192 NORTH AMERICAN FLORA [VoLUME 17 
A glabrous or hirsute, sometimes glaucous, tall perennial with long blades and glabrous 
spikelets. Stems up to 2m. tall, smooth and glabrous, simple; leaf-sheaths glabrous or hirsute 
with long ascending hairs which arise from papillae; blades erect or nearly so, the larger ones 
3-7 dm. long, 5-15 mm. wide, linear, acuminate, flat, rather firm, glabrous or hirsute with 
long hairs; racemes 2-6, erect or nearly so, the lower ones commonly 8-15 cm. long, the rachis 
about 1.5 mm. wide, sometimes bearing scattered long hairs; spikelets singly disposed or 
in pairs, 3.5-4.5 mm. long, 2.5-3.5 mm. wide, oval, the first scale wanting, the second and 
third scales 3-nerved, the fruiting scale yellowish. 
TYPE LOCALITY: Florida. 
DISTRIBUTION: Delaware to southern Kansas, and south to Florida and Texas. 
ILLUSTRATIONS: Bull. U. S. Dep. Agr. Agrost. 7: 7.30, Bull. Tenn. Exp. Sta. 7: f. 20; Britt. 
& Brown, Ill. Fi. f 235; Beal, Grasses N. Am. 2: f 22. 
84. Paspalum giganteum Baldw.; Vasey, Bull. Torrey 
Club 13: 166. 1886. 
A tall glabrous tufted perennial, with long flat broad leaf-blades, long spreading racemes, 
and glabrous spikelets. Stems exceeding 1 m. in height; leaf-sheaths rather loosely embracing 
the stem and commonly overlapping; blades erect or ascending, the lower- ones 3-5 dm. long 
and 1.5 to more than 2 em. wide, linear, acuminate, flat, glabrous, or with a few hairs on the 
upper surface near the very base, rarely sparingly ciliate with short hairs; racemes commonly 3, 
sometimes 2 or 4, finally widely spreading, 1-2 dm. long, the rachis often flexuous and about 
1.5 mm. wide; spikelets disposed in pairs, rarely single, 3-3.5 mm. long and 2.25—-2.75 mm. 
wide, oval, the first scale wanting, the second and third scales 3-nerved, the fruiting scale 
yellowish at maturity. 
TYPE LOCALITY : Not indicated. 
DISTRIBUTION: Florida. 
ILLUSTRATION: Bull. U. S. Dep. Agr. Agrost. 17: f. 333. 
85. Paspalum longicilium Nash, Bull. N. Y. Bot. 
Gard. 1: 435. 1900. 
A tufted stout perennial with erect leaf-blades, spreading racemes, and glabrous spikelets. 
Stems 6-12 dm. tall, erect, clothed with the overlapping leaf-sheaths, the lower strongly 
hirsute with long hairs, the upper more sparingly so and ciliate on the margins; blades erect, 
the lower 3-5 dm. long, and about 1.5 cm. wide, acuminate at the apex, narrowed toward the 
base, smooth and glabrous on both surfaces, ciliate on the margins with hairs 3-4 mm. long; 
racemes 3 or 4, about 1.5 dm. long, the rachis about two thirds as wide as the spikelets; spike- 
lets singly disposed, rarely in pairs at the end of the racemes, 3.25-3.5 mm. long and about 
2.5 mm. wide, oval, the first scale wanting, the second and third scales 5-nerved, the lateral 
nerves approximate at the fold, the fruiting scale yellowish-white. 
TYPE LOCALITY: Eustis, Lake County, Florida. 
DISTRIBUTION : Florida. 
86. Paspalum monostachyum Vasey; Chapm. F1. S. U. S. 
ed. 2. 665. 1883. 
Paspalum rectum longispicatum Vasey, Bot. Gaz.9: 54. 1884. 
Paspalum solitarium Nash, in Small, Fl. SE. U.S. 77. 1903. 
A tall perennial with long and stout scaly rootstocks, the scales glabrous, stout stolons, 
erect rigid stems, and glabrous spikelets. Stems single, rigid, 6-12 dm. tall, sometimes shorter; 
leaf-sheaths glabrous, or sometimes pubescent on the margin; blades elongate, the larger 
ones often 3-6 dm. long, long-acuminate, rigid, involute, at least when dry, glabrous; racemes 
single, or rarely in 2’s, 1-2 dm. long, the rachis rounded on the back, less than 1 mm. wide; 
spikelets crowded, 3 mm. long and about 1.5 mm. wide, in pairs on hispid pedicels, elliptic, the 
first scale wanting, the second and third scales 3-nerved, the fruiting scale yellowish, smooth. 
TYPE LOCALITY: Southern Florida, 
DISTRIBUTION: Southern Florida and Texas. 
ILLUSTRATION: Bull. U. S. Dep. Agr. Agrost. 17: f. 335. 
