No. 31. 
MUNROA SQUARROSA Torr. (Crypsis squarrosa Nutt.) 
Plant annual, low, glaucous, more or less wooly throughout or glabrous except 
at the nodes. 
Root slender, filiform. 
Culms tufted, spreading, often prostrate, fasciculately branched, primary stems 
2 to 4 inches long, secondary shorter, naked internodes striate, angular, and hispid 
on the angles. 
Leaves ; radical and from sterile culms numerous, with flat blades 4 to 1 inch 
long ; of stem several, crowded with the spikelets atthe nodes, or endsof branches ; 
sheaths short, membranaceous, 7-nerved, ciliate ; blade flat, hispid, ciliate, acute, 
$ to 1 inch long; ligule a row of short, fine hairs. 
Inflorescences hidden in the tufts of leaves at the nodes and ends of branches. 
Spikelets 3- to 5-flowered, crowded in dense clusters at the apex of the branches ; 
first glume narrowly lanceolate, hyaline, 1-nerved, 14 lines long; second glume 
same but + line longer ; floral glumes herbaceous, becoming coriaceous, 3-nerved, 
tufts of a on Intern! nerves and near base of keel, entire or 2-toothed, 
2 to 24 lines long, the central nerve excurrent ina short awn; palet narrow, hyaline, 
pubescent on the two nerves complicate ; upper a in spikelets usually sterile. 
Grain translucent, cream-white, lance-oval, $ to } line long. 
PLate XXXT; 1, cluster of spikelets; 2, spikelet ; 3, second empty glume; 
4, first empty shat: 5, floral glume, side view, and 6, same spread out, dorsal 
view; 7, palet ; 8, pistil ; ; 9, mature grain. 
A low, tufted grass growing on elevated plains from Mexico to British America, 
usually associated with Buchloé dactyloides, but not liked by cattle. 
