120 MR. W. B. HEMSLEY ON TWO SMALL 
98. Poa alpina, Linn.—Close to water at 16,200 ft. 
All round the northern hemisphere. 
99. Poa alpina, Zinn., forma nana.—In sandy gravelly soil, at 
18,000 ft. (no. 26), at 16,400 ft. (no. 103). 
100. Elymus sibiricus, Linn.—Close to water at 16,200 ft. 
North India, Central and Northern Asia, eastward to the Sitka 
Islands. 
101. Elymus dasystachys, 7rin.—Sandy plain at 16,000 ft., and 
valleys at 17,000 ft. 
Siberia, chiefly in the Altai and Baical mountains, and east- 
ward to Mongolia and North China. 
102. Pennisetum flaccidum, Griseb. 
Afghanistan, North-west India, and Tibet to Mongolia and 
North China. 
103. Stipa purpurea, Griseb. Gesamm. Abhandl., Gram. 
Hochasiens, p. 800.—Syn. Lasiagrostis tremula, Ruprecht, Sert. 
Thianschan. p. 35.—16,500 ft. 
Distributed from the Thianshan Mts. and South-east Kash- 
mir to East Tibet: Lake Rupshu, at 15,000 feet, Lance!; 
“ Tibet. oce.,”’ probably near the Lanak Pass, between 15,000 and 
17,000 feet, 7. Lhomson!; province of Gnari Khorsum, at Poti, 
17,000 feet, Schlagintweit, Cat. 7016!; Bhomtso Mt., up to 
nearly 18,000 feet, J.D. Hooker!; Thianshan, 8.E. of Chatyr- 
Kul, between 11,000 and 12,000 feet, Osten-Sacken ! 
104. Stipa ($ Lasiagrostis) Hookeri, Stapf. 
Affinis S. splendenti, Trin. (Lasiagrostis splendens, Kunth), 
sed robustior, spiculis majoribus, glumis fertilibus longe bifidis, 
antheris nudis. 
Gramen perenne. Rhizoma ut turiones cataphyllis ovatis 
obtusis firmis prominenter striatis imbricatim vestitum. Culmus 
floriferus ac innovationes basi vaginis vetustis firmis vestitus, gla- 
berrimus, levis, strictus, cum panicula 1-1} ped. altus. Folia 
tnnovationum vagina levissima, primo arcte involuta, demum 
plus minusve aperta, ligula brevissima graciliter denseque fim- 
briata, lamina convoluta longe setaceo-attenuata, glauca, stricta, 
4-10 poll. longa, dorso ecarinata, tenuiter striata, asperula vel 
