Davids. Pleospora comata, 129 Polemonium pulcherrlmum Hook. Mycosphaerella Tassiana, 89 Pleospora comata, 129 Polemonium v i s c o 3 u m Nutt, Pleospora comata, 129 Polygonum aviculare L . Erysiphe polygoni, 20 Polygonum erectum L . Erysiphe polygoni, 20 Polygonum ramosi3simum Michx. Erysiphe golygoni, 20 Polygonum P e r s i c a r i a L.. Erysiphe polygoni, 20 Polygonum sp. Erysiphe polygoni, 20 , Polyporua resinosus, F r . Hypamyces aurantius, 47 Polyporus sp. Hypomyces aurantius, 47 Polystichum muniturn (Kaulf.) P r e s i . ?Microthyrium microscopicum, 35 Populus balsamifera L . Linospora sp., 152  Populus deltoides Marsh. Mycosphaerella p o p u l i f o l i a , 86 Populus tremuloides Michx. Hypoxylon fuscum, 171 ?Hypoxylon pruinatum,  173  Mycosphaerella o r b i c u l a r i s , 85 Otthia sp., 66 . Phaeosphaerella maculosa, 98 Uncinula s a l i c i s ,  28  Populus trichocarpa T.&  G.  Diaporthe eres, 157 Diatrype Macounii*  166  Hypoxylon multiforme, 171 Mycosphaerella p o p u l i f o l i a , 86 Uncinula s a l i c i s , Populus  28  spp.  Cryptosphaeria populina, 155 Diaporthe columbiensis, 157 Diatrype Macounii, 166 Eutypella s t e l l u l a t a , 159 Hypoxylon multiforme, 171 ?Hypoxylon perforatum, Otthia sp., 66 Valsa nivea, 161 P o t e n t i l i a dissecta Nutt• Pleospora comata, 129 Pleospora oligasca, 134  173  P o t e n t i l i a d i v e r s i f o l i a Lehm. Asterula sp., 34 Guignardia P o t e n t i l l a e , 75 Mycosphaerella Tassiana, 89 Pleospora comata-, 129 Pleospora oligasca, 134 P o t e n t i l i a emarginata Pursh. Pleospora oligasca, 134 Potent i l i a f l a b e l l i f o l i a Hook. Microthyrium arcticum, 34 Mycosphaerella Tassiana, 89 P o t e n t i l l a N u t t a l l i i Lehm. Mycosphaerella Tassiana, 89 P o t e n t i l l a p a l u s t r i s Scop. Gnomonia p o t e n t i l l a e , 149 Mycosphaerella Fragariae, 83 Mycosphaerella Tassiana, 89 Sphaerotheca humuli, 25 Primula sp. Pleospora herbarum, 132 Prunella v u l g a r i s L . Ophiobolus Rostrupii, 152 Prunus•armeniaca L . var. An da . Dibotryon morbosum, 49 Podosphaera oxyacanthae, 24 Prunus avium L . Podosphaera oxyacanthae, 24  214. Prunus demisaa (Nutt.) D.Dietr. Capronia pieiospora, 103 Dibotryon morbosum, 49 Fenestella princeps, 159 Podospbaera oxyaeanthae, 24 Prunus emarginata (Dougl.) F/alp. Podosphaera oxyaeanthae, 24 Prunus emarginata (Dougl.) Walp. var. m o l l i s (Dougl.) Brewer Mycosphaerellaficinerascens, 81 Prunus p e r s i c a (L.) Stokes Valsa leucostoma, 161 Prunus spp. Dibotryon morbosum, 49 Podospbaera oxyaeanthae, 24 Sphaerotheca pannosa, 26 Pseudotsuga t a x i f o l i a (Lam.) B r i t t o n C a l i c i o p s i s Pseudotsugae, 67 Phaeocryptopus gaumannii, 31 Valsa P i n i , 162 Pteridium aquillnum (L.) Kuhn. Mycosphaerella i n d i s t i n c t a , 84 P u c c i n e l l i a Muttalliana (Schulti.) Hitchc. Laestadia graminicola, 75 Mycosphaerella Tassiana, 89 Pyrus communis L . N e c t r i a galligena, 42 Podosphaeria oxyaeanthae, 24 Venturia pyrina, 143  Pyrus Malus L. Creoneetria purpurea, 40 N e c t r i a galligena, 42 Podosphaera leucotrieha, 24 Valsa ambiens, 161 Yalsa leucostoma, 161 Yenturia inaequalis, 143 Que reus G-arryana Dougl. Microsphaera a l n i , 22 . Ranunculus B3Chscholtzii  Schlecht.  Mycosphaerella Ranunculi, 88 Pleospora asymmetrica,  127  Raphanus sativus L. P e t r i e l l a asymmetrica, 30 Sordaria hypocoproides* 56 Rhus glabra L . Sphaerotheca humuli, 25 S t r i e k e r i a (Cucurbitaria) Typhina, Ribes nigrum L • Sphaerotheca mors-uvae, 26 Ribes sativum Syme Sphaerotheca mors-uyae, 26 Ribes spp. Mycosphaerella Grossulariae, 83 Sphaerotheca mors-uvae, 26  Rosa e e n t i f o l i a L« var. muscosa Ser. Mycosphaerella r o s i c o l a , 88 Rosa spp. Didymella Rauii, 104 . Didymosphaeria ?Borgii, 106 Metasphaeria Macounii, 117 Pieosphaerulina.constricta, 98 Rubus macropetalus  Dougl.  Apiopbrthe vepris, 154 Sphaerotheca humuli, 25 Rubus p a r v i f l o r u s Nutt. Coleroa Chaetcmium, 58 Didymella applanata, 103 Gnomonia depressula, 148 Gnomonia Vepris, 150 MFcosphaerella (Sphaerella) melaena, Sphaerotheca humuli, 25 Rubus s p e c t a b i l i s Pursh. Sphaerotheca humuli, 25 Rubus sp.  (Blackberry)  Leptosphaeria coniothyrium, 109 Mycosphaerella r u b i , 88 Rubus sp.  (Boysenberry)  Mycosphaerella r u b i , 88 Rubus sp.  (Loganberry)  Didymella applanata, 103 Leptosphaeria coniothyrium, 109  Rubus sp. (Raspberry) Ascospora Ruborum, 74 Creonectria purpurea, 40 Didymella applanate, 103 Leptospbaeria coniothyrium, 109 Mycosphaerella r u b i , 88 Sphaerotheca humuli, 25 Sphaerotheca humuli var. f u l i g i n e a , 26 Rubus sp,  (Toungberry)  Mycosphaerella r u b i , 88 Rubus spp. Asterina r u b i c o l a , 33 Valsa ceratophora, 161 Rudbeckia l a c i n i a t a L. Erysiphe cichoracearum, 19 Rumex A c e t o s e l l a L. Mycosphaerella (Sphaerella) melaena, 84 Mycosphaerella Tassiana, 89 Venturia Rumicis, 144 Rumex o b t u s i f o l i u s L. Mycosphaerella stromatoidea, 89 Rumex occidentalis Wats. Mycosphaerella stromatoidea, 89 Rumex spp. Mycosphaerella stromatoidea, 89 Pleospora herbarum, 132  S a l i x babyloniea L. Diaporthe eres, 157 Melanomma cinereum, 62 Physalospora Miyabeana, 121 S a l i x pennata B a l l Leptosphaeria sp., 115 S a l i x saximontana Rydb. Mycosphaerella sp., 97 S a l i x spp. Cryptodiaporthe s a l i c i n a * 155 Diatrype b u l l a t a , 165 Linospora ? i n s u l a r i s , 152 Physalospora Miyabeana, 121 Uncinula s a l i c i s ,  28  Venturia chlorospora, 142 Sambucus sp. Otthia sp., 66 Mycosphaerella sp., 97 Sanicula c r a s s i c a u l i s Poepp. Mycosphaerella Tassiana, 89 Mycosphaerella sp., 97 Pleospora herbarum, 132 Schizachne purpurascens (Torr.) Swallen Mycosphaerella Tassiana, 89 Secale cere ale L. Claviceps purpurea, 45 Erysiphe graminis,  20.  