196 NORTH AMERICAN FLORA [VorumE 17 
98. Paspalum vaginatum Sw. Prodr. 21. 1788. 
Digitaria foliosa Lag. Gen. Sp. Pl. 4. 1816. 
Paspalum tristachyum Le Conte, Jour. de Phys. 91: 285. 1820. 
Digitaria tristachya Schultes, in R. & S. Syst. Veg. Mant. 2: 261. 1824. 
Paspalum folioswum Kunth, Rév. Gram. 25. 1829. 
Paspalum inflatum A. Rich. in Sagra, Hist. Cuba 11: 298. 1850. 
Paspalum distichum vaginatum Sw.; Griseb. Fl. Brit. W. Ind. 541. 1864. 
Paspalum reimarioides Chapm. Fl. 8. U.S. ed. 2. 665. 1883, 
A perennial with long stout branched rootstocks, flat or involute leaf-blades, and 
glabrous spikelets. Stems 2-6 dm. tall; leaf-sheaths compressed, keeled, usually crowded 
and overlapping, at least at the base and on the innovations, glabrous; blades 1.5 
dm. long or Jess, 2-4 mm. wide, folded or involute when dry, glabrous, or sparingly hairy 
above at the very base; racemes terminal, usually in pairs at the apex of the stem, rarely 
more or single, erect or ascending, 3-7 cm. long, the rachis about 1 mm. wide; spikelets singly 
disposed, ovate-lanceolate, acute, 3-4 mm. long, the first scale wanting, or rarely present, the 
second and third scales thin, usually more or less wrinkled when dry, the second scale usually 
4-nerved by the suppression of the midnerve, the lateral nerves approximate at the margin, 
the third scale 5-nerved, the lateral nerves rather near together, the fruiting scale sometimes 
with a few hairs at the apex. 
TYPE LOCALITY: Jamaica. 
DISTRIBUTION: Florida to Mexico; Bermuda; West Indies; also in tropical South America. 
ILLUSTRATIONS: Rep. Comm. Agr. 1888: Bot. £1.21, f. 2; Trin. Ie. pd. 120 
99. Paspalum lineare Trin. Gram. Pan. 99. 1826. 
Stems tufted, up to 8 dm. tall, glabrous, simple, the nodes barbed; leaf-sheaths at the base 
of the stem very firm and thick, pubescent, or becoming glabrous, the upper sheaths glabrous 
or hirsute; blades up to 3 dm. long, folded, 1-2 mm. wide, glabrous or hirsute, strongly striate; 
racemes in pairs, conjugate, or sometimes separated by a short interval, sometimes stalked 
at the base, 3-6 cm. long, the rachis 0.5-1 mm. wide; spikelets singly disposed, 3.5-4.5 mm. 
long, about 1.8 mm. lwide, oblong-elliptic, glabrous, the first scale wanting, the second and 
third scales 5—7-nerved, the fruiting scale yellowish-green, elliptic, roughened with longitudinal 
rows of papillae. 
TYPE LOCALITY : Brazil. 
DISTRIBUTION : Cuba; Costa Rica ; also in Brazil. 
ILLUSTRATION: Trin. Ic. JZ. 111. 
100. Paspalum fasciculatum Willd.; Fliigge, Gram. 
Monog. 69. 1810. 
Stems stout, up to 1 m. tall or more, branched, glabrous; leaf-sheaths glabrous or ciliate; 
blades up to 6 dm. long and 2.5 cm. wide, glabrous; racemes numerous, rather crowded in a 
panicle, erect or ascending, up to 1 dm. long, the rachis 0.75-1.5 mm. wide; spikelets singly 
disposed, 3.5-5 mm. long, about 1.5 mm. wide, elliptic, acute, the first scale wanting, the 
second and third scales thin, ciliate, acute, usually 5-nerved, the third scale with the lateral 
nerves approximate, the fruiting scale a little shorter than the empty scales, elliptic, acute, 
yellowish. 
TYPE LOCALITY: Brazil. ; 
DISTRIBUTION: Costa Rica and Panama ; also in tropical South America. 
101. Paspalum erianthum Nees; Trin. Gram. Pan. 121. 1826. 
Stems tufted, up to 1 m. tall or more, glabrous, simple, the nodes barbed; leaf-sheaths gla- 
brous, or the basal ones pubescent, the lower firm and thick; blades up to 2 dm. long, 8-14 mm. 
wide, glabrous or hirsute flat; racemes 4-8, 2-7 cm. long, erect or ascending, the rachis 0.7—1 
mm. wide; spikelets 3.5-4 mm. long, 1.3-1.5 mm. wide, elliptic, the first scale wanting, the 
second and third scales, especially the second scale, pubescent with very long white hairs, the 
second scale 3-5-nerved, the third 3-nerved, the fruiting scale yellowish-green, elliptic, acute, 
minutely roughened, shining. 
TYPE LOCALITY: Brazil. ; 
DISTRIBUTION : Oaxaca to Panama ; also in tropical South America. 
ILLUSTRATION: Trin. Ic. pl. £35. 
