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Davidsonia Jun 1, 1972

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Array DAVIDSONIA
VOLUME 3        NUMBER 2
Summer 1972
T_
CAMPUS PLANTS
i~ Cover
Scene from near the lookout at the head of the Main
Mall looking over Howe Sound toward Bowen Island
DAVIDSONIA
VOLUME 3 NUMBER 2 Summer 1972
Davidsonia is published quarterly by The Botanical Garden of The University of British
Columbia, Vancouver 8, British Columbia, Canada. Annual subscription, four dollars.
Single numbers, one dollar. All editorial matters or information concerning subscriptions should be addressed to the Director of the Botanical Garden.
Acknowledgements
Photographs for this issue were taken by Dr. C. J. Marchant and Dr. R. L. Taylor.
Special acknowledgement to Mrs. Sylvia Taylor for her assistance in preparation of
photographic materials and layout. Dr. J. W. Neill assisted in identification and location
of plants on the campus. CAMPUS PLANTS
ROY L. TAYLOR
The University of British Columbia campus lies in one of the most favourable locations in the lower
mainland of British Columbia. Its position on Point Grey which juts into the Georgia Strait provides an
exciting view of the mountains to the north and west and on clear days Vancouver Island.
The initial plantings on the campus began in 1917 and much thought and careful consideration has
been given to subsequent landscaping of the campus.
In the post world war II period Professor Frank Buck and later Dr. John W. Neill were instrumental
in bringing many interesting exotic plants to the campus. Dr. Neill's work is best seen in the landscaping
of the Vanier Residences and in the immediate area of the Faculty Club/Graduate Centre.
The plants of the campus are now used quite extensively by a number of different departments in
both teaching and research and the continued interest and development of the landscape elements on the
campus should provide additional material in future years.
The monument erected in 1922 to commemorate the generous action of student bodies in providing
for their Alma Mater and citizens of B.C. in a way summarizes my own thoughts about the plants on the
campus. The monument entitled "Tuum Est—It Is Yours" expresses not only the past contributions of
students and staff on the campus but also those of future students and staff to the many beautiful trees,
shrubs and herbaceous plants found on the campus. Every effort should be made to continue to protect
and further develop the plant elements on our landscaped environment.
9
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View of the Buchanan Courtyard with the Ladner Carillon Tower in background. Trees
on right are Populus deltoides, Cottonwood. At the northeast corner stands one of the
few remaining original Arbutus menziesii trees on the campus.
This summer issue of "Davidsonia" attempts to show some of the unusual as well as the common
landscape plants at U.B.C. and the illustrated text has been organized according to campus areas. To help
identify each area either pictures of buildings or works of sculpture found in the area are contained in
each section. The emphasis has been placed on a pictorial presentation of the plants so that people who
visit the campus will be able to enjoy and identify some of their favourite plants. The illustrations have
been taken over a two year period and represent plants at varying stages of development and maturity
according to the season.
The campus abounds in many excellent examples of ground covers and flowering shrubs and a visitor
will find something of interest in every season. The native forest tree species of southern British Columbia can still be found in many areas of the campus and have been used to particular advantage near
International House and the Nitobe Memorial Garden.
Buchanan Building—Sedgewick Library
This area on campus contains some of the oldest tree plantings and a small remnant of a much larger
rock garden found immediately north of the Ladner Tower. This small garden has been retained during
the construction of the new undergraduate library and continues to be a source of enjoyment to the many
students and staff who use the area frequently.
11
Opposite
A view of the Rose Garden and native stand of trees. The Rose Garden contains several
well-known All America and award winning roses as well as a collection of miniature
roses. The two shrubs seen in this photograph are the Provincial emblem of British
Columbia, Cornus nuttallii or the Western Flowering Dogwood. An extensive collection
of Rhododendrons are planted below the stand of native trees. Many of the Rhododendrons in this collection were obtained from Mr. & Mrs. Greig of Royston Nurseries on
Vancouver Island. One of the numerous plantings in
the Buchanan complex showing
effective use of Cotinus coggygria,
the Smoke Tree, and Populus
deltoides, Cottonwood, with a
ground planting of Yew, Taxus
baccata 'Repandans'. The Cotinus
with its burgundy foliage and fluffy
fruiting inflorescences gives an
appearance of a smoky bush in the
fall months.