Sedum stenopetalum Pursh* Mycosphaerella Tassiana, 89 Senecio canus Hook. Pleospora oligasca, 134 Senecio integerrimus Nutt. Mycosphaerella Tassiana, 89 Senecio pauperculus Michx. Mycosphaerella punctiformis var. Clematidis, Pleospora Compositarum, 130 Sequoia sempervirens Ehdl. Leptosphaerulina sp., 76 Shepherdia canadensis Nutt* Sphaerotheca humuli, 25 Sibbaldia procumbens L . Microthyrium arcticum, 34 Mycosphaerella (Sphaerella) innumerella, 84 Silene acaulis L . Leptosphaeria Silenes-acaulis, 114 Silene Douglasii Hook. Mycosphaerella Tassiana, 89 Mycosphaerella sp., 97 Pleospora comata, 129 Sisyrinchium angustifolium M i l l e r Mycosphaerella Tassiana, 89 Sitanion h y s t r i x (Nutt.) J.G.Smith Leptosphaeria sp., 115 Mycosphaerella Tassiana, 89  Sol arum nigrum L. Erysiphe cichoracearum, 19 Solidago decumbens- Greene Pleospora Balsamorrhizae, 128 Solidage multiradiata A i t . Mycosphaerella Tassiana, 89 Solidago sp. Erysiphe cichoracearum, 19 Sphenopholis obtusata (Michx.) S c r i b . Mycosphaerella Tassiana Spiraea l u c i d a Dougl• Mycosphaerella (Sphaerella) melaena* Mycosphaerella Tassiana, 89 Spiraea Menziesii Hook. Creoneetria purpurea, 40 Cryptodiaporthe Macounii, 154 S t e l l a r i a longipes Goldie Mycosphaerella Tassiana, 89 Stenanthlum occidentals Gray Mycosphaerella Tassiana, 89 Pleospora comata, 129 Pleospora Compositarum, 130 Stipa columbiana Macoun Mycosphaerella Tassiana, 89  S t i p a comata Tri.ru & Rupr. Mycosphaerella Tassiana, 89 Pleospora (Clathrospora) pentamera, 135 Pleospora (Clathrospora) permunda, 136 Stipa Richardson! Link Mycosphaerella Tassiana, 89 Symphoricarpos albus (L.) Blake Microsphaeria  d i f f u s a , 22  Mycosphaerella Tassiana, 89 Syringa vulgaris L . Pleospora sp,, 139' Tanecetum vulgare L, Mycosphaerella Tassiana, 89 Pleospora herbarum, 132 Taraxacum o f f i c i n a l e Weber Sphaerotheca humuli var, f u l i g i n e a , 26 Taraxacum spp. Sphaerotheca humuli var. f u l i g i n e a , 26 Thuja p l i c a t a D.Don. Mycosphaerella sp., 97 T o f i e l d i a coccinea Rich. Pleospora herbarum var. o c c i d e n t a l i s , 133 T o f i e l d i a glutinosa (Mt.) Pers. Mycosphaerella Tassiana, 89 Trifolium hybridum L . Cymadothea T r i f o l i i , 49 Erysiphe polygoni, 20  T r i f o l i u m pratense L . Cymadothea T r i f o l i i ,  49  Erysiphe polygoni, 20 T r i f o l i u m repens L . Cymadothea T r i f o l i i , 49 . T r i f o l i u m spp. Didymella T r i f o l i i ,  105  Pleospora herbarum, 132 Trisetum spicatum. (L.) Richt. Leptosphaeria culmorum, 111 Mycosphaerella Tassiana, 89 Pleospora a r c t i c a , 126 Pleospora (Pyrenophora) sp., 140 Triticum aestivum L. Claviceps purpurea,  45  Erysiphe graminis, 20 Ophiobolus  cariceti,  119  Tsuga heterophylla (Raf.) Sarg. Dimerosporium Tsugae, 30 Herpotriehia nigra, 58 Hypoxylon aspera, 170 Tsuga sp. Lophiotrema nucula, 72 Typha l a t i f o l i a L . Leptosphaeria Typhae, 114 Leptosphaeria typhicola, 114 Mycosphaerella Typhae, 96  Vaccinium oorymbosum L . Melanomma pulvis-pyrius, 63 Vaccinium Qxycoccos L . Acanthorhynchus  v a c c i n i i , 53  V i c i a faba L . Melanospora p a p i l l a t e , 41 V i o l a adunca Smith Pleospora asymmetrica,  127  Viola tricolor L. Sphaerotheca humuli, 85 V i o l a sp. Sphaerotheca humuli, 25 V i t i s sp.  (Grape)  Guignardia B i d w e l l i i , 75 Uncinula necator, 28 Yucca sp. Phomatospora ?argyrostigma, 121 Zea Maya L . Mycosphaerella Tassiana, 89 Zinnia elegans Jacq.. Erysiphe cichoracearum, 19 Zygadenus elegans (Pursh.) Rydb. Mycoaphaerella Tassiana, 89  224.  SUMMARY  The foregoing l i s t shows a t o t a l o f 263 species i n 95 genera©  Those  species which have not been determined and which are awaiting complete i d e n t i f i c a t i o n comprise 41.  In the table given below the number o f genera,  species, and indeterminate species are tabulated by family and order..  TABLE I  . Family  Genera  Species  Erysiphaceae  6  19  Perisporiaceae  4  5  Microthyriaceae  5  7  2  Neetriaceae  6  12  2  Hypocreaceae  4  6  m  6  6  1  Chaetomiaceae  1  22  *•  Sordariaceae  4  6  *!•  T r i eho sphaer iace ae  5  5  1  Melanommeae  4  8  Ceratostomataceae  1  Indet. species  PERISPORLALES:  HYPOCREALES:  DOTHIEEALES: Dothideaceae SPBAERLALES:  -  1  225© TABLE I cont.  if  i Family  .-J  Genera  Species  Indet.species  Cucurbitariaceas  2  1  1  Coryneliaceae  1  1  «*  Ampbisphaeriaceae  2  '.i.4  Lophiostomataceae  2  4  •e  51  6  13  77  23  Massariaceae  2  2  1  Gnomoniaceae  3  8  -  Clypeosphaeriaceae  1  1  1  Valsaceae  7  15  1  Melanconidaceae  1  2  Diatrypaceae  3  7  ***  Melogrammataceae  1  1  **  Xylariaceae  3  13  1  95  263  41  5FHAER1ALES cont.  Mycosphaerellaceae Pleosporaceae  y  TOTAL  Comparison of t h i s l i s t of Pyrenomycetes with those of Manitoba and Saskatchewan (Bisby, et a l . 1938) and those o f the Maritime (Wehmeyer, 1950) i s also given. three regions  9  Provincea  The number o f species reported for the  and the number of species common to each of the other two  regions and to B r i t i s h Columbia are given f o r the four orders of  226o  Pyrenomycetes»  A l l v a r i e t i e s are counted as species i n each case.  TABLE I I  Order  B r i t i s h Columbia species  Manitoba species common  Maritimes species common  PERISPORIALES  31  18  14  28  19  ETPOCHEALES  18  32  8  42  9  DOTHIDEALES  6  9  2  10  3  SPHAERIALES  208  276  39  166  46  TOTAL  263  335  63  246  77  The l a r g e r number of species from Manitoba i s probably the r e s u l t of more intensive study f o r a longer period*  Of the three families best  represented i n B r i t i s h Columbia, comparison with those o f Manitoba and the Maritimes shows the following:  TABLE I I I  Family  B r i t i s h Columbia species  Manitoba species common  Maritimes species common  Erysiphaceae  19  16  13  23  18  Mycosphaerellace ae  51  9  4  18  9  Pleosporaceae  77  56  12  35  12  227. The l a r g e r number o f B r i t i s h Columbia species i n two of these f a m i l i e s indicates that further study i n a l l groups would show a s i m i l a r l y large number o f species i n the other f a m i l i e s .  