MANUAL OF THE GRASSES OF THE UNITED STATES 



pilose with ascending hairs; nodes in- 

 conspicuously bearded; sheaths pap- 

 illose-pilose; ligule 2 to 3 mm. long; 

 blades 4 to 6 cm. long, 4 to 8 mm. 

 wide, glabrous or with a few long 

 hairs toward the base on the upper 

 surface, very sparsely appressed- 

 pubescent beneath; panicle short- 

 exserted, 3 to 6 cm. long, the axis and 

 flexuous spreading branches pubes- 

 cent; spikelets 2.2 to 2.5 mm. long, 

 pilose. Autumnal phase unknown, 

 young branches appearing before ma- 

 turity of primary panicle. % — 

 Only known from an old field along 

 the Delaware River, about 1.5 miles 

 east of Raven Rock, Hunterdon 

 County, N. J. Insufficiently known, 

 may be an exceptional specimen of P. 

 pseudopubescens . 



661 



Figure 970. — Panicum pseudopubescens. Two views of 

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



Figure 969. — Panicum benneri. Two views of spike- 

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



61. Panicum pseudopubescens 



Nash. (Fig. 970.) Vernal phase sim- 

 ilar to that of P. villosissimum; ligule 

 2 to 3 mm. long; blades with the pu- 

 bescence on the upper surface short, 

 sparse or wanting down the center, 

 occasionally glabrous; spikelets 2.2 to 

 2.4 mm. long, pilose. Autumnal culms 

 stiffly spreading, sometimes prostrate, 

 sparingly branching from the middle 

 and lower nodes. % — Sandy open 

 woods, Connecticut to Wisconsin and 

 Iowa south to Florida, Kansas, and 

 Mississippi; Mexico. 



62. Panicum ovale Ell. (Fig. 971.) 

 Vernal culms 20 to 50 cm. tall, erect 

 or ascending, rather stout, long-pilose 

 below with ascending or appressed 

 hairs, often nearly glabrous above, 

 the nodes bearded ; sheaths ascending- 

 pilose; ligule 2 to 3 mm. long, rather 

 sparse; blades 5 to 10 mm. wide, the 



Figure 971. — Panicum ovale. Two views of spikelet, 

 and floret, X 10. (Type.) 



upper surface nearly glabrous except 

 for long hairs near the base and mar- 

 gins, the lower surface appressed- 

 pubescent; panicle 5 to 9 cm. long; 

 spikelets, 2.7 to 2.9 mm. long. Autum- 

 nal phase spreading-decumbent, the 

 stiff culms rather loosely branching 

 from the middle and upper nodes. 

 % — Dry sandy woods, Coastal 

 Plain, North Carolina to Florida; In- 

 diana (near Lake Michigan), Illinois 

 (Mason County), and Texas (Waller 

 County) . 



63. Panicum scopariofdes Ashe. 

 (Fig. 972.) Vernal phase light green; 

 culms 30 to 50 cm. tall, erect or as- 

 cending, pilose with ascending hairs 

 or nearly glabrous; sheaths pilose to 

 nearly glabrous; ligule 2 to 3 mm. 

 long; blades 6 to 10 mm. wide, 

 sparsely hispid on the upper surface, 

 appressed-pubescent beneath; panicle 

 4 to 7 cm. long; spikelets 2.2 to 

 2.3 mm. long, pubescent. Autumnal 



