92 
SOME COLORADO GRASSES. 
ORYZOPSIS CUSPIDATA (Benth.). 
Stems about 2 feet high, smooth, growing in stout, 
rigid clumps, some of the lower joints geniculate; leaves 
linear, involute, 6 to 8 inches long, scabrous on the upper 
surface, the upper leaf enclosing the base of the panicle; 
panicle 6 to 12 inches long, loosely spreading; branches 
in 2s, divergent; spikelets one-flowered, on capillary pedi¬ 
cels; outer glumes pubescent, inflated, conspicuously five- 
nerved, the apex attenuate into a beak; flowering glume 
ovate, covered with a profusion of long, silky hairs, and 
tipped with a stout awn ;• palet smaller, of similar texture. 
This grass seems to succeed best at an altitude of 
5,000 feet. It occurs in the high mountain parks, but 
only in isolated, dwarfed specimens, and not in stout 
tufts. It is one of the most valuable of the dry land 
grasses. 
ANALYSIS. 
Moisture_ 8.60 
Ash_ 7.83 
Fat_ 2.72 
Albuminoid nitrogen_ 7.36 
Crude fiber_ 15.05 
Nitrogen-free extract_67.04 
Total_100.00 