Further study would also  provide more fungi common to t h i s province and the other two regions. The s i m i l a r i t y between European and Western North American fungi has been noted previously by c o l l e c t o r s i n the west. 116) says:  n  As Kaufftnan (1925:  .«.many species, i f one i s at a l l familiar with northern  European plants, are found to be o l d F r i e s i a n s p e c i e s . * a . . " .  A number  of species i n t h i s l i s t have not previously been noted from North America.  These species are marked i n the l i s t by an a s t e r i s k .  As l a s been previously stated, t h i s l i s t i s f a r from complete. size o f the province prevented it.  The  c o l l e c t i n g throughout the larger part of  Even i n the areas more i n t e n s i v e l y studied, many more species w i l l  doubtless be found©  228.  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Child, Marion.  Some new species o f Ascamycetes  Mycol. 32: 728-735. 1940©  The genus Daldinia.  Ann. Mo.Bot.Gard. 19: 429-496. 1932©  10. Chivers, A.H. A monograph of the genera Chaetomium and Ascotricha. Bot. Club Mem.  Torrey  14 (3): 155-240. 1915.  11. Clements, Frederic E. and Shear, Cornelius L .  The genera of f u n g i .  New  York, H.W.Wilson Company, 1931 12. Conners, I.L.  Annual report o f the Canadian Plant Disease Survey. (9th  and 11th to 21st reports©) 13.  and Eardley, E.A.  Can.Dept.Agr.,  Ottawa, 1929,  1931-1941©  Annual report of the Canadian Plant  Disease Survey (10th r e p o r t ) . Can.Dept.Agr.,  Ottawa, 1930.  229. 14. Conners, I.L. and S a v i l e , D.B.O. Annual report o f the Canadian Plant Disease Survey (22nd to 29th reports).  Can.Dept.  Agr,., Ottawa, 1942-1949. 15. Cooke, Wm.Bridge.  Western fungi - I . Mycol. 41: 601-622. 1949.  16. Davidson, John, e t . a l . to the Americas. pp. 150-168. 17. Dearness, John.  B r i t i s h Columbia.  In N a t u r a l i s t ' s Guide  Baltimore, Williams & Wilkins Company,  1926.  New or noteworthy species i f fungi.  Mycol. 8: 98-  107. 1916. 18.  •  New or noteworthy North American fungi.  Mycol. 9: ,  345-364. 19171 19. Drayton, F.L.  A summary.of the prevalence of plant diseases i n the  Dominion of Canada 1920-1924.  Can.Dept.Agr. B u l l . 71. n.s.  Ottawa, 1926. 20. E l l i s , J.B. and Everhart, B.M. localities. .21.  '  New  species of fungi from various  Journ.Mycol. 3: 116-118,  .  - •  New North American fungi.  Acad.Nat.Sci.Phila. 1890: 219-249. 22.  •_  25. F i t z p a t r i c k ,  New species of fungi from various  B u l l . Torr. Bot.Club 25: 501-514.  24. F a u l l , J.H. and. Graham, G.H. Columbia.  Pyrenomycetes,.  1892.  . localities.  Proc.  1891,  The North American  Newfield, N.J. 23.  188B.  Bark disease of the chestnut i n B r i t i s h  Forestry Quarterley 12: 201-203.  Harry Morton.  1898.  1914.  Revisionary studies i n the Coryneliaeeae.  I I . The genus C a l i c i o p s i s .  Mycol. 34: 489-514.  1942.  230. 26«.Griffiths, David.  Contributions to a batter knowledge of the Pyreno-  mycetes. - I: A study of miscellaneous  species. B u l l . Torr.  Bot.club. 26: 432-444. 1899. 27. G__  The North American Sordariaceae. Club Mem.  11: 1-34.  28. Groye3i*„J.Walton.  A new  Torrey  Bot.  1901. species of Claviceps on Carex.  Mycol. 35:  694-609. 1943. 29. Kauffman, C.H.  The  fungus f l o r a o f Mt. Hood, with some new  species.  Mich. Acad, S c i , (Papers) 5: 115-148. 1925. 30. Lind, J .  Micromycetes from north-western Greenland found on plants  c o l l e c t e d during the Jubilee Expedition, 1920-23.  Meddel, cm  Groenl. 69: 161-179. 1926. 31.  The Micromycetes of Svalbard. S k r i f t e r om Svalbard Ishavet. 13.  32. Lindau, G.  1928.  Pyrenomycetineae,  Pflanzenfamilien. 33. Mains, E.B.  New  og  In Engler and Prantl's Die naturlichen  L e i p z i g , Wilhelm Engslmann, 1897.  and i n t e r e s t i n g species of Cordyceps.  pp. 321-491.  Mycol. 39:  535-545. 1947. 34. Martin, G.Hamilton and Charles, Vera K.  Preliminary studies of the  l i f e h i s t o r y of Erostrotheca multiformis, the perfect stage of Cladosporium album Dowson. 35. McCurry, J.B.  Phytopath. 18: 839-846. 1928.  Report on the prevalence  of plant diseases i n the  Dominion of Canada f o r the years 1927 Ottawa, 36.  and 1928.  Can.Dept.Agr..  1928. and Hicks, A.J.  F i f t h annual report on the  prevalence  of plant diseases i n the Bominion of Canada. Can.Dept.Agr Ottawa,  1925,  0  231. 37. Migula, W.  Kryptogaman-Flora,  In Dr. Thome's. F l o r a von Deutschland,  Osterreich und der Schweiz.  Gera, F r i e d r i c h von Zezschwitz,  7ol.HI,. Part 3, Divisions .1 and 2. 1913. 38. M i l l e r , J u l i a n H.  Biologic studies i n the Sphaeriales - I I . Mycol.  20: 305-^339. 1928. t_ Same new species of Hypoaylon. Mycol. 25 : 321-329. 1933.  39. 40..  •  41.  Georgia Pyrenomycetes. I I . Mycol. 33: 74-81. 1941. . . •  42. Orton, C.R.  L e t t e r to the writer, June 12, 1952.  Graminicolous species of Phyllachora i n North America.  • Mycol. 36: 18-54. 1944. 43. Peck, Morton Eaton.  A manual of the higher plants o f Oregon. Portland,  Oregon, Metropolitan Press. 1941. 44, Saccardo, P.A.  Sylloge Fungorum. I . Pyrenomyceti. 1882. Pata 711, I I .  Pyrenomyceti. 1883. Pata 711. .711.  Additamenta ad I - 17. 1886. Pata  IX. Supplementum Universale I . 1891. Pata 711.  mentum Universale I I I . 1895. Pata 711. 17. 1899. Pata 711.  XI7. Supplementum Universale  XVI. Supplementum Universale 7. 1902. Pata 711.  XVII. Supplementum Universale. VI. 1905. Pata 711. mentum Universale IX. 1913, Pata 711, sale. X. Sectio I . 1926, A b e l l i n i . 45, Salmon Ernest S.  XT. Supple-  XXII. Supple-  XXI7, Supplementum Univer-  Sectio • I I . 