. No. 8. 
STIPA PENNATA Linn. var. Neo Mexicana Thurb. 
Plant perennial with strong coarse roots. 
Culms erect, densely tufted, not branching, hollow. smooth, 1 to 3 feet tall. 
Leaves of radical shoots numerous, with round, close, smooth sheaths, and 
narrow Closely involute blades; 10 to 12 inches long; of culm 3 to 4, sheaths smooth 
usually exceedi ; lig 
2 
ng internodes; blades like those of radical shoots but shorter 
ules membranaceous, rounded, and ciliate above, less than } line long. 
njlorescence a narrow racemose panicle 4 to 5 inches long; branches almost. 
appressed, the lower 2 to 3 inches long, each bearing 1 to 3 pedicellate spikelets. 
_ Sptkelets 1-flowered; first and second glumes nearly equal, lanceolate, long; — 
awn-pointed, herbaceous, 5 to 7-nerved, 14 to 14 inches long; floral glume terete, — 
coriaceous, yeliow, clothed throughout with close appressed pubescence, 5 to 7 lines 
long, contracted at the apex, terminating in a twisted, bent awn, feathered above, 
4 to 6 inches long; palet narrowly terete, hard, smooth, 5 to 6 lines long. © 
Grain narrow, reddish, 2 to 3 lines long. 
PuaTE VIII; a, spikelet dissected, about natural size. 
Texas, New Mexico, and Arizona. yee 
