Field Paspalum

Paspalum plenipilum Nash, in Britton, Man. 73. 1901
Paspalum laeve pilosum Scribn. Bull. Tenn. Exp. Sta. 7: 34. 1894. l^ot P. pilosum Lam. 1791. Paspalum praelongum Nash, in Small, Fl. SKU. S. 74. 1903.
A tufted pubescent perennial with flat leaf-blades and glabrous spikelets. Stems 5-10 dm. tall, simple; leaf-sheaths compressed, tuberculate-hirsute with long spreading hairs; blades 3 dm. long or less, 6-10 mm. wide, erect, flat, hirsute on both surfaces with long spreading hairs; racemes 2-4, spreading or ascending, 4^8 cm. long, the rachis about 1 mm. wide; spikelets singly disposed, oval, about 2.5 mm. long and 2 mm. broad, the first scale wanting, the second and third scales 5-nerved, the lateral nerves near the margin, approximate, the fruiting scale one half as thick as broad or nearly so.
Type locality: [Clifton, Passaic County,] New Jersey.
Distribution : New Jersey to Missouri, and south to Florida and Mississippi.

Paspalum circulare Nash, in Britton, Man. 73. 1901
A tufted perennial with flat leaf-blades and orbicular glabrous spikelets. Stems 5-10 dm. tall, simple; leaf -sheaths compressed, tuberculate-hirsute with spreading or ascending hairs; blades 3 dm. long or less, 5-8 mm. wide, erect, flat, more or less hirsute on both surfaces; racemes 2-4, erect or ascending, 6-10 cm. long, the rachis about 1 mm. wide; spikelets singly disposed, orbicular, about 3 mm. in diameter, the first scale wanting, the second and third scales thin and usually wrinkled when dry, 5-nerved, the lateral nerves near the margin and approximate but quite distinct, the fruiting scale with its thickness one fourth to one third of the diameter.
Type locality : Bergen County, New Jersey. Distribution : New York to Delaware, Missouri, and Texas.

Paspalum laeve Michx. Fl. Bor. Am. 1 : 44. 1803
Paspalum undulosum Le Conte, Jour, de Phys. 91 : 2(84. 1820.
Paspalum Jloridanum Le Conte, Jour, de Phys. 91 : 284. 1820. Not P.Jloridanum Michx. 1803.
Paspalum. angustifolium I^e Conte, Jour, de Phys. 91 : 285. 1820.
Paspalum Leconteanum Schultes, in R. & S. Syst. Veg. Mant. 2 : 168. 1824.
Paspalum punciulaium Bertol. Mem. Accad. Sci. Bologna 2 : 599. 1850.
? Paspalum altemans Steud. Syn. Gram. 26. 1854.
Paspalum laeve undulosum, Vasey, Bull. Torrey Club 13 : 165. 1886.
Paspalum, laeve angustifolium, Vasey, Bull. Torrey Club 13 : 165. 1886.
Paspalum, laeve brevifolium Vasey, Contr. U. S. Nat. Herb. 3 : 18. 1892.
Paspalum australe Nash, in Britton, Man. 1039. 1901.
A nearly glabrous perennial, with few racemes and glabrous spikelets. Stems 3-10 dm. tall, tufted; leaf-sheaths glabrous or hirsute on the margins, compressed; blades 2-6 dm. long. 5-8 mm. broad, fiat, glabrous, or the upper surface with a few hairs; racemes 2-6, 3-10 cm, long, the rachis less than 1 mm. wide; spikelets singly disposed, 2-3 mm. long and 1.8-2.5 mm. wide, oval, the first scale wanting, the second and third scales firm, 5-nerved, the lateral nerves approximate, the fruiting scale yellowish-green, at least half as thick as broad. 183
Type locality : Georgia.
Distribution : Maryland to Kansas, and south to Florida and Texas.

Paspalum longipilum Nash, Bull. N. Y. Bot
Gard. 1 : 435. 1900.
A somewhat tufted perennial with fiat leaf-blades and glabrous spikelets, the leaf-sheaths hirsute with long hairs. Stems 6-8 dm. tall, simple; leaf-sheaths much compressed, keeled, at least the lower ones densely papillose-hirsute with long spreading hairs; blades 2 dm. long or less, less than 1 cm. wide, linear, often folded, erect, rather firm, strongly pubescent on the upper surface with long spreading hairs, nearly glabrous beneath; racemes 2 or 3, ascending, 5-7 cm. long, the rachis flat, somewhat flexuous, about 1 mm. wide; spikelets singly disposed, oval, 2.5-3 mm. long and 2-2.5 mm. wide, the first scale wanting, the second and third scales 5-nerved, the lateral nerves approximate, the fruiting scale yellowish-white.
Type locality : Eustis, I,ake County, Florida. Distribution: Florida.