1928. A b e l l i n i .  A monograph of the Erysiphaceae. Torrey. Bot. Club  Mem. 9: 1-292.  1900.  46, Seaver, Fred J . Hypocreales. North Am. Flora, 3(1): 1-56. 1910, 47, Seymour, Arthur B l i s s .  Host index of the fungi o f North America.  Cambridge, Harvard University Press. 1929, 48. Shear, Cornelius L o t t , New species of fungi. B u l l . Torrey Bot.Club 34: 305-317. 1907.  232. 49. Stace-Smith, Richard. A study of the black knot disease of plums. Thesis i n the Department of Agriculture, Univ. B r i t i s h Columbia, unpublished. 50. Stevens, N e i l E.  1950.  Two apple black r o t fungi i n the United States. Mycol.  25: 536-548. 1933. 51. Waterman, Alma M. Tip blight of species of Abies^eaused by a new species of Rehmiellopsis.  Journ. Agr.Res..70:  52. Welch, Donald Stuart. A monographic  315-338. 1945.  study of the genaa Cucurbitaria  i n North America. Mycol. 18: 51-86. 1926. 53. Wehmeyer, Lewis E.  A b i o l o g i c and phylogenetic study of the stromatic  Sphaeriales. Am. Journ. Bot. 13: 575-645. 1926. 54.  -  The genus Diaporthe Nitschke and i t s segregates.  Univ. Mich. Studies. Scien. Series. 55.  9: 1-349. 1933.  Studies on some fungi from Northwestern Wyoming. I. Pyrenomycetes. Mycol. 38: 144-170. 1946. Leptosphaeria.  56.  I I I . Pleospora and  L l o y d i a (9: 203-240. 1946. e  Studies i n the genus Pleospora. I. Mycol. 41: 565593. 1949.  I I I . Mycol. 43: 34-53. 1951.  17. Mycol. 43: 570-  589. 1951. 57.  The fungi o f New Brunswick, Nova Scotia and Prince Edward Island.  58.  Ottawa, National Research Council. 1950.  L e t t e r to the w r i t e r , May 19, 1952.  59. Winter, Georg.  Ascomyceten:  Gymnoasceen and Pyrenomyceten  In Die  P i l z e . Rabenh. Krypt.-Flora Deutsch. Oestwrro Schweiz. 1(2): 1-928. L e i p z i g , Eduard Kummer. 60. Wolf, Frederick A. of clover.  1887.  Morphology of Peiythrincium, causing sooty blotch Mycol. 27: 58-73. 1935.  233© INDEX OP GENERA AND SPECIES  Acanthonitschkea Speg. coloradensis Cash & Davidson Acanthorhynchus Shear  65 65 53  v a c c i n i i Shear  53  Acrospermum Tode ex Fr,,  37  compressum Tode  37  Apioporthe Hohn©  153  vepris (De Lacr.) Wehme Apiosporella Hohn,  102  alpina Wehm. Apiosporina.Hohn Collinsii  154  102 57  0  (Schw ) Hohn. 9  Ascospora F r , -  57 73  graminis L i n d  74  Ruborum (Oud,) S e l l e r  74  A s t e r e l l a Sacc*  32  Gaultheriae (Curt.) Sacc,  32  THellebori Rehm  33  Asterina Lev, rubicola Ell© & Ev„  33 33  A s t e r u l a Sacc©  33  sp©  33  B e r t i a de Not©  61  moriformis (Tode) de Not,  61  234. Bombardia Fr«  53  ambigua Tar. carbonaria Rehm C a l i c i o p s i s Pk.  54 67  Pseudotsugae F i t z p .  67  Calosphaeria T u l .  164  princeps T u l .  165  Capronia Sacc.  102  pleiospora (Mout.) Sacc.  103  Catharinia, see Pleospora Ceratostomella Sacc.  64  sp.  65  Chaetomium Kunze  51  cochliodes P a l l .  52  ?spirale Zopf.  52  Clathrospora. see Pleospora ClaTiceps T u l .  44  Grohii GroTes  44  purpurea Tul..  45  Coleroa (Fr.) Rab.  58  Chaetomium (Kunze) Rab.  58  Oxyriae Rostr.  58  Coniochaeta Sacc. leucoplaca (Berk. & RaT.) Cordyceps (Fr.) Link myrmecophila Ces. Creoneetria SeaTer coccinea (Pers.) SeaTer  61 Cain  61 45 46 38 38  235, Creonectria conte Cucurbitula(Sacc) Seaver  39  mammoidea ( P h i l , & Plow,) Seaver  39  pithoides ( E l l , & Ev.) Seaver  39  purpurea  40  (L.) Seaver  sp,  40  Cryptodiaporthe Petrak Macounii  154  (Dear,) Wehm,  154  s a l i c i n a (Curr,) Wehm.  155  Cryptosphaeria Nitschke populina (Pers,) Sacc, Cueurbidothis Petrak p i t h y o p h i l a (Fr,) Petrak Cymadothea Wolf T r i f o l i i (Pers.) Wolf Daldinia Ces, & de Not,  155 155 48 48 49 49 160  concentrica (Bolt,) Ces, & de Not,  169  occidentale Child  169  Diaporthe Nitschke  156  A r c t i i (Lasch,) N i t ,  156  eolumbiensis E l l , & Ev»  157  eres N i t ,  157  pardolata (Mont,) F c k l ,  158  Diatrype F r ,  165  b u l l a t a (Hoffm.) Fr.  165  disciformis (Hoffm.) Fr.  166  Diatrype cont© Macounii ELI. & Ev.  166  stigma (Hoffm©) de Not©  166  D i a t r y p e l l a Ces. & de Not*.  167  betulina Pk.  167  Tocciaeana de Not©  167  Dibotryon Theiss. & Syd.  49  morbosum (Schw©) Theiss© & Syd©  49  Didymella Sacc.  1G3  applanata (Niessl) Sacc. D e l p h i n i i Earle  103 104  t  fenestrans (Duby) Wint.  104  Rauii  104  ( E l l . & Ev.) Sacc©  Trifolii  (Fckl.) Sacc.  105  . Didyraellina Hohn.  105  macrospora ELebahn  105  Didymosphaeria Fckl©  105  ?Borgii Carnana-Gatto & Sacc©  106  oregonensis Goodding  106  Dimeriuijt Sacc. & Syd.  29  alpinum W.B.Cooke  29  Dimerosporium F c k l .  29  A b i e t i s Dear©  30  Tsugae Dear.  30  Endodothella Theiss. & Syd© Tracyi ( E l l . & Ev.) Theiss. & Syd© Endothia F r . p a r a s i t i c a (Murr.) A. & A.  -  50 50 168 168  Epichloe (Fr.) T u l . typhina (Pers.) T u l . Erostrotheca Martin & Charles multiformis Martin & Charles Erysiphe Hedw.f. aggregata  46 37 37 18  (Pk.) F a r l .  cichoracearum  46  DC/  19 19  graminis DC.  20  polygoni DC.  20  E u t y p e l l a Nitschke s t e l l u l a t a (Fr.) Sacc. Fene s t e l l a Tulo princeps T u l . Glomerella Schrenk & Spauld. cingulata (Ston.) Schrenk & Spauld. Gnomonia Ces. & de Not.  159 159 159 159 147 147 147  Caryae Fr.A.Wolf  148  depressula Karst.  148  p o t e n t i l l a e sp.nov.  149  setacea (Pers.).Ces. & de Not.  149  veneta  150  (Sacc. & Speg.) KLebahn  Vepris $but. . Gnomoniella Sacc. • C o r y l i (Batsch ex Fr.) Sacc. Guignardia V i a l a & Ravaz  150 150 151 74  B i d w e l l i i (ELI.) V i a l a & Ravaz  75  circumtegens Rostr.  75  Guignardia conta graminicola Rostra  75  P o t e n t i l l a e (Ro3tr.) Lindau  75  ? Y a c c i n i i Shear  76  Herpotrichia Fckla  58  nigra Hartig  58  H e r p o t r i c h i e l l a Petrak  59  sp.  -  59  Hypocopra F r .  54  gigaspora ( E l l . & Ev.) G r i f f i t h s  64  Hypomyces (Fr.) 22ul.  46  aurantius (Pers.) T u l .  