Catalpa Lane, one of the oldest
avenues on campus. This is one
area where Catalpa bignonioides is
found on the campus. A t the head
of the lane can be seen two large
Japanese Cedar, Cryptomeria japonica. Sequoiadendron giganteum, Giant Redwood, at the
northwest corner of the Main Libarry. The new
Buchanan Office Building is seen in the background.
i
111
111
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Cunninghamia lanceolata immediately northwest of
the Ladner Tower. This is a fine specimen of
Chinese Fir. Just to the right of Cunninghamia is
the unusual Corkscrew Willow, Salix matsudana
'Tortuosa'.
The class tree of 1925. Each year the graduating class
donates and plants a tree. Many of these trees are
now important landscape elements on the campus. '#?tt*
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TVze steel sculpture on the plaza immediately below the Main Mall is the centre of an
interesting landscape area on the campus. In the foreground can be seen the formally
planted Plane-tree, Platanus X hispanica. On the right can be seen a few branches of
Sorbus aucuparia, the European Rowan, which has colourful red berries in the latter
part of summer and fall.
Lasserre Building-Music Building-North Administration Building
This area on campus is dominated by the plaza containing the untitled 23 foot steel sculpture by
Gerhard Class. The covered walkway, which was initially designed as part of a system of walkways in
this area of campus, has many formal planting arrangements. A number of these are illustrated. The upper
end of the plaza area meets the Main Mall with its large dominant Red Oaks. One of the most interesting
plants found in the immediate area is the Purple Leaf Birch, Betula pendula 'Purpurea', found at the southeast corner of the Lasserre Building. Clematis montana, Anemone Clematis, trails along the east side of
the plaza area of the Lasserre Building. This is a very colourful walkway during early spring. Near the
west corner of the Old Auditorium is found a planter of Rhus typhina 'Laciniata', an attractive cut leaf
Sumac. A number of other interesting shrubs are found around the buildings in addition to some interesting climbers which were featured in a previous number of "Davidsonia". A row of upright pyramidal
Carpinus betulus, Common Hornbeam. This attractive shrub row
completes the north side of the
Music Building plaza area.
The ground covers consist of a
variegated Elaeagnus pungens
'Aureus' and the common blue
Periwinkle, Vinca minor.
The northeast corner of the Music
Building featuring excellent
examples of the trailing Cotoneaster
dammeri with Pinus mugo.
An attractive plaza planting of the
low growing Cascades Mahonia,
Mahonia nervosa. This planting is
particularly colourful in the fall
when the leaves colour and the
glaucous blue fruit form clusters
in the foliage. 16
Immediately to the north of the Lasserre Building adjacent to the plaza near the President's Office is
one of the most interesting landscaped garden features in the central core of the campus. This unique
boulder garden is shown in the photograph above. The garden consists only of boulders with a gravel base
and was designed by Dr. John W. Neill. It is an aesthetically pleasant landscape for the suite of offices
facing the garden. The boulders for this garden were all obtained locally and the garden is enclosed with
Moss Sawara Cypress, Chamaecyparis pisifera 'Squarrosa'. To obtain the best view of this garden one
should see it from the lower office areas of the Lassere Building or from the steps leading up to the
south entrance of the building. Left: Asiatic Head sculpture by Otto B. Fischer-Credo. This interesting sculpture dominates the north end of the covered walkway near the Music Building. Right: The north
plaza of the Lasserre Building showing statue entitled "Fertility" by Jack Harman. The
mounds in the plaza are covered with English Ivy, Hedera helix.
17
Left: A concrete sculpture entitled "Three Forms" by Robert Clothier found on the
north plaza of the Lasserre Building. Right: One of the large planters of the Lasserre
plaza containing a specimen of Cotinus coggygria, Smoke Tree. Heather, Erica cornea,
is also found in the planter. The tree in the background is Liriodendron tulipifera,
Tulip Tree. Cotoneaster salicifolia var. fioccosa, a
plant with attractive new leaves that
are upright in the spring and become
horizontal as they mature. Plants produce
abundant clusters of red fruit giving fall
and winter colour.
Daboecia cantabrica, Irish Heath, a close
relative of true heather which produces
a fine show of colour either white, pink or
red in the late summer.
18
On this page are found a number of important ground covers used in the main part of the campus.
Arctostaphylos uva-ursi, a native
member of the Ericaceae in B.C.,
known as Kinnikinnick. The example
shown is from a circular planter
behind the theatre. This particular
planting is outstanding for its
complete cover.
