SOME COLORADO GRASSES. 
121 
BOUTELOUA RACEMOSA (Lag.). 
(Grama Grass.) 
Stems tufted, smooth, from underground stems, 1 to- 
2 feet high; leaves 6 to 10 inches long, narrow, involute, 
rough on the upper surface; sheaths shorter than the 
nodes; ligule truncate, very short; flowers in a one-sided 
raceme; spikelets numerous, reflexed; outer glumes lan¬ 
ceolate, acuminate, the upper and larger scabrous all over,, 
the lower very narrow, rough on the keel; flowering 
glume rounded below, apex two-toothed, the mid-rib ter¬ 
minating in a mucro; sterile flower of one or two scales, 
three-awned, the middle one conspicuous. 
Abundant in localities in the foothills. Less- 
common on the plains near the mountains. 
BOUTELOUA HIRSUTA (Lag.). 
(Grama Grass.) 
Stems slender, smooth, geniculate at base, 1 to 2 feet 
high ; leaves narrowly linear, flat; ligule a hairy fringe ; 
spikes one to four; outer glumes linear, acuminate, the 
lower narrower, membranous, ciliate on the acute keel^ 
upper glume scabrous all over, dotted with dark, warty 
glands below the middle on the flattened keel, from each 
of which, occasionally, arises a short hair; flowering' 
glume very villous below the middle, apex two-toothed 
and bristle-pointed; palet equal, acutely two-toothed, 
nerves prominent; sterile flower on a short, glabrous- 
pedicel, exceeding the glumes and equaling the fertile 
flower. 
This species has much greater vigor than the preced¬ 
ing, but is not so widely distributed. It ought to be a 
valuable grass. 
