188 NORTH AMERICAN FLORA [VoLuME 17 
68. Paspalum elatum Rich.; Doell, in Mart. Fl. Bras. 2”: 78. 1877. 
Stems up to 1 m. tall and more, simple, glabrous; leaf-sheaths glabrous, the lower ones 
crowded and reticulate; blades up to 3 dm. long, 5-7 mm. wide, glabrous, with a ring of long hairs 
just back of the ligule; racemes 5—7, erect or nearly so, 4~6 cm. long, the rachis about 1.5 mm. 
wide; spikelets 2.5 mm. long and 1.2 mm. wide, glabrous, the first scale wanting, the second 
3-nerved, the third 5-nerved, the fruiting scale deep-brown, smooth. 
TYPE LOCALITY: French Guiana. 
DISTRIBUTION: Cuba; also in French Guiana. 
69. Paspalum scrobiculatum L. Mant. 29. 1767. 
A tufted smooth and glabrous perennial, with flat leaf-blades and glabrous spikelets. 
Stems 2-6 dm. tall, sometimes branched; leaf-sheaths compressed; blades 2 dm. long or less, 
2-8 mm. wide, linear, erect, or nearly so, flat, of medium texture; racemes 2-5, 2-7 cm. long, 
the rachis 1.5-2 mm. wide; spikelets singly disposed, 2~2.5 mm. long and 1.5~1.75 mm. wide, 
oval, glabrous, the first scale wanting, the second and third scales 5-nerved, the lateral nerves 
approximate and distant from the midnerve, the fruiting scale deep seal-brown at maturity. 
TYPE LOCALITY: East Indies. 
DISTRIBUTION ; Florida ; tropics of the Old World. 
ILLUSTRATIONS: Bull. U. S. Dep. Agr. Agrost. 17: _f. 332; Trin. Ic. pl. 143. 
70. Paspalum convexum Fligge, Gram. Monog. 175. 1810. 
Paspalum hemicrypium Wright ; Sauv. Anal. Acad. Ci. Habana 8; 204. 1871. 
Paspalum pauperculum Fourn. Mex. Pl. Gram. 10. 1881. 
Paspalum pauperculum altius Fourn. Mex. Pl. Gram. 10. 1881. 
Paspalum inops Vasey, Contr. U. S. Nat. Herb. 1: 281. 1893. 
Paspalum inops major Vasey ; Beal, Grasses N. Am. 2: 89. 1896. 
Stems up to 6 dm. tall, glabrous; leaf-sheaths glabrous or papillose-hirsute; blades up to 2 
dm. long and 1 cm. wide, papillose-hirsute, rarely glabrous; racemes 2 or 3, rarely 1, ascending 
or erect, 2-4 em. long; spikelets citcular, strongly convex, 2-3 mm. in diameter, glabrous, the 
first scale wanting, the second and third scales 5-nerved, the fruiting scale very convex, smooth 
and shining, deep-brown. 
TYPE LOCALITY: Jorullo, Michoacan. 
DISTRIBUTION : Mexico to Costa Rica ; Cuba. 
71. Paspalum plicatulum Michx. Fl. Bor. Am. 1:45. 1803. 
Paspalum undulatum Poir. in Lam. Encyc. 5: 29. 1804. 
Paspalum plicatum Pers. Syn. Pl. 1: 86. 1805. 
Paspalum gracile Le Conte, Jour. de Phys. 91: 284. 1820. Not P. gracile Rudge, 1805. 
Paspalum lepion Schultes, in R. & S. Syst. Veg. Mant. 2:173. 1824. 
Paspalum tenue Kunth, Rév. Gram. 26. 1829. 
Paspalum antillense Husnot, Bull. Soc. Linn. Norm. If. 5: 260. 1870. 
A glabrous tufted perennial, with erect usually folded leaf-blades, and somewhat pubescent 
spikelets. Stems flattened, 4-8 dm. tall; leaf-sheaths compressed, smooth and glabrous; 
blades 2 dm. long or less, 2-5 mm. wide, usually folded, at least when dry, more or less long- 
hairy above, erect, rather stiff; racemes 3-7, rarely fewer, spreading or ascending, 3-7 cm. long, 
the rachis about 1 mm. wide; spikelets in pairs, 2.5-3 mm. long, rarely smaller, and 1.3-1.8 
mm. wide, obovate to elliptic, the first scale wanting, the second 5-nerved, with approximate 
lateral nerves, usually pubescent with appressed hairs, the third scale glabrous, 3-nerved, the 
margins usually more or less transversely plicate, the fruiting scale seal-brown at maturity. 
TYPE LOCALITY: Georgia. 
DisTRIBUTION: Georgia and Florida to Texas and Mexico, and in tropical America. 
ILLUSTRATIONS: Bull. U. S. Dep. Agr. Agrost. 7: f. 28; Trin. Ic. pl. 140. 
72. Paspalum Boscianum Fliigge, Gram. Monog. 170. 1810. 
Paspalum virgatum Walt. Fl. Car. 75. 1788. Not P. virgatum 1. 1759. 
Paspalum brunneum Bosc; Fliigge, Gram. Monog. 171, as synonym. 1810. 
Paspalum purpurascens Ell. Bot. S. C. & Ga. 1: 108. 1816. 
? Paspalum compressum Raf, Fl. Ludov. 15. 1817. 
Paspalum confertum Le Conte, Jour. de Phys. 91: 285. 1820. 