Hypericum calycinum, St. John's Wort. One of the
most widely used colourful ground covers on the
campus. This addition to our landscaping in British
Columbia is the direct result of the influence of
the California landscape school. Ponderosa Cafeteria Area
The gardens in this area were designed by Dr. John W.
Neill. The name of the cafeteria is derived from the fine speci-
men of the native Ponderosa Pine,  Pinus ponderosa.  The   j
specimen tree stands in a depressed garden immediately in
front of the cafeteria.
Bank of the lower garden of the
Ponderosa Cafeteria planted with the
Japanese Maple, Acer palmatum. In
addition, two species of Cotoneaster are
used as the dominant ground cover;
Cotoneaster salicifolius 'Repens', and
C. horizontalis.
19
An interesting ornamental tree, native
of China but widely planted in Japan,
growing at the corner of the Ponderosa
Cafeteria, Sophora japonica, the
Japanese Pagoda Tree. al
A colourful shrub scattered occasionally
throughout the campus Weigela florida
'Variegata'. The variegated foliage
provides an interesting contrast against
dark green shrubby background.
A colourful shrub used extensively on the
campus with pink flowers Weigela
florida. This shrub is easily grown with
minimum care and is a most attractive
plant against walls or tree backgrounds.
20
Blechnum spicant, the Deer Fern, a
native fern of the Pacific northwest that
has become an interesting component of
many of the landscape areas particularly those in wooded or shaded areas.
Barberry, Berberis verruculosa, a slow-
growing decorative Chinese shrub which
has deep yellow or orange coloured
flowers early in the spring and deep blue
fruit in the fall. IB.
On the right can be seen one of the most
pleasant walks on campus during the
early spring months and a walk that provides
an excellent cool retreat during the late
summer. The location is on the north side
of the Ponderosa Cafeteria. On the left
of the photograph can be seen a row of the
numerous flowering cherries, Prunus
serrulata, on the campus that bloom profusely during May and June. Below the
flowering cherries are beds of Cotoneaster
horizontalis. On the right side of the
street are graceful European Birch, Betula
pendula. This sidewalk leads to the
Vanier Student Residences.
In the photograph seen below right is shown
one of the more unusual shrubby ground
covers found on the campus, Elaeagnus
pungens 'Aureus'. This plant should
probably be more widely used for its
variegated foliage characteristics. The leaves
remain bright and shiny throughout the
year and the yellow variegation produces an
attractive contrast to the green foliage. Education Building Area
A t the left can be seen the unusual four
tree cluster of Black Locust, Robinia
pseudoacacia 'Umbraculifera', which is
found at the intersection of University
Boulevard and the Main Mall
immediately to the northeast of the
Education Building. The under-storey
planting is the widely used Zabel's Laurel,
Prunus laurocerasus 'Zabeliana'.
22 An untitled metal sculpture by Paul
Deggan found on the wall near the east
entrance of the Education Building.
A planting of Juniperus squamata
'Meyeri' along the shaded east side of the
Education Building. This popular
juniper was introduced from a Chinese
garden in 1914. Mature shrubs reach
a large size. J-iUL*
23
The Main Mall
When the initial landscape plan for the campus was made in 1913 a central wide mall was designed to
serve as the principal axis for the construction of the new University campus at Point Grey. Although
there have been major modifications of this original plan the central axis, namely the Main Mall, has been
retained on the campus. At an early stage in the development this main mall was planted on either side
with the Northern Red Oak, Quercus rubra. The particular picture shown here was taken in front of the
new MacMillan Building looking north. Recent construction of the new undergraduate addition to the
Sedgewick Library has maintained the continuity of the Oaks along this mall by placing them in thirty
foot caissons with the building depressed beneath the mall. It is hoped that these Oaks in the caissons
will continue to prosper so that the continuity of this important landscape view of the campus will be
retained. Mature trees have reached a height of over 30 meters. MacMillan Building of Agriculture and Forestry
A new building complex opened in the late
1960s constructed of bricks from Sumas Mountain clay. The interior courtyard features an untitled diorite sculpture by George Norris. The
photograph on the right shows diagonal series of
steps that lead into the courtyard. The shrubs adjacent to the steps are Zabel's laurel, Prunus
laurocerasus 'Zabeliana'.
