5. Paspalum Ciliatifolium Michx. Ciliate-Leaved Paspalum

Fig. 292

Paspalum ciliatifolium Michx. Fl. Bor. Am. I: 44. 1803.

A tufted branching perennial, with flat leaf-blades, which are glabrous excepting on the ciliate margins, and glabrous spikelets. Culms 1 1/4°-2 1/2° tall; sheaths ciliate on the margin; blades 10' long or less, 3"-8" wide, linear to lanceolate; racemes single, or sometimes in pairs, 2.'- 4 1/2' long, the rachis 1/2" wide or less; spikelets in pairs, about 1" long and less than 1" wide, oval to broadly obovate, the two outer scales 3-nerved, or the second one rarely 2-nerved by the suppression of the midnerve.

In rocky or sandy soil, Maryland to Florida and Mississippi. June-Aug.

6. Paspalum Psammophilum Nash. Prostrate Paspalum

Fig. 293

Paspalum prostratum Nash, in Britton, Man. 74. 1901.

Not Scribn. & Merr. 1901. Paspalum psammophilum Nash; Hitchc. Rhodora 8:

205. 1906.

A tufted branching softly pubescent perennial with prostrate culms forming dense mats, flat leaf-blades, and densely pubescent spikelets. Culms 1 1/2°-3° long; sheaths softly and densely pubescent with short hairs; blades erect or nearly so, of medium texture, softly and densely pubescent on both surfaces, ciliate on the margins, lanceolate, up to 4' long, 2 1/2"-4" wide; racemes on the main culm 2, rarely more or only 1, 2'-3' long, the rachis less than 1/2 wide; spikelets in pairs, 1" long and a little less than 1" wide, oval, the first scale 3-nerved, the second usually 2-nerved by the suppression of the midnerve.

In dry sandy soil, southern New York to Delaware.

7. Paspalum Bushii Nash. Bush's Paspalum

Fig. 294

Paspalum Bushii Nash, in Britton, Man. 74. 1901.

A tufted branching perennial, with flat ciliate leaf-blades, and pubescent spikelets. Culms erect or ascending, 1°-3° tall; sheaths, at least the lower ones, softly pubescent, ciliate on the margin; blades erect or ascending, rather firm' in texture, softly and densely pubescent on both surfaces with short hairs and with a few long rather stiff hairs intermixed, lanceolate, 2's' long, 2"-8" wide; racemes usually in pairs on the main culm, 2 1/2-5' long, the rachis less than i" wide; spikelets in pairs, about 1" long, orbicular or nearly so, the empty scales densely pubescent, 3-nerved, or the second sometimes 2-nerved by the suppression of the midnerve.

In dry soil, Missouri and Nebraska to Texas.

8. Paspalum Pubescens Muhl. Pubescent Paspalum

Fig. 295

Paspalum pubescens Muhl.; Willd. Enum. Hort. Berol. 89. 1809.

A tufted branching perennial, with flat pubescent leaf-blades, and glabrous spikelets. Culms l 1/4°-2 1/2° tall, densely pubescent below the racemes; sheaths glabrous, or sometimes pubescent on the margins or toward the apex, the basal ones sometimes pubescent all over; blades of medium texture, the pubescence long, spreading and rather stiff, linear, 10' long or less, 1 1/2" - 3" wide; racemes usually 1, rarely 2 on the main culm, 2 1/2'-5' long; spikelets in pairs, about 1" long and 3/4" wide, broadly obovate, the 2 outer scales 3-nerved, or the second 2-nerved by the suppression of the midnerve.

In fields and dry woods, New York and New Jersey to Texas. Aug. and Sept.