SOME COLORADO GRASSES. 
77 
SPOROBOLUS CUSPIDATUS (Torr). 
Culms geniculate, erect, from running root-stocks, 2 
to 3 feet high; leaves narrowly linear, flat, becoming 
involute, scabrous, especially on the margins; sheaths 
bearded at the throat and on the margins, mostly shorter 
than the nodes; ligule a short, ciliate fringe; panicle often 
1 foot long, narrow, pyramidal, its base enclosed by the 
long sheath of the upper leaf, finally exserted; spikelets 
lead colored, small; outer glumes unequal, acute, finely 
scabrous; flowering glume ovate, acuminate, rough on the 
greenish keel; palet shorter than its glume, acute. 
This grass is abundant at 5,000 feet, in Northern 
Colorado. It occurs in the mountain parks, but in less 
quantity. 
ANALYSIS. 
Moisture_ 8.16 
Ash_ 9.43 
Fat_,_1_ 2.66 
Albuminoid nitrogen_10.88 
Crude fiber_17.32 
Nitrogen-free extract_59.71 
Total_100.00 