47  Lactifluorum (Schw.) T u l .  47  Hypoxylon F r .  170  aspera Mass. atropurpureum  170 Fr.  172  Cine re o-l i l a c inum M i l l e r  172  eoncurrens B. & C.  173  Crustaceum Nit»  173  fuscum (Pers.) F r .  171  multiforme F r .  171  perforatum (Schw.) Sacc.  '  173  rubiginosum F r .  173  ?pruinatum  173  (KLotsche) Cke.  serpens Pers. ex Fr. var. macrosporum M i l l .  172  ustulatum (Bull.) F r .  172  vogesiacum Pers. ex Saev©  172  239. Laestadia, see Guignardia Leptosphaeria Ces. & de Not©  106  agnita (Desm.) Ces. & de Not.  108  Andromedae (Awd.) Sacc.  108  ?Apogon Sacc. & Speg.  109  C a l i f o r n i e a (Cke. & Hark.) Sacc.  109  Camellias Cooke & Mass.  109  coniothyrium (Fckl.) Sacc.  109  consobrina Karst.  110  culmicola (Fr.) Awd.  110  culmifraga (Fr.) Ces. & de Not.  110  culmorum Awd.  Ill  dumetorum N i e s s l  112  epicarecta (Cke.) Sacc.  112  eustoma (Fr.) Sacc.  112  Gaultheriae Dear.  112  T L o l i i Syd.  '  113  petkovicensis Bubak & Ranojevic  113  pratensis Sacc. & Br.  113  Silenes-aeaulis  114  de Not.  tenera E l l i s  114  Typhae Karst.  114  typhicola Karst.  114  sp. Leptosphaerulina McAlpine sp.  114-116 76 76  Linospora F c k l . ? i n s u l a r i s Johans, sp, Lophiostoma Fr, appendiculatum F c k l , caulium (Fr.) de Not, Lophiotrema Sacc. aequivocum E l l , & Ev, . ?nucula (Fr.) Sacc, Mam&ania, see Gnomoniella Massaria de Not, macrotheca (Rostr.) L i n d Massarina Sacc. Dryadis Rostr. sp. Melanconis T u l , alni Tul. thelebola (Fr.) Sacc, Melanomma F c k l , cinereum (Karst.) Sacc, parasiticum E l l . & Ev. pulvis-pyrius (Pers,) F c k l . Melanospora Corda p a p i l l a t a Hot son Townei G r i f f i t h s  241, Metasphaeria Sacc.  117  Macounii Dear.  117  Poae (Niessl) Sacc.  117  ?Zobeliana S t a r i t z  118  Microsphaera Lev.  21  a l n i (Wallr.) Salm.  22  a l n i var. lonicerae (DC.) Salm.  22  a l n i var. v a c c i n i i (Schw.) Salm.  22  d i f f u s a Cke. & Pk*  22  Mfcrothyrium Desm.  34  arcticum Oudem.  34  Juniperi (Desm.) Sacc.  35  Tmicroscopicum Desm.  35  Mycosphaerella Johans.  76  a r b u t i c o l a (Pk.) House  80  ?Auerswaldii (Fleischh.)Migula  80  b r a s s i c i c o l a (Duby) Lindau  80  ca::l c a r i c i c o l a (2?ckl.) Lindau  81  Chimaphilae E l l . & Ev.  81  cinerascens (Fckl.) Migula  81  coerulea ( E l l . & Ev.) Tracy & Earle  81  c o n f i n i s (Karst.) L i n d  82  dolichospora (Sacc. & Fautre) Wehm.  82  e a r l i a n a Wint.  82  e r i o p h i l a (Niessl) Dear.  83  Fragariae (Tul.) Lindau  83  graminicola (Fckl.) Schroet.  83  242. Mycosphaerella cont. Grossulariae (Fr.) Lindau  83  i n d i s t i n c t a (Pk.) Lindau  84  innumerella Karst.  84  l i n e o l a t a (Rob.& Deam.) Schroet.  84  melaena (Fr.) Sacc.  84  m i c r o s p i l a (B. & Br.) Cke.  85  minor (Karst.) Lindau  85  o r b i c u l a r i s (Pk.) House  85  Pachystimae  85  Dear.  perexigua (Karst.) JTohans.  86  pinodes (B. & Blox.) R.E.Stone  86  Polygonorum (Crie) L i n d  86  populifolia  86  (Cke.) House  punctiformis (Pers.) Schroet.  87  p u n c t i f o m i s var. Clematidis Jaap  87  p u s i l l a Awd.  87  Ranunculi (Karst.) L i n d  88  r o s i c o l a (Pass.) Davis  88,  rubi Roark  88  sagedioides (ffint.) Lindau  88  stromatoidea Dear.  89  Tassiana (de Not.) Cohans.  89  Typhae (Lasch.) Lindau  96  vagans E l l . & Ev.  96  Wiehuriana (Schroet.) Johans.  96  sp.  97  243. Nectria Fr.  41  episphaeria (Tode) F r .  42  galligena Bres*  42  sanguine a, F r .  42  Nectriella Fckl.  43  sp.  43  Ophiobolus Riess.  118  acuminatus (Sow.) Duby c a r i c e t i (Berk. & Br.) Sacc. minor Bubak porphyrogonus  118 119 119  (Tode) Sacc.  119  Rostrupii Ferdin. & Winge  120  rudis (Riess.) Rehm  120  Otthia Nitschke sp. P e t r i e l l a Curzi  66 66 30  asymmetrica Curzi  30  Phaeoeryptopus Naumoff  31  gaumannii (Rohde) Petrak Phaeosphaerella Karst. maculosa (Sacc.) Karst. Phomatospora Sacc.  31 98 98 120  ?argyrostigma (Berk.) Sacc.  121  therophila (Desm.) Sacc.  121  Phyllachora Nitschke  50  graminis (Pers.) F c k l .  50  s i l v a t i c a Sacc. & Speg.  50  244a P h y l l a c t i n i a Lev.  22  corylea (Pers.) Karst. Physalospora N i e s s l  25 121  Miyabeana Fukushi  121  sp.  122  obtusa (Schw.) Cke.  122  Pleosphaeruliaa Pass.  98  c o n s t r i c t a (Starb.) Sacc. Pleospora Rab.  98 122  c  ambigua (Berl. & Bres.) Webm. var. C r a n d a l l i i ( E l l . & Bv.) Wehm. angustata Wehm.  126 126  :  a r c t i e a Karst.  126  asymmetrica Wehm.  127  B§ccata E l l .  127  Balsamorrhizae Tracy & Earle  128  coloradensis E l l . & Ev.  128  comata N i e s s l .  129  Compositarum Earle  150  diplospora E l l . & Sv.  130  discors (Mont.) Ces. &'de Not.  151  Elynae (Rab.') Ces. & de Not.  131  helvetica Niessl  131  herbarum (Pers.) Rab. '  132  herbarum f a r . occidentalis Wehm.  133  infectoria Fckl.  135  macrospora Schroet.  '  155  245.  Pleospora cont. njegusensis Bub.  134  oligasca Bub.  134  pentamera Karst.  135  permunda (Cke.) Sacc.  136  planispora E l l .  136  Tragacanthae Rab.  136  trichostoma (Fr.) Ces. & de Not.  137  vulgaris N i e s s l .  138  sp.  ,  138-140  Plowrightia, see Dibotryon Podosphaera Kunze  23  leucotricha  ( E l l * & Ev.) Salm.  24  oxyaeanthae  (DC.) de Bary  24  Protoventuria B e r l * & Sacc.  140  vancouverensis Dear.  140  sp.  140  Pseudoplea Hohn. Trifolii  (Rostr.) Petrak  99 99  Pyrenophora, see Pleospora Rehmiellopsis Bubak & Kabat a b i e t i s (E.Rostr.) 0.Rostr* R o s e l l i n i a Ces. & Sie Not.  99 99 63  obliquata (Somm.) Sacc. var. Americana E.& E . 63 o v a l i s ( E l l . ) Sacc.  64  thelena (Fr.) Rab. var. pinea Sacc.  64  246.  