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LIST OF PLANTS. 
Family Desmidiace^e. 
Cosmarium Cucumis, Corda. Tibet. 
Family Oscillariace^e. 
Schizosiphon Render soni, n. sp. Nurla_, Tibet. 
Phormidium lucidum, Ag. ? Hot spring, Tibet. 
Oscillaria ? near 0. Mougeotiij Borg. Dras valley, Tibet. 
Family Palmellace^. 
Pleurococcus cinnamomeus, Menegb. Tibet. 
Family Diatomace^. 
Eunotia Arcus, Ebrb. Tibet. 
Cymbella gastroides, Ktz. Tibet. Yarkand. 
cuspidata, Ktz. Tibet. Yarkand. 
Pediculus, Ktz. Tibet. 
Navicula cryptocephala, Ktz. Tibet. 
Pinnularia nodosa, Sm. Tibet. 
P. cocconeoides , Rabb. Tibet. 
Amphora Hohenackeri, E-abb. Tibet. 
Synedra Arcus, Ktz. Tibet. 
S, Ulna, Ebrb. Tibet. 
S. tenuissima, Ktz. Tibet. 
Gomphonema glaciale, Ktz. 
G. tenellum, Ktz. Tibet. 
Odonitidium hiemale, Ktz. Tibet. Yarkand. 
O. Mesodon, Ktz. Tibet. 
Denticula obtusa, Linn. Tibet. Yarkand. 
