MANUAL OP THE GRASSES OF THE UNITED STATES 741 



spathes, the enclosed peduncle and ultimate branchlets long-villous, 

 the peduncle at least 5 mm long, often longer; rachis very slender, 

 flexuous, long-villous; sessile spikelet 3 to 4 mm long, the awn straight, 

 1 to 1.5 cm long; sterile spikelet reduced to a subulate glume or want- 

 ing, the pedicel slender, long-villous. % —Low moist ground, 

 marshes, and swamps, Massachusetts to Florida, west to Kentucky, 



Figure 1652.— Distribution of 

 Andropogon virginicus. 



Figure 1653.— Andropogon glomerulus, 

 X 1. (Hitchcock 437, Fla.) 



Figure 1654.— Distribution of 

 Andropogon glomeratus. 



Figure 1655. —Andropogon elliottii, 

 X 1. (Commons 115, Del.) 



southern California, and Nevada; West Indies, Yucatan, Central 

 America (fig. 1654). 



25. Andropogon elliottii Chapm. Elliott beardgrass. (Fig. 

 1655.) Culms tufted, erect, 30 to 80 cm tall, at first nearly simple, 

 later branching toward the summit; lower sheaths keeled, rather 

 narrow, commonly loosely pilose, those near the summit inflated and 

 spathelike, crowded, the very short internodes densely bearded; 

 blades flat, 3 to 4 mm wide; primary inflorescence of few to several 

 racemes, mostly in pairs, rarely 3's or 4's, on filiform, often strongly 

 flexuous peduncles, long-exserted from inconspicuous spathes, these 