Sordaria Ces. & de Not.  55  f l m i c o l a (Rob.) Ces. & de Not.  55  hypocoproides Spegg  56  setosa Wint.  56  Spermoedia,  see Claviceps  Sphaerella, see Mycosphaerella Sphaerotheca Lev.  24  hjnauli (DC.) Burr.  25  humuli var. f u l i g i n e a (Schlecht.) Salm.  26  mors-uvae (Schw.) Berk. & Curt.  26  pannosa (Wallr.) Lev.  26  Sphaerulina Sacc.  99  A l n i A.Lorr.Smith forma minor fm. no v.  100  Gentianae Wehm.  100  , Stigmatea F r ,  35  Robertiani F r . S t r i c k e r i a Korber Amelanchieris  35 68  Earle  68  obducens (Fr.) Wint.  89  Typhina.Ell. & Ev.  69  Teichospora,  see S t r i c k e r i a  Trematosphaeria* F c k l . ? f i s s a (Fckl.) Wint.  70 70  Trichosphaeria F c k l .  60  breviseta Dear.  60  Typhodium, see Epichloe  247 6 Uncinula Lev.  27  aceris (DC.) Sacc.  27  circinatum Cke. & Pk.  27  necator (Schw.) Burr*  28  s a l i c i s (DC.) Wint.  28  Ustulina, see Hypoxylon Yalsa F r .  160  atoMens (Pers.) F r .  161  ceratophora T u l .  161  leucostoma (Pers.) F r .  161  nivea (Hoffm.) F r .  161  P i n i (Alb. & Schw.) F r .  162  sp.  162  Venturia Ces. & de Not.  141  atriseda Rehm  142  7Cassandrae Pk.  142  chlorospora (Ces.) Karst.  142  D i c k i e i (B. & Br.) de Not.  142  inaequalis (Cke.) Aderh.  143  m y r t i l l i Cke.  143  p y r i n a Aderh.  ' 143  Rumicis (Desm.) Wint.  144  sp.  144  X y l a r i a H i l l , ex Grev. Hypoxylon (L.) Grev.  173 173  PLATES AND EXPLANATION  PLATE I Representative asci or spores of each species were drawn by camera l u c i d a , to scale, as indicated, i n order to i l l u s t r a t e the descriptions.  F i g . l . Ascus of Erysiphe aggregata (Pk.) E a r l . E . cichoracearum DC.  Fig.3. Immature ascus o f E . graminis DC.  Fig.4. Ascus of E . polygoni DC. Microsphaera a l n i (Wallr.) Salm.  Fig.5. Appendage and ascus of Fig.6. Appendage and ascus of  M. a l n i v a r . lonicerae (DC.)Salm.  Fig.7. Appendage and ascus  of M. a l n i var. SBaccinii (Schw.) Salm. d i f f u s a Cke. & Pk. Karst. Salm.  Fig.2. Ascus of  Fig.8. Ascus of M.  Fig.9. Ascus of P h y l l a c t i n i a cbrylea (Pers.)  Fig.10. Ascus o f Podosphaera leucotrieha (EM;. & Ev.) F i g . l l . Ascus of P. oxyacanthae (DC.) de Bary.  Fig.12.  Ascus of Sphaerotheca humuli (DC.) Burr.  Fig.13. Ascus o f S.  humuli var. f u l i g i n e a (Schlecht.) Salm.  Fig.14. Appendage and  ascus of Unelfiula A c e r i s (DC.) Sacc. necator (Schw.) Burr.  Fig.15. Ascus of U.  Fig.16. Ascus o f U» s a l i c i s (DC.) Wint.  Fig.17. Ascus and spore o f Dimerium alpinum W.B.Cooke© 18. Ascus and spore of Dimerosporium A b i e t i s Dear. Ascus and spore o f P. Tsugae Dear. of Pe t r i e 11 a asymmetrica  fflurzi.  Fig.21. Ascus and spore o f Fig.22© Ascus and  spore of A s t e r e l l a Gaultherias (Curt.) Sacc.  r u b i c o l a E l l . & Ev©  Fig.19©  Fig.20. Ascus and spores  Phaeocryptopus gaumannii (Rohde) Petrak©  of A. ?Hellebori Rebm.  Fig.  Fig.23© Spores  Fig.24. Ascus and spores of Asterina  Fig.25© Ascus and spores of Mierothyrium  PLATE I cont. arc t i cum Qadenu Sacc.  Fig.27  B  Fig.26. Ascus and spore of M. Juniperi (Desm.)  Ascus and spores of Stigmatea Robertiani F r .  Fig.28. Spores of Creonectria coccinea (Pers.) Seav. Spores of C. cucurbitula (Sacc.) Seav. C.pithoides (E11.& Ev.) Seav. (L.) Seav.  Fig.30. Ascus of  Fig.31. Ascus of C. purpurea  Fig.32. Ascus and spore o f Creonectria sp.  Ascus and spores o f Melanospora p a p i l l a t e Hotson. of M. Townei G r i f f i t h s . (Tode) F r .  (Pers.) T u l .  Fig.34. Spore  Fig.37. Ascus  Fig.38. Ascus and spores of N e c t r i e l l a sp.  Fig.39. Ascus of Claviceps Grohii Groves. C. purpurea T u l .  Fig.33.  Fig.55. Ascu3 of N e c t r i a episphaeria  Fig.36. Spores of No galligena Bres.  of No sanguinea F r ,  Fig.29.  Fig.40. Spores of  Fig.41. Ascus and spore of Hypomyces aurantius  Fig.42. Spore of Ho Lactifluorum (Schw.) SSul.  PLATE  I  PLATS I I  F i g . l . Ascus and spores of Cucurbidothis pithyophila (Fr.) Petrak. Fig«2. Ascus and spore o f Dibotryon morbosum (Scbw.) Tbeiss. & Syd.  Fig.3. Ascus and spores of Pbyllachora graminis (Pers.) F c k l .  Fig.4. Ascus and spore o f P. s i l v a t i c a Sacc. & Speg. and spores o f Dothideaceae  cocbliode3 P a l l .  indet.  Fig.5« Ascus  Fig«6. Spores of Chaetcmimn  Flg.7. Spores of C. ?spirale Zopf.  of Aoanthorhyncbus v a c c i n i i Shear.  Fig.9. Immature and mature  spores o f Bombardia ambigua var. carbonaria Rehm. of Sordaria f l m i c o l a (Rob.) Ces.& de Not. hypocoproides Speg.  Fig.8. Ascus  Fig.10. Ascus  F i g . l l . Spores o f S.  Fig.12. Spores of S. setosa Wint.  Fig.13.  Ascus and spore o f Apiosporina C o l l i n s i i (Schw.) Hohn.  Fig.14.  Ascus and spores o f Coleroa Chaetomium (Kunze) Rab. Fig.15. Ascus and spore o f C. Oxyriae Rosts. t r i e h i a nigra Hartig. sp.  Fig.l6o Ascus and spore of Herpo-  Fig,17. Ascus and spores of H e r p o t r i c h i e l l a  Fig.18. Ascus o f Trichosphaeria ?breviseta Dear.  Ascus and spore o f B e r t i a moriformia (Tode) de Not. of Coniochaeta leucoplaca (Berk. & Rav.) Melanomma cinereum (Karst.) Sacc. M. parasitieum £11. & Ev. pyrius (Fers.) F c k l .  Cain.  Fig.20. Ascus  Fig.21. Spores o f  Fig,22. Ascus and spore o f  Fig.23. Ascus and spore of M» p u l v i s -  Fig©24. Ascus and spores of R o s e l l i n i a  obliquata (Somm.) Sacc. var. Americana E l l . & Ev. and spore of R. o v a l i s ( E l l . ) Sacc. stomella sp.  Fig.19.  Flg.25. Ascus  Fig.26. Spores of Cerato-  Fig.27. Ascus of Acanthonitschkea coloradensis Cash  PLATE II cont. & Davidson.  F i g . 28. Ascus and spore of Otthia sp.  Ascus and spores o f C a l i c i o p s i s pseudotsugae Spores of S t r i e k e r i a Amelanchieris E a r l e . S. obducen3 (Fr.) Wint.  Fitzp.  Fig.29. Fig.30.  Fig.31. Ascus of  Fig.32. Spore of S. Typhina (EL1.& Ev.)  Fig.33. Spores o f Trematosphaeria ? f i s s a (Fckl.) Mint* Ascus and spore o f Lophiostoma appendiculatum F c k l . Spores o f L . eaulium (Fr.) de Wot. Lophiotrema aequivocum E l l . & Ev. L . ?nucula (Fr.) Sacc.  