Untitled statue by George Norris. A large specimen tree of Arbutus
menziesii, the Pacific Madrone,
located immediately south of the
MacMillan Building.
25
The characteristic peeling bark of
the mature trunk of Arbutus
menziesii. Yucca fllamentosa,
Adam's Needle, a commonly used plant throughout the lower mainland
of British Columbia, but
rare as a landscape
element on the University
campus. A small collection of Yucca is found
near the southwest corner
of the new rusty steel
Mechanical and Civil
Engineering Building.
26 Vanier Student Residences
The Vanier complex of student residences found
in the lower mall region of the northwest part of the
campus contains excellent examples of plant combinations used to provide a pleasant environment for
student residences. This area on the campus has been
established for nearly fifteen years and many of the
trees and shrubs are now reaching a mature form.
This pleasant area on campus was designed by Dr.
John W. Neill. The upper photograph shows one of
the many curving walkway systems leading to the
residence areas with Rhododendrons on either side
of the walk. Rhododendrons are used extensively as
an attractive foliage component of this residence
complex and in the early spring through to early
summer the Rhododendrons provide a spectacular
show of flowers. The dominant tree seen in the
photograph is Populus trichocarpa, Black Cottonwood.
In the photograph below the careful planning of
the many garden areas in the residences is exemplified with the fine ground cover of Cotoneaster hori-
zontalis and a single specimen tree of Crataegus
monogyna 'Stricta' accentuating not only the plantings but the buildings themselves. The residential
complex was designed by Thompson, Berwick, Pratt
& Partners and is made of a warm coloured brick
manufactured from Sumas Mountain clay.
27 JTiP
r:i
JP'   ■   -.;* '('' ;l
28
&%*   *
A combination ground cover planting featuring Chamaecyparis pisifera
'Squarrosa', Euonymus fortunei 'Gracilis', Cotoneaster horizontalis, Calluna
vulgaris 'Goldsworth Crimson'.
Combination planting with the upper planter containing Rhododendron
smirnowii and Viburnum rhytidophyllum and the lower planting containing
the Tall Oregon Grape, Mahonia aqiiifolium. Stranvaesia davidiana, Chinese Stranvaesia, an unusual Asiatic shrub that is
found in many combination plantings. This particular planting shows how
effective this shrub can be, placed along a northerly exposure. The shrub is
used for its form and for the colouring of the leaves and fruit.
29
Stag's-horn Sumac, Rhus typhina with Cornus alba 'Sibirica', Westonbirt
Dogwood, an interesting combination of two shrubs used as a decorative bed
with screening attributes for residences. One of the pathways leading to the
residences featuring extensive Rhododendrons used as under-storey planting
for native coastal forest tree species.
The common conifer here is Western
Red Cedar, Thuja plicata.
30
A courtyard with a northerly exposure
adjacent to one of the residence
entrances. The specimen tree is the
Tamarack or American Larch, Larix
laricina and the under-storey planting is
Kalmia latifolia. the Mountain-laurel. Two specimen trees, the American Elm, Ulmus americana, which were grown from the
same seed lot. The tree on the left represents the typical form whereas the tree on the
right is a unique globose form which has potentiality for use as a street tree. These two
trees are found at the corner of University Boulevard and West Mall.
A colourful and most successful compact shrub used for landscaping in semi-shade or
full shade conditions, Skimmia japonica. The evergreen foliage remains attractive
throughout the year and the white flowers and red berries are showy during the spring
and fall seasons respectively.
31 32
Old Arboretum
Many large exotic specimens are found in the
old arboretum below the West Mall. Shown to the
right is a mature trunk of the Paper Birch, Betula
papyrifera. Several new office buildings have been
constructed on the site and a serious attempt has
been made to retain many of the important specimens in the arboretum. The arboretum was designed and established by Professor John Davidson
during the early construction period of the University campus. The trees and shrubs are arranged
according to the evolutionary system proposed by
Engler and Prantl. The conifers are found in evolutionary sequence beginning at the northwest
comer of the arboretum. The deciduous and evergreen broad leafed non-conifers are arranged in
evolutionary sequence beginning with the catkin
bearing trees and shrubs such as the Alders,
Birches and Willows. Most of the trees in the
arboretum are labelled and are used extensively
by people studying botany or forestry.
