NORTH-WEST MONGOLIA AND CHINESE DZUNGARIA. 441 



Polygonum vivipabum, Linn. 



No. 48. Mountain-sides above 21.50 m. where the soil is moist, forming 

 alpine meadows, or on dry shady slope where some soil has accumulated. 

 Western Tannu-ola Mts. at the head of the Saklya River. 



Distribution. N. Europe, idpine districts throughout Siberia, Thibet, 

 N.AV. India, and N. America. 



THYMEL^ACEiE. 



Daphne Mezereon, Linn. 



No. 258. Damp hollows in the " Taiga " or forest associated with grasses 

 under the shade of ^ihies sihirica and Populus suaveolens. Forests round 

 Kushabar at 320 m. 



No. 309. Shade of Poplar and Spruce on the Amil River. 



Distribution. Europe and Asia Minor. 



No. 309 has neither flowers nor fruit, but is most probably D. Mezereon. 



BLiEAGNACE^. 



HiPPOPHAE Rhamnoides, Linn. 



No. 498. On sandy shingle by the banks of the Lower Kemchik River 

 associated with Pojmhis suaveolens. 



Distribution. Europe and temperate Asia. 



EUPHORBIACE^. 



Euphorbia alpixa, C. A. Me//. 



No. 320. Above 600 m. in open glades and meadows of Abies sibirica 

 forest on the Amil River. 



Distribution. The Caucasus and Altai regions and Irkutsk. 



Euphorbia lctescens, C. A. Me//. 

 Distribution. The Altai and Dzungaria. 



Euphorbia near E. subcordata, C. A. Mey. 



No. 78. Barren desert hills at 1500 m., Kundi Kureen and Kundi Kalan 

 Rivers. 



URTICAGE^. 



Ulmus turkestanica, Kegel. 

 No. I87. Gardens and streets, Chuguchak. 

 Distribution. Turkestan. 



There are probably other forms which may be placed under U. turkestanica,. 

 in which case the distribution would be somewhat wider. 