Fig.34.  F i g . 35.  Fig»36. Ascus and spore of Fig.37. Ascus and spore o f  PLATE II  PLATE III  F i g . l . Ascus and spore of Ascospora graminis J.Lind. Fig.2. Ascus and spores of ?Laestadia circumtegens Rostr. and spore of L. graminicola Rostr.  Fig.4. Ascus and spores of  Guignardia P o t e n t i l l a e (Rostr.) Lindau. of G. ?Vaeoinii Shear. u l i n a sp.  Fig.3. Ascus  Fig.5. Ascus and spore  . Fig.6. Ascus and spores of Leptosphaer-  Fig.7. Ascus of Mycosphaerella arbuticola (Pk.) House.  Fig»8. Asuus and spore of M. ?Auerswaldil (Fleischh.) Mig. Ascus and spore of M. b r a s s i c i c o l a (Duby) Lindau. and spore of M. o a r i c i c o l a (Fckl.) Lindau. of M. Chimaphilae E11.&  Ev.  cinerascens (Fckl.) Mig.  Fig.10. Ascus  F i g . l l . Ascus and spore  Fig»12. Ascus and spores of M.  Fig.13. Ascus and spore of M. coerulea  (E11.& Ev.) Tracy & Earle© (Karst.) L i n d .  Fig.9.  Fig.14.  Ascus and spore of Me  confinis  Fig.15. Ascus and spore of M. dolichospora (Sacc.  & Fautre) Wehm. Fig.16. Ascus and spores of M. earliana Wint. Fig.17. Ascus and spore o f M. e r i o p h i l a (Niessl) Dear. Ascus and spores of M. Fragariae (Tul.) Lindau. spore of M. graminicola (Fckl.) Schroet© of M. i n d i s t i n c t a (Pk.) Lindau. M. innumerella Karst. (Rob. & Desm.) Schroet. (Fr.) Sacc. Cke.  Fig.18.  Fig.19. Ascus and  Fig.20. Ascus and spore  Fig.21. Ascus and spores of  Fig.28. Ascus and spore of M. l i n e o l a t a Fig.23. Ascus and spores of M»melaena  Fig.24. Ascus and spores of M. microspila (B.&  Fig.25© Ascus and spores of M. minor (Karst.) Lindau©  26. Ascus and spores of M. o r b i c u l a r i s (Pk.) House.  Br.) Fig©  Fig.27© Ascus  PLATE III cont and spore 8 of Ma Pachystimae Dear a M. perexigua (Karst*) Johans. Polygonorum (Crie) L i n d . f o l i a (Cke.) House.  Fig.28 Ascus and spore of 0  f i g . 2 9 . Ascus and spore of M.  Fig.30. Asciis and spore of M. p o p u l i -  Fig.31. Ascus and spore of M. punctiformis  (Pers.) Schroet.  Fig.32. Ascus and spores of M. punctiformis v a r  Clematidis Jaapo  Fig.33. Ascus and spores o f Me p u a i l l a  F i g . 3&. Ascus and spores of M» Ranunculi (Karst) Linda Ascus and spores of M. sagediaflea (Wint.) L i n d a u and spore of M. stromatoidea Dear.  and spores of M. Typhae (Lasch.) Lindau.  F i g 3 6 . Ascus 0  Fig.39. Ascus  Fig.40. Ascus and spores  Fig.41. Ascus of Me Wichurlana  Johans., Fig.42. Ascus and spore of M. sp. on S a l i x . Ascus and spore of M.tsp. on Sambucus. M.ap.  on Sanicula.  on Thuja  a  (Schroet.) Fig.43.  Fig«44. Ascus and spore of  Fig.45. Ascus of M.sp.  Ascus and spore of M.sp.  Fig.35.  Fig.38. Ascus and spore  of M.Tassiana (de Note) Johans., high a l t i t u d e .  Ev.  Awd.  Fig.37. Ascus and spore of  M. Tassiana ( i a Not.) Johans., sea l e v e l .  of Ma vagans E11.&  0  a  on S i l e n e  e  Fig.46.  Fig.47. Ascus and spore o f  Phaeosphaerella maculosa (Sacc.) Karst.  Fig.48. Ascus and spores  of Pieosphaerulina c o n s t r i c t a (Btarb.) Sacc.  Fig.49e Ascus and  spore o f Pseudoplea T r i f o l i i (Rostr.) Petrako  Fig.50e Ascus and  spore of Sphaerulina A l n i A.Lorr.Smith fm» minor, fm.nov.  Fig.51e  Spore o f Se Gentianae Wehm. Fig.52. Ascus and spores o f Apiosporella alpina Wehm. Fig.53. Ascus and spores of Capronia pleiospora (Mout.) Sacce  Fig.54  e  Ascus and spore of Didymella applanata (Niessl) Sacc.  Fig.55. Ascus and spores o f D. Delphinii Earlea  ELATE I I I  PLATE I V F i g . l . Ascus and spore of Didymella fenestrans (Duby) Wint* F i g . 2. Ascus and spores o f Do Rauii ( E l l . & Ev.) Sacc.  Fig.3a Ascus  and spores o f D. T r i f o l i i (Fckl.) Sacc.  F i g . 4 . Ascus and spore  of Didymosphaeria oregonensis Goodding.  F i g . 5 . Ascus and spores  of P. ?Borgii Carnana-Gatto & Sacc,  F i g 6 . Ascus and spore o f 0  Leptosphaeria agnita (Desm©) Ces.& de Not. of L . Andromedae (Awd.) Sacc* Speg.  F i g 8 . Spores o f L. ?Apogon Sacc. & 0  Fig.9. Sporea of L . C a l i f o r n i e a (Cke.& Hark.) Sacc.  Spore of L . consobrina Karst. Awd.  Fig.?. Ascus and spore  Fig.10.  F i g e l l s Spores of L . culmicola (Fr.)  Fig.12. Spore of L . culmifraga (Fr.) Ces. & de Not.  Fig.13.  Spore of L . culmorum Awdo Figolft. Ascus and spore o f L . dumetorum Niessla  F i g . 15. Spores of L . epicarecta (Ckd.) Sacc.  Spores o f L* eustoma (Fr.) Sacc.  Fig.17. Spore of L . T L o l i i Syd.  Fig.18. Spore of L . petkovicensis Bub. & Ran. L. Silenes-acaulis de Not 21. Spores o f L. Typhae typhicola Karst.  8  Fig.23. Spore of L . sp. on Arenaria.  Dear©  Fig.24.  F i g . 25, Ascus o f L.sp. on Festuca. Fig.27. Spores o f  Fig.28. Spore of L.sp. on Oxytropis.  Spores o f L.sp. on Poa.  Fig.29©  Fig©30© Sporea of Metasphaeria Macounii  Fig©31. Ascus and spores of M. Poae (Niessl©) Sacc©  32© Spores of M. ?zobeliana S t a r i t z . acuminatus (Sow.) Duby.  Fig©  Fig.22. Spores of L .  Fig.26. Spores o f L.sp. on Ledum and Salix© L.spa on Ledum a  Fig.19. Spores o f  Fig.20. Spores o f L . tenera E l l .  (Auersw.) Karst.  Spore o f L. sp. on Arnica.  Fig.16.  Fig©  Fig.33. Ascus o f Ophiobolus  Fig.34© Ascus and spore of 0. Minor Bub.  PLATE IV cont  a  Fig.35. Ascus of Oa porphyrogonus (Tode) Sacc. Oa Rostrupii Fer.& VJinge. (Riess.) Rehme  Fig  s  36. Ascus o f  F i g . 37. Spore fragments of 0. rudis  Fig.38. Spores o f Phomatospora ?argyrostigma (B.)  F i g . 39. Ascus and spore of P.therophila (Desme) Sacc.  Sacc,  Fig.40e Ascus and spore of Physalospora Miyabeana Fukushi. 41. Ascus of Pa spa on Aplopappus a Festuca.  Fig.42. Ascus o f P. s p  Fig. a  on  Fig.43. Ascus and spore o f Pleospora ambigua (Berl. &  Bres.) Wehm. var. C r a n d a l l i i (E11.& Ev.) Wehm. Fig.44. Ascus and spore of P. angustata Wehm. Fig.45. Spores of P. a r c t i c a Karst. Fig.46. Spore of P. asymmetrica Wehm. Fig.47. Spores of P. baccata Ell.  