MANUAL OF THE GRASSES OF THE UNITED STATES 



375 



and low open ground, Quebec and Maine to Montana, south to 

 North Carolina, Indiana, Kansas, New Mexico, and Arizona (fig. 

 777). MUHLENBERGIA FOLiosA var. SETiGLtiMis (S. Wats.) Scribn. 

 Lemmas awned, the awn 4 to 10 mm long. 01 About the same 

 range as the species ; also Wash- 

 ington to northern California 

 and Nevada. 



30. Muhlenbergia schreberi 

 Gmel. NIMBLE WILL. (Fig. 

 778, A.) Culms slender, 

 branching, spreading and de- 

 cumbent at base, usually root- 

 ing at the lower nodes, but not 



FIGURE 771. Distribution of 

 Muhlenbergia mexicana. 



FIGURE 77Q.~Muhlenbergia mexicana. Plant, X 1; 

 glumes and floret, X 10. (V. H. Chase 1166, 111.) 



forming definite creeping rhi- 

 zomes, the flowering branches 

 ascending, 10 to 30 cm long; 

 blades flat, mostly less than 5 

 cm long, and 2 to 4 mm wide; 

 panicles terminal and axillary, 

 slender, loosely flowered, lax, 

 nodding, 5 to 15 cm long; 

 glumes minute, the first often 

 obsolete, the second rounded, 

 0.1 to 0.2 mm long; lemma narrow, somewhat pubescent around the 

 base, the body about 2 mm long, the slender awn 2 to 5 mm long. 

 91 Damp shady places, New Hampshire to Wisconsin and 

 eastern Nebraska, south to Florida and Texas; eastern Mexico (fig. 



779). In spring and early summer the culms are short 



and erect with spreading blades, the plants being very dif- 



ferent in appearance from the flower- 



ing phase of fall. MUHLENBERGIA 



SCHREBERI var. PALUSTRIS (Scribn.) 



Scribn. Glumes developed, as much 



as 1 mm long. 01 Washington, 



D.C. 



31. Muhlenbergia curtisetosa 



(Scribn.) Bush. (Fig. 778, B.) A 

 ^tie-known form, differing from M. 



FIGURE 773. Distribution of 

 Muhlenbergia glabriflora. 



schreberi in having stouter culms, coarser panicles, the 

 CType * glumes evident, rarely as much as 2 mm long, the lemma 



2.5 to 3 mm long, the awn 1 to 2 mm long. 91 

 Illinois (Clinton), Missouri (Eagle Rock). It may be a hybrid. 



32. Muhlenbergia andina (Nutt.) Hitc he. FOXTAIL MUHLY. (Fig. 

 780.) Perennial, with numerous scaly rhizomes; culms erect or some- 



?o a6n * 



