Part 2, 1912] POACEAE 187 
mm. wide, elliptic, obtuse, the first scale wanting, the second and third scales 3-nerved, the 
second pubescent with long weak hairs, the third glabrous, the fruiting scale greenish. 
TYPE LOCALITY : Santurce, Porto Rico. 
DISTRIBUTION : Southern Florida ; Bahamas to Cuba and Grenada. 
64. Paspalum glabrum Poir. in Lam. Encyc. 5: 30. 1804. 
Paspalum milioideum Desv.; Poir. in Lam. Encyc. Suppl. 4: 315. 1816. 
? Paspalum cubense Spreng. Neue Entdeck. 3: 12. 1822. 
Paspalum miliare Spreng. Syst.1: 247. 1825. 
? Paspalum sinuosum Desv. Opusc. 57. 1831. 
Paspalum Bakeri Hack. Inf. An. Estac. Centr. Agron. Cuba 1: 410. 1906. 
A tufted glabrous perennial. Stems tufted, up to 1 m. tall, sometimes with a leafless 
flower-bearing branch from the upper axil; leaves strongly striate; sheaths with a tuft of hairs 
at the apex; blades up to 4 dm. long, 5-7 mm. wide, flat, or more often involute; racemes 2-4, 
5-10 cm. long, erect or ascending, the rachis about 0.7 mm. wide ; spikelets in pairs, 1.8—2.2 
mim. long, 1~1.2 mm. wide, elliptic, glabrous, the first scale wanting, the second 5-nerved, the 
third usually 3-nerved, the fruiting scale yellowish, smooth. 
TYPE LOCALITY: Porto Rico. 
DISTRIBUTION: Bahamas to Cuba, Hispaniola, and Porto Rico. 
65. Paspalum mandiocanum Trin. Gram. Pan. 113. 1826. 
Stems tufted, simple, up to 8 dm. tall, glabrous; sheaths glabrous, or sometimes ciliate; 
blades up to 2 dm. long and 2.5 em. wide, flat, elliptic, narrowed at both ends, ciliate, the 
surfaces glabrous or sparingly hirsute; racemes 3-7, 3-7 cm. long, ascending, the rachis less 
than 1 mm. wide; spikelets in pairs, 2.25-2.5 mm. long, 1-1.25 mm. wide, elliptic, obtuse, ap- 
pressed-pubescent, the first scale wanting, the second and third scales 3-nerved, the fruiting 
scale yellowish. 
TYPE LOCALITY: Brazil. 
DISTRIBUTION : Southern Mexico to Panama; also in Brazil. 
ILLUSTRATION: Trin. Ic. pl. 154. 
66. Paspalum Simpsoni Nash, Bull. Torrey Club 24: 39. 1897. 
Paspalum gracillimum Nash, in Small, Fl. SE. U. S. 73. 1903. 
A tufted perennial, with flat leaf-blades and glandular-pubescent spikelets. Stems erect, 
slender, up to I m. tall, sometimes with leafless flower-bearing branches from the upper axil; 
leaf-sheaths loosely embracing the stem, those at the base short and appressed-villous; blades 
2 dm. long or less, 2-15 mm. wide, erect or ascending, flat, lanceolate or linear-lanceolate, 
sometimes rounded or slightly cordate at the base, acuminate at the apex, somewhat glau- 
cous above, glabrous on both surfaces, often ciliate; racemes 3-15, spreading or ascending, 2-8 
cm. long, the rachis less than 1 mm. wide; spikelets in pairs, obovate, 1.2-1.5 mm. long and 
0.8-1 mm. wide, the first scale wanting, the second and third scales 3-nerved, the second scale 
pubescent with short spreading glandular-tipped hairs, the third glabrous or pubescent, the 
fruiting scale yellowish, smooth. 
TYPE LOCALITY: No Name Key, Florida. . 
DISTRIBUTION: Southern Florida and Bahamas to Cuba, Grand Cayman, and Jamaica. 
67. Paspalum lentiginosum J. Presl, in Presl, Rel. 
* Haenk. 1: 218. 1830. 
Stems tufted, erect, up to 1 m. tall, glabrous, simple; sheaths glabrous or softly pubescent; 
blades up to 2.5 dm. long and 2 cm. wide, glabrous or pubescent on the surface, ciliate, linear 
to linear-lanceolate; racemes 5-12, spreading or ascending, 2.5—7 cm. long, straight or curved, 
the rachis about 1 mm. wide; spikelets 1.1-1.3 mm. long, 0.8-1 mm. wide, broadly obovate 
to oval, densely pubescent with spreading glandular-tipped hairs, the first scale wanting, the 
second 3-nerved, the third usually 2-nerved by the suppression of the midnerve, the fruiting 
scale yellowish, nearly orbicular. 
TYPE LOCALITY: Mexico. 
DISTRIBUTION : Mexico.. 
ILLUSTRATION: Field Columb. Mus. Publ. Bot. 3: 28, 7 
