SOME COLORADO GRASSES. 
127 
CAREX RUPESTRIS (All.). 
Culms obtusely angled, from a spreading base, 1 foot 
high ; leaves channeled, long pointed, shorter than the 
culm ; spike terminal, single, light brown, clavate; peri- 
♦ 
gynium, upright, plano-convex, contracted above into a 
stout, truncate, two-toothed beak, covered by the pale 
brown, strongly keeled, acuminate scale; akene ovate, 
somewhat flattened. 
A chief constituent of wet meadows in the mountains, 
growing in broad, conspicuous patches, and furnishing 
considerable winter feed. 
ANALYSIS. 
Moisture_ 8.59 
Ash_ 9.12 
Fat_ 1.96 
Albuminoid nitrogen_ 8.08 
Crude fiber_32.33 
Nitrogen-free extract_48.51 
Total___ 100 00 
LUZULA SPADICEA (D. C.), var. SUBCONGESTA (Watson). 
(Wood Rush.) 
Stems 1 to 2 feet high, smooth; leaves broad, hairy 
at the base; inflorescence nodding, exceeding the tracts; 
perianth dark brown, the segments all pointed, except the 
two lower; capsule very acute. 
Abundant in localities in the mountains, where it 
furnishes some of the native summer grazing. 
