40 
SOME COLORADO GRASSES. 
AGROSTIS EXARATA (Trin). 
(Northern Red Top; Mountain Red Top.)' 
Stems tufted, root fibrous, 1 to 2 feet high, clothed at 
base with many broadish leaves; sheaths loose and 
smooth; ligule elongated, lacerate; leaves flat, scabrous, 
especially on the upper surface; panicle slender, narrow, 
loose, purplish; outer glumes of about equal length, 
acuminate, rough on the keel; flowering glume one- 
third shorter than the outer ones, scarious, five-nerved, 
the apex about four-toothed; the palet, if present, very 
minute. 
This species in moist places in the mountains, and 
exceedingly variable. Not abundant in the region 
traveled over. Its value is not known, but it can hardly 
prove superior to Agrostis vulgaris. 
ANALYSIS. 
Moisture_ 7.84. 
Ash_ 8.98 
Fat_ 2.85 
Albuminoid nitrogen_ 8.25 
Crude fiber_20.22 
Nitrogen-free extract_59.70 
100.00 
