184 NORTH AMERICAN FLORA {Volume 17 
51. Paspalum glaberrimum Nash, in Small, Fl. SE. U.S. 76. 1903. 
Paspalum amplum Nash, in Small, Fl. SE. U.S. 77. 1903. 
A glabrous or sparingly pubescent stout perennial, with long flat leaf-blades and glabrous 
flat spikelets. Stems 1-1.5 m. tall; leaf-sheaths flattened, the outer basal ones hirsute below, 
the remainder glabrous, or sometimes hirsute at the apex; blades 3-4 dm. long, 5-8 mm. 
wide, erect or nearly so, flat, glabrous on the lower surface, the upper surface pubescent; 
racemes 3-8, erect or ascending, the lower ones commonly 7-15 cm. long, sometimes shorter; 
spikelets orbicular to oval, 3-3.5 mm. long, 2.5-3 mm. wide, flat on both sides, the first 
scale wanting, the second and third scales yellowish-green, 3-nerved, the fruiting scale white, 
fiat, strongly roughened with conspicuous papillae. 
TYPE LocaALITy: Southern peninsular Florida. 
DISTRIBUTION: Georgia and Florida to Mississippi. 
52. Paspalum Curtisianum Steud. Syn. Gram. 26. 1854. 
Paspalum praecox Curtisianum Vasey, Bull. Torrey Club 13: 165. 1886. 
Paspalum Kearneyi Nash, in Small, Fl. SE. U.S. 77. 1903. 
A strongly pubescent perennial with long leaf-blades and glabrous flat spikelets. Stems 
8-15 dm. tall; leaf-sheaths strongly hirsute, compressed; blades up to 5 dm. long and often 1 
cm. wide, linear, erect, flat, strongly papillose-hirsute, especially above, with long hairs; 
racemes 5-10, rarely fewer, spreading or ascending, 3-10 cm. long; spikelets single or in 
pairs, circular, 2.5-3 mm. in diameter, the first scale wanting, the second and third scales 
3-nerved, the fruiting scale flat, striately roughened with conspicuous papillae. 
TYPE LOCALITY : Carolina. 
DISTRIBUTION: South Carolina to Florida and Mississippi. 
ILLUSTRATION: Bull. U. S. Dep. Agr. Agrost. 17: f 329. 
53. Paspalum tardum Nash, in Small, Fl. SE. U.S. 76. 1903. 
A pubescent perennial, with compressed leaf-sheaths and glabrous flat spikelets. Stems 
6-13 dm. tall; leaf-sheaths compressed, the lower and outer basal ones usually more or less 
pubescent with long hairs, and the others generally so at the apex; blades up to 3 dm. long 
and 1 cm. wide, erect or nearly so, flat, or folded when dry, hirsute on the upper surface below 
the middle, increasingly so toward the base where the hairs are very dense and long; racemes 
usually 3 or 4, sometimes only 2, rarely more numerous, commonly 3-6 cm. long, sometimes 
shorter; spikelets single or in pairs, orbicular or nearly so, 2.2-2.5 mm. in diameter, the first 
scale wanting, the second and third scales 3-nerved, the flowering scale flat, striately roughened 
with conspicuous papillae. 
TYPE LOCALITY : Florida. 
DISTRIBUTION : Florida to Texas. 
54. Paspalum lividum Trin.; Schlecht. Linnaea 26: 383. 1853. 
A glabrous perennial with flat leaf-blades and glabrous bright-green elliptic spikelets 
which are much compressed. Stems 6-10 dm. tall; leaf-sheaths compressed, keeled, smooth, 
glabrous, except on the margins; blades 3 dm. long or less, 3-5 mm. wide, more or less pubescent 
on the upper surface; racemes 3-7, erect or ascending, 2.5—5 cm. long, the rachis, which is often 
setiferous on the margins, about 1.5 mm. wide; spikelets in pairs, bright-green, often tinged 
with purple, about 2.5 mm. long and 1.5 mm. wide, elliptic, acute or acutish, the first scale 
wanting, the second and third scales 3-nerved, the fruiting scale yellowish-white and only 
slightly convex in cross-section. 
TYPE LOCALITY: Hacienda de La Laguna, near Jalapa, Vera Cruz. 
DISTRIBUTION : Louisiana to Mexico and Guatemala ; Cuba; also in tropical South America. 
ILLUSTRATION: Bull. U. S. Dep. Agr. Agrost. 17: f. 230. 
55. Paspalum Buckleyanum Vasey, Bull. Torrey 
Club 13: 167. 1886. 
A glabrous perennial with flat leaf-blades and pubescent compressed spikelets. Stems 
erect, 6-8 dm. tall; leaf-sheaths smooth and glabrous; blades 2 dm. long or less, 2~4 mm. wide, 
