ELISHA MITCHELL SCIENTIFIC SOCIETY 86 
long, 1 mm. wide, abruptly acute, first scale 1-nerved, glab- 
rous, one-fourth to one-third the length of the strongly 5—-7- 
nerved thin glabrous second and third. 
Collected at Petit Bois Island, Mississippi, May 8, 1898, by 
S. M. Tracy. 
PANICUM WILMINGYTONENSE nl. sp. Perennial growing in 
small tufts. Culms very slender, erect, 3-4 dm. high, genic- 
ulate, pubescent, at least below, with short ascending hairs 
or above glabrate, at first simple, at length much branched: 
sheaths close-fitting, pubescent with short ascending hairs, 
one-half the length of the internodes or less: ligule a row of 
short white hairs about 1 mm. long. Stem leaves 3-4, short- 
er than the internodes, 3-6 cm. long, 3-5 mm. wide, broadest 
near the base, very long taper-pointed, slightly rounded at 
the base, glabrate or pubescent beneath with short ascending 
hairs or with a few long hairs on the margin near the base, 
thick and firm, the margins rough, white and thickened, up- 
per leaves reduced in size: basal leaves equaling the lower 
stem leaves,. Paniele ovate, 3-4 cm. wide, 5-7 cm. long, 
branches few, at least the lower ascending: spikelets broadly 
obovate, quite 2 mm. long, nearly glabrous, the 1-nerved first 
scale, about one-third the length of the glabrate 7-nerved 
second and third. 
Panicum Wilmingtonense is closely related to P. Atlanticum 
but has smaller more acute spikelets, a more slender culm, 
scattier pubescence and: smaller leaves. The type material 
collected in May, 1899 on the sand hills near Wilmington, N. 
C., is preserved in my herbarium. 
PANICUM SUBVILLOSUM n. sp. A densely tufted perennial, 
1.5-3 dm. high. Culms very slender, glabrous above, below 
pubescent with ascending hairs. Stem leaves 3-5, erect or 
ascending, lanceolate or narrower, 3-4 cm. long, 3-5 mm. 
wide, long taper-pointed, rounded at the base, nearly glab- 
rous beneath, above pubescent with long white ascending 
hairs, margins rough, ciliate, at least near the base with long 
white hairs, upper stem leaves and basal leaves reduced in 
size: ligule pubescent with white hairs 2 mm. long: sheaths 
