328 LAMSON-SCRIBNER: NOTES ON MUHLENBERGIA 
Muhlenbergia curtifolia Scribn. sp. nov. 
A slender wiry perennial, 1-2 dm. high, fasciculately branched 
at the base from creeping rootstocks, with short rigid leaves, 
linear panicles and short-awned spikelets 3-3.5 mm. long; culms 
pubescent below the nodes; leaves 7-10 on each culm, rather 
crowded near the base, the upper more distant; sheaths, excepting 
the upper ones, longer than the internodes, pubescent, especially 
toward the base; ligule less than 1 mm. long, ciliate on the edge; 
blades 1-2.5 cm. long, 2 mm. wide or less, pungent at the acute apex, 
scabropubescent on both sides; panicles 4-8 cm. long with erect 
appressed branches 1-3 cm. long or less, the main axis triangular 
or compressed, scabropubescent; spikelets on short, slender, 
pubescent pedicels; glumes lanceolate acute, subequal, a little 
shorter than the florets, scabrous at the tip and along the keel 
near the apex; lemmas broadly lanceolate, villous from just above 
the middle to the base, scabrous near the apex, gradually tapering 
into a slender scabrous awn I-3 mm. long; palea as long as the 
glume and similarly hairy. 
Type, Marcus E. Jones 6047], 1894, collected between Kanab 
and Carmel, Utah, alt. 6,000 ft. 
Muhlenbergia curtifolia Griffithsii Scribn. subsp. nov. 
More slender throughout and wholly glabrous, with the nar- 
rower leaves spreading or deflexed and the linear panicles loosely 
few-flowered. 
Type, David Griffiths 5837, 1903, collected in Du Chelly 
Canyon, Arizona. 
U. S. DEPARTMENT OF AGRICULTURE, 
WASHINGTON, D. C. 
