HITCHCOCK AND CHASE—GRASSES OF THE WEST INDIES. 3809 
9. Paspalum denticulatum Trin. Gram. Pan. 111. 1826. 
Paspalum lividum Trin.; Scheele, Linnaea 26: 383, 1854. 
A tufted glabrous perennial; culms compressed, ascending from a decumbent 
base; blades flat, lax; racemes 3 to 5, subflexuous, approximate on the very 
slender axis, the rachis rather broad, the glabrous spikelets commonly lurid 
purplish, the glume and sterile lemma very thin. 
Along ditches and in wet ground, southern United States to South America 
and in Cuba (vicinity of Habana). Originally described from South America; 
P. lividum described from Mexico. 
10. Paspalum notatum Fltigge, Monogr. Pasp. 106. 1810. 
Paspalum taphrophyllum Steud. Syn. Pl. Glum. 1: 19. 1854. 
Culms tufted, ascending from a short hard rhizome, forming tough mats, the 
leaves crowded at base, the blades flat, 5 to 8 mm. wide, often elongate; 
racemes 2, approximate, diverging, usually arcuate; spikelets solitary, ovate, 
2.5 to 3 mm. long, the glume and sterile lemma papery, shining. 
Mexico and the West Indies to South America; in the West Indies common 
on open slopes and pastures from sea level to 1,000 meters altitude. The 
spikelets are variable in size, sometimes 3.5 mm, long. Originally described 
from St. Thomas; P. taphrophyllum described from Martinique. 
Cuba, Jamaica, Haiti, Porto Rico, Antigua, Guadeloupe, Martinique, and 
Grenada. bad 
11. Paspalum minus Fourn. Mex. Pl. 2: 6. 1886. 
Closely related to P. notatum, perhaps not specifically distinct; spikelets less 
than 2.5 mm. long, less shining; racemes more widely diverging, lower leaves 
often sparsely ciliate. 
Open ground, southern Mexico and West Indies to Uruguay. Originally 
described from Mexico, 
Cuba (Province of Pinar del Rfo and Isle of Pines), Jamaica (Bull Head 
Mountain), and Porto Rico (Trujillo Alto). 
12. Paspalum pumilum Nees, Agrost. Bras, 52, 1829. 
Resembling P. notatum, densely tufted, leafy at base, forming mats, the few 
slender culms ascending; sheaths and commonly the blades pubescent; racemes 
2, approximate, arcuately divergent, the dull oval spikelets about 1.8 mm. 
long. 
Moist savannas, Leeward Islands to Uruguay. Originally described from 
Brazil. 
Dominica and Trinidad (Piarco Savanna). 
13. Paspalum serpentinum Hochst. ; Steud. Syn. Pl. Glum. 1: 22. 1854. 
Densely tufted, with gray-villous foliage and slender erect culms 50 to 60 
em. tall, the long erect stiff blades drying involute; racemes a slightly divergent 
pair, the spikelets solitary, nearly orbicular, about 2.5 mm. long, golden brown, 
transversely marked with dark lines. 
Wet, sandy savannas, Trinidad and Dutch Guiana. Originally described 
from the latter place and known only from the type collection until found in 
Trinidad (Piarco Savanna, Hitchcock 10337). 
14. Paspalum plicatulum Michx, Fl. Bor. Amer. 1: 45, 1803. 
Paspalum undulatum Poir. in Lam. Encycl. 5: 29, 1804. 
Paspalum antillense Husn. Enum, Glum. 13. 1871. 
A tufted suberect perennial, 0.5 to 1 meter tall, with compressed simple 
culms, linear blades 5 to 10 mm. wide, sometimes sparsely pilose, and few to 
several arcuate-spreading racemes, 4 to 8 cm. long, the spikelets in pairs, drab- 
