MANUAL OF THE GRASSES OF THE UNITED STATES 



701 



lary, 7 to 15 cm. long, the branches 

 ascending or appressed; spikelets 2.8 

 to 3 mm. long, obliquely set on the 

 pedicels. 01 — Sandy or swampj^ 

 woods, central Florida. 



157. Panicum agrostoides Spreng. 

 (Fig. 1066.) In dense clumps from a 

 short crown, with numerous short- 

 leaved innovations at base; culms 50 

 to 100 cm. tall; blades erect, folded 

 at base, flat above, 20 to 50 cm. long, 

 5 to 12 mm. wide; panicles terminal 

 and axillary, 10 to 30 cm. long, half 

 to two-thirds as wide, sometimes 

 more diffuse, the densely flowered 

 branchlets mostly on the under side 

 of the branches, the pedicels usually 

 bearing at the summit one to several 

 delicate hairs; spikelets about 2 mm. 

 long. % — Wet meadows and 



Figure 1066. — Panicum agrostoides. Panicle, X 1 ; 

 two views of spikelet, and floret, X 10. (Fisher 30, 

 N. J.) 



shores, Maine to Kansas, south to 

 Florida and Texas; Vancouver Island; 

 California; British Honduras. 



Panicum agrostoides var. ra- 

 m6sius (Mohr) Fernald. Panicles 

 more open and loosely flowered than 

 in the species; spikelets more or less 

 secund on the branchlets, slender and 



Figure 1067. — Panicum condensum. Two views of 

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



more pointed, resembling P. stipita- 

 tum Nash. % — Virginia to Florida 

 and Texas. 



158. Panicum condensum Nash. 

 (Fig. 1067.) Resembling P. agros- 

 toides; culms on the average taller; 

 blades often sparsely pilose on the 

 upper side at the folded base; pan- 

 icles 10 to 25 cm. long, rarely more 

 than 5 cm. wide, the long branches 

 erect, naked at base, with appressed 

 branchlets bearing crowded spikelets, 

 the pedicels not pilose; spikelets 2.2 

 to 2.5 mm. long. % — Borders of 

 streams and ponds and in wet places, 

 Coastal Plain, Pennsylvania to Flor- 

 ida, Arkansas, and Texas; West In- 

 dies. 



Figure 1068. — Panicum stipitatum. Two views of 

 spikelet, and floret, X 10. (Commons 305, Del.) 



159. Panicum stipitatum Nash. 

 (Fig. 1068.) Resembling P. agros- 

 toides; often purple-tinged through- 

 out, especially the panicles; sheaths 

 much overlapping, the blades usually 

 equaling or exceeding the terminal 

 panicle; panicles usually several to a 

 culm, 10 to 20 cm. long, narrow, 

 densely flowered, the numerous stiff 

 branches ascending, with numerous 

 divaricate branchlets, mostly on the 

 lower side; spikelets 2.5 to 2.8 mm. 

 long, often curved at the tip. 01 — 



