Rhododendron dauricum L.

TTCQTî South Central SIBERIA
UDDIV (Region of LAKE BAIKAL)
Rhododendron dauricum L.
l-2m tall, very common, forming a
solid understory layer, esp. in
valleys.
a) Sunny, arid, SE-facing steep slope of
bare windblown dune sands, gravel, scree
fields, and rock outcrops of decomposing
"granite’,* with bare soil steppe and "desert"
vegetation of Oxytropis (coeruleus?) ,
Festuca, Carex monosperma, Phlojodicarpus
popovii, Alyssum obovatum, Chamaerhodos
grandiflora, Ephedra, Scrophular.ia incisa,
Thymus serpyllum, Orostachys spinosa,
Polygonatum officinale, Rhaponticum uniflorurn,
(b) Open, sandy Pinus sylvestris forest on
top of dune and scree slopes, with dense
Rhododendron dahuncum, Alnus f rut ico sa,-
Lilium martagón, Cotoneaster lucidus,
Linnaea borealis, Sorbus sibiricus under-
story, 10-15 m above Lake Baikal at
''Academic Bay,"
c) Inner beaches and sandy bank of "Bukhta
Babushka" ("Grandmother's Bay"), 0-1 m
above lake level, just NE of "Academic
Bay," with Isatis oblongata, Festuca
rubra, Stellaria dichotoma, Agropyron,
Carex kirilovii, Papaver nudicaule.
BUKHTA PESCHANAYA ("Sandy Bay")—a vacation
settlement—on LAKE BAIKAL, at the base of
the Primorskii Range* ca. 90 km NE of mouth
of Angara River.
52°22'N, 105*50'E
Alt. ca. 450-550m
(1480-1800')
(Note:	This area is a designated "zakaznik,"
i.e., a nature reserve where limited economic
usm is allowed provided it is carefully
controlled and is not injurious to its
special scientific features.)
<0>TMAGED
H. H. lit is
J. fi. Coffey
M. F. Denton
1» M. Krasnoborov
28 June 1979
No. (fit
4th field expedition conducted to the U.S.S.R. under the USA/USSR
Cooperative Agreement in the Protection of the Environment, Project
VI.I - Protection of Native Species of Fl,ofa? Sponsored by the Cary
Arboretum of the New York Botanical Garden.
04369766