251 





Vui. 547. Poa lettennani V.isey, Coutiib. Nat. Herb. 1 : 273. 

 1N9;>. Lkttk Umax's Hi.i ix.kass. A densely tnfti'd, low peifniiiiil 

 0..J to 1 (lui. liijili, with loo8f shi-iitlis, sliort, liat leaves uinl ohlou}^, 

 liither deusely-llowend jiaiiieles 1 to L' cm. long. Spikelets 3 to 4 

 uuii. long, with rather broad and ni'arly eijiial empty ^jliimes (a) 

 exceeding in length the ad,ja<-ent llowcring glumes, which are 2 to 

 3 mm. long, ob.senrely nerved. <)l)lii.sf. and glabrous. .Summits of 

 high mountains, ('olorado. .Inly, August. 



