206 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
ones like those in the type of P. leucothriz. The New Jersey specimens, Chase 3536, 
3556, and 3578, as also Hitchcock 1163 and 1398, though small plants with small 
panicles, are as little pubescent as is the type of P. parvispiculum or even less so. 
DISTRIBUTION. 
Low pine lands, New Jersey to Florida and Mississippi; also in Cuba. 
New Jersey: Atsion, Chase 3536, 3556; Forked River, Chase 3578. 
NortH Caroiina: Wilmington, 
Hitchcock 377. 
SoutH Carona: Orangeburg, 
Hitchcock 14, 376, 1372, 1398. 
Georets: Darien Junction, Small 
in 1895; Alapaha, Curtiss 6817 
in part. 
Fiorina: Jacksonville, Combs 6, 
Kearney 146; Washington 
County, Combs 672, 673; Chip- 
ley, Combs 551, 572, 617; Eus- 
tis, Hitchcock 800, 805, Nash Fig. 210.—Distribution of P. leucothriz. 
334, 467, 1338, 2075; Seminole, 
Tracy 7193 in part; Warrenton, Tracy 8410. 
Mississippi: Ocean Springs, Tracy 43. 
Louisiana: St. Tammany Parish, Cocks 286; Lake Charles, Hitchcock 1163. 
CupBa: Herradura, Hitchcock 554; without locality, Wright 3460 in part. 
V 119. Panicum longiligulatum Nash. 
Panicum longiligulatum Nash, Bull. Torrey Club 26: 574. 1899. ‘‘Collected by 
Dr. Geo. Vasey, at Apalachicola, Florida, in 1892.’’ The type, in Nash’s herbarium, 
consists of two vernal culms with three autumnal culms of the preceding year attached. 
Elliott® described this species under P. ‘‘nitidum? La Marck” as shown by the 
specimen so labeled in the Elliott Herbarium. 
DESCRIPTION. 
Vernal culms usually stout, 30 to 70 cm. high, erect, or ascending at base, glabrous; 
sheaths glabrous, usually much shorter than the internodes; ligules 2 to 3 mm. long; 
blades rather thick and firm, 4 to 8 cm. long, 4 to 8 mm. wide, glabrous on the upper 
surface, puberulent beneath, eradually narrowed to the sharp point, the lower ascend- 
ing, the upper spreading or often reflexed; panicles ovoid, 3 to 8 cm. long, two-thirds 
to three-fourths as wide, rather densely flowered, the slender 
branches usually stiffly ascending, short spikelet-bearing 
branchlets in the axils; spikelets 1.1 to 1.2 mm. long, 0.7 mm. 
wide, elliptic, pubescent; first glume one-fourth as tong as the 
spikelet; second glume slightly shorter than the fruit and 
sterile lemma; fruit 1 mm. long, 0.7 mm. wide, elliptic. 
Autumnal culms more or less reclining, the branches 
spreading, usually somewhat recurved, with crowded 
branchlets and spreading, subinvolute, reduced blades about 
equaling the reduced panicles of few long-pediceled spikelets; winter rosette 
prominent, blades glabrous. : 
Smaller, more slender specimens of this species resemble less pubescent specimens 
of P. leucothriz; these may be distinguished from that species by the glabrous culms 
and sheaths and slightly smaller spikelets with fruit exposed at the summit. 
Fig. 211.—P. longiligulat- 
um. Krom type speci- 
men. 
a Panicum longiligulatum and P. lindheimert were also distributed under this number. 
6b Bot. S. C. & Ga. 1: 128. 1816. 
