MANUAL OF THE GRASSES OF THE UNITED STATES 



621 



lower sheaths villous; blades spreading or ascending, narrowed to an 

 involute point, glabrous or the lower sparsely pilose, the middle culm 

 blades 4 to 6 cm long, 2 to 5 mm wide; panicle 3 to 7 cm long, the 

 flexuous branches spreading at maturity; spikelets 1.9 to 2 mm long, 

 obovate. Autumnal phase bushy-branching, the culms 10 to 30 cm 

 long, spreading, forming dense cushions, the blades involute, sharp- 

 pointed, usually arcuate, mostly 1 to 3 cm long. % — Sandy pine 

 woods, Coastal Plain, New Jersey; Virginia to northern Florida, 

 Oklahoma, and Texas; West Indies"' (fig. 1292). 



15. Panicum chrysopsidifolium Nash. (Fig. 1293.) Vernal culms 

 ascending or spreading, 30 to 45 cm tall, grayish-villous, especially 



Figure 1285.— Distribution of 

 Panicum xalapense. 



Figure 1286.— Panicum ciliatum. 

 Two views of spikelet, and floret, 

 X 10. (Type.) 



Figure 1287.— Distribution of 

 Panicum ciliatum. 



below, the nodes bearded; sheaths villous; blades 5 to 10 cm long, 

 3 to 5 mm wide, villous on both surfaces; panicle 4 to 6 cm long; 

 spikelets 2 mm long, obovate, villous. Autumnal phase spreading, 

 forming mats; blades flat, becoming papery with age. % — Sandy 

 pine woods, Coastal Plain, Florida to Arkansas and Texas; West 

 Indies (fig. 1294). 



16. Panicum consanguineum Kunth. (Fig. 1295.) Vernal culms 

 ascending or spreading, 20 to 50 cm tall, densely felty-villous below, 

 the nodes bearded; sheaths villous, especially the lower; blades 7 to 

 11 cm long, 5 to 8 mm wide, villous, or nearly glabrous above; pan 



Figure 1288.— Pa nicu m 

 polycaulon. Two views of 

 spikelet, and floret, X 10. 

 (Type.) 



Figure 1289.— P anicum 

 strigosum. Two views of 

 spikelet, and floret, X 10. 

 (Type.) 



Figure 1290.— Distribution of 

 Panicum strigosum. 



icle 4 to 8 cm long, the lower branches narrowly ascending; spikelets 

 2.6 to 2.8 mm long, obovate, papillose-villous. Autumnal phase 

 spreading or decumbent, the numerous branches somewhat flabel- 

 lately fascicled, the blades 3 to 4 cm long, 2 to 3 mm wide, flat, thin, 

 papery. % — Sandy pine woods, Coastal Plain, Virginia to northern 

 Florida, west to Arkansas and Texas (fig. 1296). 



17. Panicum angustifolium Ell. (Fig. 1297.) Vernal culms erect 

 or nearly so, 30 to 50 cm tall, the lowermost internodes gray crisp- 

 villous; lower sheaths appressed-villous, the upper glabrous; blades 

 stiffly ascending, 8 to 15 cm long, 4 to 8 mm wide, long-acuminate; 

 panicle long-exserted, 4 to 10 cm long, loosely flowered, the branches 

 widely spreading at anthesis, the lower often reflexed; spikelets 2.5 

 to 2.8 mm long, elliptic-obovate, papillose-villous. Autumnal phase 



