42 



tlio most relished of pasture grasses; of consiclerablo importance in localities 

 near Kvaiiston and Medicine liow Iviver. Evauston, Inly 27 (3848 and 3858); 

 Medicine Bow River, Angnst 21 (4093). 

 Poa glauca \ alil. (Speak c.hass). — Tliissiiiooth, handsome bunch-grass occurs spar- 

 iuuly in the mountains. It prefers moist places, where, under favorable con- 

 ditions, it will attaiu a height of 12 to 18 inches. It is an excellent pasture 



grass, as evidenced l)y the extent 

 to which it is sought out by 

 stock. Head of Pole Creek, June 

 ill (3196). 

 Poa laevigata 8cribn. (Smooth 

 IjUNCII-cuass). — A bunch-grass 

 of mnch value, 1 to 2 feet high. 

 It has adapted itself to very 

 diverse conditions, as shown by 

 its being found iii all kinds of 

 soil — on the strongly alkaline of 

 the r.itter Creek Hats to that 

 of the o])en mountain parks; on 

 moist creek banks and dry hill- 

 sides and ridges. It develops 

 early, hence is of mnch value as 

 early summer jjasture. North 

 Vermilion Creek, .July 19 (3766); 

 Colorado-Wyoming line, July 22 

 (3807) ; Evanstcm, .Inly 27(3837); 

 Granger, July 30 (3891). 

 Poa leptoconia Trin. — A rare grass 

 of scatteiing growth, the stems 

 weak and the lea\es soft and 

 broad; observed but once as 

 scattering, individual speci- 

 mens on th(! broken banks of a 

 streamlet in a subalpiuo ]>ark. 

 Battle Lake, Angu.st 16 (1019). 

 Poa longepedunculata Scribn. 



(LONG-.STALKKI) BUNCH (iU.VSS). 



— A remarkably line bunch- 

 grass, the tufts large and close, 

 20 to 30 inches high ; leaves short 

 and largely basal, the numerous 

 naked stems slender and erect; 

 ])aniclo amjile but close. It is a 

 grass of the hill regions, occupy- 

 ing the slopes and summits, often in considerable abundance. Sheep Mountain, 

 July 3 (.3292). 

 Poa lucida Vasey (Siiixixc Brxcn-OUAss). — .V wi<lely distributed gr.-iss, but never 

 greatly abundant; erect in habit, with long ample leaves; of excellent (|uality, 

 and adapting itself to various habitats, (jreen 'lop. .June 29 (3257; L.-iramie 

 U'iver, .Inly 20 (3115); Woods Landing, August 7 (390ti). 

 Poa nemoralis L. (Wood .MKAi)ow-(iRAss). — (Jrowing in bunches, leaves and stems 

 slemler, the, panicle am]>le, loose and spreailing; an excellent grass, attaining a 

 height of 2 feet or more. It occurs in )>artly wooded .areas, on the sloj)es or on 

 the creek banks, where it is often a very imimrtant ]iart of the forage. Head of 

 Vermilion Creek, July 20 (3794 j; (irand Kncauipment Creek, August 13 (3983). 



Fio. 15. — Neviida I'.liie->rrass il'nn nerademig) : a, 

 tiiuiity gl nines; h, lldiftn. 