Fig.48. Spore o f P. Balsamorrhizae Tracy & E a r l e .  Spore of P. coloradensis ELI. & Ev. Niessl.  Figa50a Spore of Pa comata  Fig.51. Spore of P. Compositarum E a r l e .  of P. diplospora ELI. & Ev.  Fig.49.  Fig.52. Spores  PLATE IV  PLATE V F i g . l . Ascus and spore of Pleospora diseors (Dur. & Mont.) Ces.fc de Not.  F i g . 2 . Spore of P. Elynae (Rab.) Ces. & de Not©  Fig.3.  Spore of P. h e l v e t i c a N i e s s l . F i g . 4 . Spore of^P. herbarum (pera.) Rab.  Fig.5o Spores of P. herbarum var. occidentalis Wehm. F i g .  6. Spore of P. i n f e c t o r i a F c k l . Schroet.  F i g . 7 . Spore o f P. macrospora  F i g . 8 . Spore of P. njegusensis Bub.  spore of P. oligasca Bub.  Ftg.10, Spores o f P. pentamera E l l . F i g . 1 2 . Spore o f  F i g . l l . Spores o f P. permunda (Cke.) Sacc. P. planispora ELI. 14.  Fig.13. Spores of P. Tragacanthae Rab.  Spores o f P. vulgaris N i e s s l .  sp.  15.  Fig.16. Spores o f P.sp. on Carex.  on Poa.  21.  flaillardia.  Agropyron and Trisetum.  Spores of P.sp.  Fig.19. Spores o f  Fig.22. Spores of P.sp. on  Fig.23© Ascus and spore of Protoventuria  Fig.24. Ascus and spore o f Venturis atriseda Rehm.  Ascus and spore of V. ?Cassandrae Pk. V. chlorospora (Ces.) Aderh. (B.& Br.) Ces. & de Not. Cke.  Fig.26. Ascus and spore o f  Fig.28. Ascus and spores of V. m y r t i l l i  Fig© 29© Ascus and spore o f V. pyrina Aderh.  V. sp. on Aplopappus. Astragalus©  Fig.25.  Fig.27. Ascus and spore of V. D i c k i e i  and spore of V. Rumicis (Desm.) Wint.  34.  Fig.17.  Fig.20. Spores of P.sp. on Oxytropis. F i g .  Spores o f P.sp. on Syringa.  sp.  Fig.  Spores of P^ (Catharinia)  Fig.18. Spore of P.sp. on A g r o s t i s .  P.sp. on  F i g . 9 . Ascus and  Fig.30. Ascus  Fig.31. Ascus and spore of  F i g . 32© Ascus and spore of V. sp. on  Fig,33© Ascus and spore of V. sp. on Fenstemon.  Ascus and spore of V.sp. on Phacelia©  Fig.  Fig©35. Ascus and spore  PLATE 7 cont  of Massaria macrotheca (Rostr.) L i n d . Dryadis Rostr.  F i g . 36. Spore o f Massarina  Fig.37. Ascus and spores o f Massarina sp.  Ascus and spore o f Gnomonia Caryae Fr«A.Wolf • spore o f G. depressula K a r s t . setacea (Pers.) Ces. & de Not.  Fig.38*  Fig.39. Ascus and  Fig.40. Ascus and spores o f G. Fig.41. Ascus and spores o f G.  p o t e n t i l l a e sp.nov© Fig.42. Ascus and spore o f G. Tepris Mout. Fig.43. Ascus and spore o f Gncmoniella C o r y l i (Batsch.) Sacc. Fig.44. Spore of Linospora ?3:nsularUC J p h k ' T i s .  Fig.45. Ascus  and spores of Apioporthe vepris (DeLacr.) Webm. Fig.46. Ascus and spores o f Cryptodiaporthe s a l i c i n a (Curr.) Webm.  Fig.47.  Ascus and spores of Cryptosphaeria populina (Pers.) Sacc. 48. Ascus and spores o f Diaporthe A r c t i i (Lasch.) N i t . Spore s of D. columbiensis E l l . & Ev.  Fig.  Fig.49.  PLATE V  PLATE' VI  F i g . l . Ascus and spores o f Diaporthe eres N i t * spores o f D. pardolata (Mont.) F c k l . Eutypella s t e l l u l a t a (Fr.) Sacc. ceps T u l .  Fig.2. Ascus and  Fig.3. Ascus and spores of  Fig.4. Spore o f Fenestella p r i n -  Fig.5. Ascus and spores o f Val3a ambiens (Pers.) F r .  Fig.6. Ascus and spores of V. ceratophora T u l . F i g . 7 . Ascus and spores of V. leucostoma (Pers.) F r . V. P i n i (Alb. & Schw.) F r .  Fig.8. Ascus and spores of  Fig.9. Ascus and spores of V.sp.  Fig.10, Ascus and spore of Melanconis a l n i T u l . and spore o f M. thelebola (Fr.) Sacc. Calosphaeria princeps T u l . Fr.  F i g . l l . Ascus  Fig.12. Ascus and spores of  Fig.13. Spores of Diatrype b u l l a t a (Hoff.)  Fig.14. Ascus and spores of D. disciformis (Hoff.) F r . F i g .  15. Ascus and spores of D. Macounii E l l . & Ev. spores of D. stigma (Hoff.) de Not. D i a t r y p e l l a betulina Pk. (Bolt.) Ces. & de Not.  Fig.16. Ascus and  Fig.17. Ascus and spores of  Fig»18. Spores o f Daldinia concentrica Fig.19. Spores of Hypoxylon aspera Mass©  Fig.20. Ascus and spores o f H. fuscum (Pers.) F r . of H. multiforme F r .  Fig.22. Spores of H. serpens Pers. ex  var. macrosporum M i l l e r . Fr.  Fig.21. Spores Fr.  Fig.23. Spores of He u stulatum (Bull.)  Fig.24« Spores of H. vogesiacum Pers. ex Sacc.  and spores of X y l a r i a Hypoxylon (L.) Grev.  *.  Fig»25. Ascus  PLATE TT cont  Figures 26 to 46 i n c l u s i v e are diagrammatic sketches of p e r i t h e c i a , to scale as indicated. Fig.26, Perithecium of Uncinula Aceris (DC.) Sacc. Perithecium of Dimerosporium Tsugae Dear. of Microthyrium Juniper! (Desm.) Sacc,  Fig.28, Perithecium  Fig.29. Perithecium of  Creonectria pithoides ( E l l , & Ev.) Seav, of Melanospora Townei G r i f f i t h s .  Fig.27.  Fig.30,  Perithecium  Fig.31, Perithecium, p a r t i a l l y  immersed i n stroma, of Hypamyces aurantius (Pers.) T u l ,  Fig.32,  Perithecium, erumpent from stroma, of Dibotryon morbosum (Schw.) Theiss. & Syd.  Fig,33. Perithecium, with s p i r a l l y wound appendages,  of Chaetomium ?spirale Zopfo  Fig.34. Immersed perithecium of  Acanthorhyncfau3 v a c e i n i i Shear. Coleroa Oxyriae Rostr.  Fig.36. Tuberculate perithecium of Bert!a  moriformia (Tode) de Not. Pseudotsugae F i t z p .  Fig.35. Setose perithecium o f  Fig,37» Ascocarp o f C a l i c i o p s i s  Fig,38, Perithecium, with compressed o s t i o l e , .  of Lophiostoma caulium (Fr,) de Not.  Figo39« Erumpent perithecium  of Mycosphaerella Tassiana (de Not.) Johans.  Fig,40« Perithecium  of Sphaerulina Gentianae Wehm. Fig.41. Perithecium of Capronia pleiospora (Mout.) Sacc. acuminatus (Sow.) Duby. comata N i e s s l .  Fig.42. Immersed perithecium of Ophiobolus Fig.43. Setose perithecium of Pleospora  Fig.44. Perithecium of Pleospora oligasca Bub.  F i g . 45. Beaked perithecium of Gnomonia p o t e n t i l l a e sp.nov. F i g . 46. Perithecium, immersed i n stroma, o f X y l a r i a Hypoxylon (L.)Grev.  PLATE VI  

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