110 



Fig. 104. MUHLENBERGIA PRINGLEI Scribii. Trans. N. Y. Acad. Sci. 14: 

 25. 1894. (3/. sylvaticaprinfjlri Scribn. Bui. Torr. Bot. Club. 9: 89. 1882. An 

 erect, densely csespitose, wiry perennial, with simple culms 3-5 dm. (12'-20') 

 high, involute-filiform leaves and .slender, contracted, often purplish panicles 

 6-10 cm. (2'-4'j long. Spikelets ia) nearly sessile, 3-4 mm. (li"-2") long: empty 

 glumes ih) acuminate-pointed, subequal, one-half to two-thirds as long as the 

 spikelet; flowering glume (c) 4 mm. (2") long; awn slender, 10-14 mm. (5"-7") 

 long.— Canyons, basins, and shaded ledges, mountains of New Mexico and 

 Arizona. (Mexico.) May to Ser)tember. 



