MANUAL OF THE GRASSES OF THE UNITED STATES 739 



inflorescence elongate, narrow, the 2 to 4 racemes 2 to 3 cm long, 

 partly included and shorter than the inflated tawny to bronze spathes; 

 rachis very slender, flexuous, long- villous ; sessile spikelet about 3 mm 

 long, the delicate straight awn 1 to 2 cm long; pedicel long- villous, its 

 spikelet obsolete or nearly so. % — Open ground, old fields, open 

 woods, sterile hills, and sandy soil, Massachusetts, New York, 

 Indiana, and Kansas, south to Florida and Texas; Mexico, Central 

 America, West Indies (fig. 1652). Andropogon virginicus var. 

 hirsutior (Hack.) Hitchc, Flowering branches more numerous 

 than in the species, the inflorescence often rather dense, resembling 

 that of A. glomeratus, but the spathes mostly larger and the peduncles 

 usually shorter. % — Moist meadows and old fields, Florida to 



Figure 1649. — Andropogon brachystachys, XI. 

 (Curtiss 3632, Fla.) 



Figure 16.50. — Andropogon 

 capillipes, X 1. (Curtiss 

 3638b, Fla.) 



Texas and Mexico . Intergrades with A. virginicus and appears to be in- 

 termediate between that and A. glomeratus. Andropogon virginicus 

 var. glaucopsis (Ell.) Hitchc. Resembling the species, but foliage, 

 especially the lower sheaths, very glaucous; inflorescence sometimes 

 as dense as in var. hirsutior, the spathes dull purple. % (A. glaucop- 

 sis Nash). — Moist sandy soil and low pine barrens, North Carolina to 

 Florida and Mississippi. 



24. Andropogon glomeratus (Walt.) B. S. P. Bushy beardgrass. 

 (Fig. 1653.) Culms erect, 50 to 150 cm tall, compressed, with broad 

 keeled overlapping lower sheaths, the flat tufts often forming dense, 

 usually glaucous clumps, the culms from freely to bushy branching 

 toward the summit; sheaths occasionally villous; blades elongate, 3 

 to 8 mm wide; inflorescence dense, feathery, from flabellate to oblong, 

 the paired racemes 1 to 3 cm long, about equaling the slightly dilated 



