Pinus sibirica Du Tour

USSR. (Region of LAKE BAIKAL)
Pinus sibirica DuTour
a)	Gravel bar of very coarse ice-pushed
stones on edge of lake, with Stellaria
diehotoma, Ribes sp., Androsace lactifera(?).
b)	Sedge marsh (Carex spp., Scirpus) with
open water (Hippuris vulgaris, Ranunculus)
just back of gravel bar.
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BOTANICAL
GA
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c)	Gently-sloping or flat gravel "pavement"
with steppe flora,, on first terrace ca. 10m
above lake level, with Lychnis sibirica,
Lilliim pumilum, Leontopodium, Koeleria
cristata.
d)	Very steep (45°) SE-facing, dry talus
slope and fellfields, with loose soil and
gravel free of plants except for Dryas
mats and cushions of Androsace incana,
Chamaerhodos altaica, £. sp., and their
hybrids(?), with isolated plants of
Oxytropis sp.
e)	Calcareous (?) cliffs on steep slopes.
f)	Groves of Pinus sylvestris and Larix
sibirica with Anemone patens ssp., Hedysarum,
Arid lower slopes of the Primorski! Khrebet
(= Range), overlooking the west shore of
LAKE BAIKAL at Mys (= Point) Zugduk, on
the Maloe More (= Small Sea).
53°23 fN,>107°25'E
H.	H. lit is
J. C. Coffey
M. F. Denton
I.	M. Krasnoborov
Alt. 456-550m
1 July 1979
No.
Third field expedition conducted to the U.S.S.R. under the USA/USSR
Cooperative Agreement in the Protection of the Environment, Project
IV.I - Protection of Native Species of Flora. Sponsored by the Cary
Arboretum of the New York Botanical Garden.
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