MANUAL OF THE GRASSES OF THE UNITED STATES 



669 



4 cm. long; spikelets 1.5 to 1.6 mm. 

 long, puberulent. Autumnal culms 

 branching from all but the uppermost 

 node, the reduced blades involute- 

 pointed. % (P. pauciciliatum 

 Ashe.) — Sandy woods of the Coastal 

 Plain, mostly in moist places, North 

 Carolina to Florida and Texas; Cuba; 

 Puerto Rico. 



Figure 996. — Panicum porturicense. Two views of 

 spikelet, and floret, X 10. (Ashe, N. C.) 



88. Panicum lancearium Trim 

 (Fig. 997.) Vernal culms 20 to 50 



Figure 997. — Panicum lancearium. Plant, X 1; two 

 views of spikelet, and floret, X 10. (Chase 4545, 

 S. C.) 



Figure 998. — Panicum patulum. Two views of spike- 

 let, and floret, X 10. (Type.) 



cm. tall, minutely grayish crisp- 

 puberulent; sheaths puberulent; 

 blades firm, 2 to 6 cm. long, 3 to 7 

 mm. wide, usually glabrous on the 

 upper surface, puberulent or nearly 

 glabrous beneath; panicle 3 to 6 cm. 

 Jong; spikelets 2 to 2.1 mm. long, gla- 

 brous or usually puberulent. Autum- 

 nal culms geniculate-spreading, bran- 

 ching from the middle nodes. % 

 — Low sandy woods, Coastal Plain, 

 southeastern Virginia to Florida and 

 Texas; Cuba; Hispaniola; British 

 Honduras. 



89. Panicum patulum (Scribn. and 

 Merr.) Hitchc. (Fig. 998.) Vernal 

 phase grayish olive green; culms gen- 

 iculate-decumbent, as much as 50 

 cm. long, internodes and sheaths 

 densely velvety-pub erulent; blades 

 rather lax, spreading, 4 to 8 cm. 

 long, 4 to 8 mm. wide, velvety- 

 puberulent beneath, pubescent above, 

 ciliate at least half their length; 

 spikelets as in P. lancearium but 

 densely pubescent. Autumnal culms 

 more freely branching than in P. 

 lancearium, often forming large mats. 

 % — Low moist woods, Coastal 

 Plain, southeastern Virginia to Flor- 

 ida and Louisiana; British Honduras 

 and Hispaniola. 



90. Panicum webbferianum Nash. 

 (Fig. 999.) Vernal phase usually pur- 

 plish; culms rather stout, erect or 

 ascending, 20 to 50 cm. tall, minutely 

 puberulent to glabrous; leaves some- 

 what crowded below; sheaths gla- 

 brous or nearly so; blades firm, as- 

 cending, often incurved or spoon- 



