Wo. 4d. 
BOUTELOUA RACEMOSA Lagasca. 
Culms in close tufts from a strongly rooted rootstock 2 to 3 feet high, un- 
brane 
Leaves with blades 4 to 12 inches a] 2 lines wide, long-pointed, scabrous; 
sheath loose, sparsely pubescent; ligule s 
florescence racemose, 6 to 9 ished long, composed of 20 to 40 alternate, 
sometimes one-sided, short-pedicelled or nearly sessile, short spikes, these spread- 
ing or recurved, sometimes approximate, sometimes rather distant; common rachis 
angular, scabrous. 
ikes 4 to 4inch long, variable in thickness and fullness, usually of about 5 
spikelets, sometimes reduced to 2 or 3. 
Spikelets 2 to 3 lines long without the awns, each 2-flowered. 
glumes unequal; lowest one-third shorter than the upper, narrow, awn- " 
Empt 
pointed; upper 2 lines long or more, ovate-lanceolate, acute; flowering glume about 
2 lines long, oblong, spn or somewhat pubescent on the a Sopewel near 
the apex, with 3 short a 
Palet a i et as its eer 2-nerved, 2-toothed at apex. Imperfect flower 
varying in fea doe from a few rudimentary awns to a nearly full-formed 
flower, or in var, aristosa having a long-awned flowering glume and rudimentary 
scales. 
PuaTE XLIII: above, spike of about 3 spikelets; below, flower showing the 
empty glumes, perfect and imperfect flowers. 
This is perhaps more widely diffused than any other species, ranging from 
Mexico to British America and east of the Mississippi in Hlinois, Ohio, and several 
localities in eastern New York. 