On the lower right can be seen the details of the
cones and needles of the Japanese Umbrella Pine,
Sciadopitys verticillata. A fine flowering specimen tree of Western Flowering Dogwood, Cornus
nuttallii. The species is the provincial emblem of British Columbia. This
particular plant may be found at the Graham Residence in the extensive lawn
area just above the cliffs.
33
An unusual specimen of the Norway Spruce, Picea abies, found near the
U.B.C. Entrance number 6 and the Lower Mall. This tree is near the site of
the original Japanese Garden prior to the development of the well-known
Nitobe Memorial Garden. A most unusual flowering and fruiting shrub
grown in the Vancouver area is the Medlar,
Mespilus germanica. This shrub, well-known in
Europe for its fruit used in jams and jellies,
is not common in North America. The specimen
shown is espaliered against the south wall of
the handball court in Cecil Green Park.
34
An Asian tree which is often used in landscaped
plantings where graceful form and attractive
foliage is desirable. The Katsura-tree, Cercidiphyl-
lum japonicum is found at the northwest corner
of the Panhellenic House near the Nitobe
Memorial Garden. Chamaecypaeris obtusa 'Filicoides', the Fern-spray Cypress, found in the
rock garden area near the west side of the Alumni House, Cecil Green Park.
The garden at Cecil Green Park contains many fine specimens of horticultural interest.
35
Pieris japonica is one of the most widely used small flowering and foliage
shrubs in the west coast landscape. The fine mature specimens shown serve
as part of the shrubbery border along the driveway to the President's
residence. i'       *K*»
f
^
HI Botanical Garden Staff
Opposite: "Transcendence", a cast and welded
fountain sculpture in the pool of the Thea Koerner
Graduate Centre. Lilacs, Syringa vulgaris and
Cotoneaster franchetii ring the fountain pool.
Opposite the pool can be found excellent specimens
of Carpinus tschonoskii, a Hornbeam native to
Japan, Korea and China.
REFERENCES
Hilliers' Manual of Trees and Shrubs. 1971. Hillier and
Sons, Winchester, England.
Wyman, Donald. 1971. Wyman's Gardening Encyclopedia.
The MacMillan Company, New York, New York.
Director
Dr. Roy L. Taylor
Supervisor of Operations
Mr. Kenneth Wilson
Research Scientist (Cytogenetics)
Dr. Christopher J. Marchant
Research Scientist (Horticulture)
Dr. John W. Neill
Research Assistants
Mrs. Marilyn G. Hirsekorn
Mrs. Sylvia Taylor
Secretary to the Office
Mrs. Morag L. Brown
Senior Technician (Horticulture)
Mr. A. James MacPhail
Plant Accession System
Mrs. Annie Y. M. Cheng
Senior Gardener
Mr. James O'Friel
Gardeners
Mr. Harold Duffil
Mr. Leonard Gibbs
Mr. Sam Oyama
Mr. Tomomichi Sumi
Mr. David Tarrant
Mr. Isao Watanabe
CLIMATOLOGICAL SUMMARY*
Data                                              1972
April
May
June
Mean temperature
44.15-F
55.15"F
57.25°F
Highest temperature
63 "F
81°F
71°F
Lowest temperature
320F
41 °F
460F
Grass minimum temperature
21°F
31"F
36°F
Total rainfall/No. days with rainfall
4.69/18
.99/11
2.06/14
Total snowfall/No. days with snowfall
NIL
NIL
NIL
Total hours bright sunshine/possible
135.9/404.02
228.1/468.03
168.0/482.29
Max. wind speed for 1 hour/direction
14/SE
16/SE
12/NW
Mean mileage of wind at 3'
87.6
79.0
65.4
Mean mileage of wind at 40'
128.9
113.5
103.0
*Site: The University of British Columbia, Vancouver, B.C., Canada.
Position: lat. 49' 15'29"N; long. 123' 14'58"W. Elevation: 342.6'. Periwinkle, Vines minor,
a common ground cover
used in many areas
on the campus.
DAVIDSONIA
Volume 3      Number 2     Summer 1972
Contents
Campus plants 9
Buchanan Building-Sedgewick Library 11
Lassere Building-Music Building-
North Administration Building 14
Ponderosa Cafeteria Area 19
Education Building 22
The Main Mall 23
MacMillan Building of
Agriculture and Forestry 24
Vanier Student Residences 27
Old Arboretum 32
•price printing ltd.

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