316 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Central and eastern United States and Province of Habana, Cuba. Originally 
described from Carolina. 
40. Paspalum debile Michx. Fl. Bor. Amer. 1: 44, 1803. 
Perennial, with a cluster of short leafy shoots at base, the blades flat, rather 
thin, pilose on both surfaces, conspicuously ciliate; culms slender, ascending; 
racemes 4 to 6 cm, long, usually 2 on the terminal culm, solitary on the axillary 
peduncles, the pale, minutely pubescent, broadly ovate spikelets 1.6 to 1.8 mm. 
long. 
Open savannas and slopes, southeastern United States and in Cuba (Herra- 
dura, Hitchcock 471), the Cuba specimens less strongly pubescent than typical. 
Originally described from the Carolinas and Georgia. 
A specimen collected in Inagua, Bahamas, in 1890, by A. 8. Hitchcock is 
allied to the preceding, but at present we are unable to refer it to any known 
species. It seems to be nearest to P. psammophilum Nash, of the Middle At- 
lantic States, but the spikelets are narrower than in that species and the plant 
much smaller. 
41. Paspalum decumbens Swartz, Prodr. Veg. Ind. Occ. 22. 1788.2 
Paspalum pedunculatum Desv.; Poir. in Lam. Encycl. Suppl. 4: 315. 1816. 
Panicum decumbens Roem. & Schult. Syst. Veg. 2: 429. 1817. 
Paspalum vaginiflorum Steud. Syn. Pl. Glum. 1: 19. 1854. 
Dimorphostachys pedunculata Fourn. Mex. Pl. 2: 15. 1886. 
A freely branching decumbent perennial with slender compressed culms, 
velvety foliage, the flat blades 5 to 10 em. long, 5 to 8 mm. wide, and solitary 
arcuate racemes usually 2 to 3 em. long, borne on very slender peduncles, these 
commonly several from the upper sheaths; spikelets obovate, 1.5 mm. long, a 
small first glume present, the second glume about half the length of the fruit. 
Shaded banks and wooded slopes, Central America and the West Indies and 
northern South America. Paspalum decumbens was described from Jamaica; 
P. pedunculatum and P, vaginiflorum from French Guiana. 
Cuba (Province of Pinar del Rio and Isle of Pines), Haiti, Jamaica, Porto 
Rico, and Trinidad. 
42. Paspalum nutans Lam. Tabl. Encycl. 1: 175. 1791. 
Paspalum lloydii Nash, N. Amer. Fl. 17: 178. 1912. 
Resembling the preceding, the culms longer, the foliage not velvety, the 
racemes sometimes 2 or 3, the spikelets 1.8 mm. long, the first glume wanting, 
the second nearly as long as the fruit. 
Shady banks and a weed in fields, Costa Rica and the Lesser Antilles to 
South America. Originally deseribed from Central America; P. lloydii de- 
scribed from Dominica, Lloyd 590 being the type. 
Guadeloupe, Dominica, Grenada, and Trinidad. 
43. Paspalum ciliiferum (Nash) Hitche. Contr. U. 8. Nat. Herb. 12: 201, 1909. 
Dimorphostachys ciliifera Nash in Small, Fl. Southeast. U. S. 78, 1903. 
Tufted, the slender culms spreading or ascending; blades sparsely pubescent, 
rather thin, flat, usually 10 to 15 cm. long, 8 to 10 mm. wide; racemes 1 or 2, 
slightly curved, 5 to 10 cm. long, usually with a tuft of long white hairs at the 
base; spikelets about 2.8 mm. long, narrowly obovate, appressed-pubescent, the 
first glume truncate on the primary, acuminate on the secondary, spikelet. 
Thickets and shaded banks, Florida and Cuba. Originally described from 
Florida. 
44. Paspalum paniculatum L, Syst. Nat. ed. 10. 2: 855. 1759. 
Paspalum hemisphericum Poir. in Lam. Encycl, 5: 31, 1804. 
* Paspalum decumbens Rottb. 1778 is a nomen nudum. 
