170 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
wrinkling conspicuous in the lower blades; panicles 4 to 8 cm. long, one-half to two- 
thirds as wide, the lower branches usually narrowly ascending; spikelets 2.6 to 2.8 
mm, long, 1.6 to 1.8 mm, wide, obovate, blunt, turgid; first glume one-third the 
length of the spikelet or less; second glume and sterile lemma equal, scarcely cov- 
ering the fruit at maturity, densely papillose-villous, the bullate papillae: prominent; 
fruit 2 mm. long, 1.5 to 1.7 mm. wide, minutely puberulent at the apex. 
Autumnal form spreading or decumbent, the numerous branches somewhat flabel- 
lately fascicled, the blades mostly 3 to 4 cm. long, 2 to 3 mm. wide, flat, thin, and 
papery. 
The vernal form of this species may be distinguished from P. angustifolium by the 
greater amount of pubescence, the bearded nodes, and the ascending panicle-branches, 
and the autumnal form by the widely spreading habit and shorter blades. 
DISTRIBUTION. 
Sandy pine woods of the Coastal Plain from North Carolina to northern Florida and 
west to eastern Texas. 
Virainia: Virginia Beach, Hitchcock in 1905. 
NortH Carona: Wilmington, Hitchcock 1449, 1471; Wards Mill, Onslow 
County, Chase 3174; Wilsons Mills, Chase 3095; Roanoke Island, Chase 3230. 
Sourn Carolina: Orangeburg, 
Iitchcock 1373, 1382. 
Georata: Macon, Small in 1895; 
Darien Junction, Small in 
1895. 
Froripa: Baldwin, [Hitchcock 986, 
999; Washington County, 
Combs 570, 651; Marianna, 
Tracy 3633; Milton, Chase 4299; 
without locality, Rugel 142. 
ALABAMA: Gateswood, Tracy 8427. 
Mississirri: Vicinity of Biloxi, Fig. 161.—Distribution of P. consanguineum. 
Chase 4351, Hitchcock 1069, 
1070, 1083, Kearney 218 in part, 284 in part, Tracy 1884, 2873, 3661, 4614. 
ARKANSAS: Texarkana, Heller 4238. 
Lourstana: Lake Charles, Hitchcock 1139, 1155, Langlois in 1884. 
Texas: Beaumont, Reverchon 4156; Waller County, Thurow 23 in 1906. 
* 94, Panicum angustifolium Ell. 
? Panicum ramulosum Michx. Fl. Bor. Amer. 1: 50. 1803. ‘Hab. in sylvis Caro- 
linae.”” The type specimen, in the Michaux Herbarium, labeled ‘‘in pratis caespi- 
tosis Carolinae,”’ belongs to a species of the Angustifolia, apparently P. angustifolium, 
but on account of the fragmentary condition of the type, which is devoid of spikelets, 
and the insufficiency of Michaux’s description the identity of this specimen can not 
be determined with certainty. 
Panicum angustifolium Ell. Bot. 8. C. & Ga. 1: 129. 1816. No locality is cited. 
The type, in the Elliott Herbarium, consists of a single culm, lacking the base, bearing 
three leaves and a scarcely exserted, immature panicle; the culm is glabrous, the 
sheaths are sparingly pilose, densely ciliate on the margin toward the summit; blades 
18 cm. long, involute toward the apex, long ciliate on the margin for half to two- 
thirds their length, otherwise glabrous. The accompanying label reads: “Panicum 
angustifolium. Hab: in aridis. Flor. Ma.?” 
