MANUAL OF THE GRASSES OF THE UNITED STATES 



385 



50 cm. tall; blades mostly flat and 

 less than 5 cm. long, about 1 mm. 

 wide; panicle narrow, contracted, 

 interrupted, 3 to 8 cm. long; spike- 

 lets, excluding awns, 2.5 to 3 mm. 

 long, the glumes a little shorter, 

 tapering to slender awn tips; lemma 

 and palea loosely villous below, the 

 lemma tapering into a delicate awn 

 1 to 2 cm. long. % — Shaded 

 ledges and grassy slopes, western 

 Texas to southern Arizona and central 

 Mexico. 



22. Muhlenbergia paucifloraBuckl. 

 New Mexican muhly. (Fig. 541.) 

 Perennial; culms loosely tufted, wiry, 

 erect, branching at the lower nodes, 

 30 to 60 cm. tall; blades 1 mm. wide 

 or less; panicle narrow, contracted, 

 interrupted, 5 to 12 cm. long, the 

 branches erect or ascending; spike- 



Figxjre 539. — Muhlenbergia glauca. 

 Plant, X 1; glumes and floret, X 

 10. (Nealley 726, Tex.) 



Figure 540. — Muhlenbergia poly- 

 caulis. Plant, X 1; glumes and 

 floret, X 10. (Type.) 



