SOME COLORADO GRASSES. 
91 
PASPALUM GLABRUM. 
Stems prostrate, ascending, glabrous, 8 to 12 inches 
long; leaves glabrous, lanceolate, linear, shorter than the 
sheaths; the upper sheath enclosing the base of the 
panicle, the lower ones hairy at the throat; ligule trun¬ 
cate, lacerate, enfolding the stem; spikes two to four, 
slender, about 2 inches long; glumes equaling the pur¬ 
plish flower, both hairy. 
This grass is a persistent weed, and is widely distrib¬ 
uted in Northen and Southern Colorado. In lawns it 
quickly takes possession, subduing all competitors for the 
occupancy of the soil. 
ANALYSIS. 
Moisture_ 9.10 
Ash_ 16.98 
Fat_ 2.17 
Albuminoid nitrogen_ 6.68 
Crude fiber_ 16.23 
Nitrogen-free extract_57.94 
Total_100.00 
ALOPECURUS ARISTULATUS (Michx.). 
Culms geniculate, smooth, ascending from a decum¬ 
bent base, often rooting at the lower joints; sheaths 
inflated, loose; ligule prominent; leaves linear, acute, 
somewhat glaucous, rough on upper surface; spike cylin¬ 
drical, very slender, pale green; glumes hairy outside, 
obtuse; flowering glume truncate, glabrous; anthers 
yellow; awn straight. 
This species grows along ditch banks and is very leafy. 
