178 NORTH AMERICAN FLORA [VoLumeE 17. 
27. Paspalum pedunculatum Poir. in Lam. Encyc. 
Suppl. 4: 315. 1816. 
Paspalum decumbens Sw. Prodr. 22. 1788. Not P. decumbens Rottb. 1778. 
? Paspalum nutans Tam. Tab. Encye.1: 175. 1791. 
Panicum decumbens R. & S. Syst. Veg. 2: 429. 1817. 
Paspalum curvistachyum Raddi, Agrost. Bras. 26. 1823. 
Paspalum vaginifiorum Steud. Syn. Gram. 19. 1854. 
Stems up to 3 dm. tall or longer, branched and rooted at the lower nodes, with one or more 
leafless pubescent flower-bearing branches from the upper axil; leaf-sheaths ciliate, otherwise 
glabrous or pubescent; blades up to 7 cm. long, rarely longer, up to 12 mm. wide, lanceolate 
to ovate-lanceolate, acute, flat, ciliate, the surface usually pubescent, rarely glabrous; racemes 
straight or curved, single, 1.5-4 cm. long, the rachis flat, about 0.5 mm. wide, usually pubescent, 
at least below, rarely glabrous; spikelets in pairs, glabrous, 1.3-1.5 mm. long, 1-1.2 mm. wide, 
broadly obovate or oval, obtuse, often apiculate, the first scale orbicular, obtuse or acute, 
rarely exceeding one third of the spikelet, the second scale about half as long as the spikelet, 
orbicular, rounded at the apex, 3-nerved, the third scale as long as the spikelet, 3-nerved, or 
sometimes with an obscure additional lateral nerve, the fruiting scale about as long as the third 
scale or a little shorter, yellowish-green, broadly oval, obtuse, strongly roughened with 
longitudinal rows of papillae. 
TYPE LOCALITY: Dutch Guiana. 
DISTRIBUTION: Jamaica and Cuba to Porto Rico, and from Guatemala to Panama ; also in trop- 
ical South America. 
ILLUSTRATIONS: Trin. Ic. £/. 146; Kunth, Rév. Gram. £2. 16. 
28. Paspalum guatemalense Bartlett, Proc. Am. 
Acad. 43:49. 1907. 
? Dimorphostachys adoperiens Fourn Mex. Pl. Gram. 15. 1881. 
Stems up to 8 dm. long, glabrous, branched below, with’leafless fower-bearing branches 
from the uppermost axil; leaf-sheaths ciliate, papillose-hispid; blades up to 1.5 dm. long, 10-15 
mm. wide, lanceolate, sometimes cordate at the base, flat, glabrous, or sometimes ciliate; 
racemes 2 or 3, 3-6 cm. long, the rachis less than 1 mm. wide; spikelets in pairs, 2 mm. long, 
1.8 mm. wide, nearly orbicular, glabrous, the first scale small, orbicular, obtuse, or that 
of the lower spikelet of each pair sometimes larger, lanceolate or ovate, acute, the second scale 
a little shorter than the spikelet, 5-nerved, the third scale 5-nerved, the fruiting scale orbicular, 
strongly roughened with longitudinal rows of papillae. 
TYPE LOCALITY: Swamp at Gualan, Zacapa, Guatemala. 
DISTRIBUTION : Guatemala. 
29. Paspalum Lloydii Nash, sp. nov. 
Stems sometimes 1 m. long, usually shorter, finally branched and prostrate and rooted 
at the lower nodes, with a leafless pubescent flower-bearing branch from the upper axil; leaf- 
sheaths ciliate, otherwise glabrous; blades up to 1 dm. long, 5-15 mm. wide, lanceolate to 
elliptic, glabrous or pubescent, often ciliate; racemes single, or sometimes in 2’s—4’s, straight or 
curved, 3-5 em. long, the rachis about 0.5 mm. wide, glabrous; spikelets in pairs, glabrous, 1.8-2 
mmm. long, 1-1.2 mm. wide, elliptic, obtuse, the first scale wanting, the second scale shorter 
than the spikelet, 3-nerved, the third scale as long as the spikelet, 5-nerved, the fruiting scale 
yellowish-green, oval to obovate, strongly roughened with longitudinal rows of papillae. 
Type collected at Montpelier, Dominica, 1903, Francis E. Lloyd 590 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Dominica, Guadeloupe, St. Vincent, and Grenada; also in Colombia. 
30. Paspalum culiacanum Vasey, Contr. U. S. Nat. 
Herb. 1: 281. 1893. 
Stems tufted, branched, up to 8 dm. tall, erect, glabrous; leaf-sheaths glabrous, often ciliate 
on the margin; blades up to 2 dm. long and 1 cm. wide, linear-lanceolate, ascending, firm, 
smooth and glabrous, rough on the margins; racemes 2-5, 5-8 cm. long, spreading or ascending, 
the lower ones often stalked; spikelets more than 2 mm. long, oval to obovate, obtuse, glabrous, 
