264 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ond glume and sterile lemma slightly shorter than the fruit at maturity; fruit 1 mm. 
long, elliptic, acute. 
Autumnal form radiate-spreading, late in the season bearing a few branches with 
somewhat reduced blades and small exserted panicles; winter rosette appearing early, 
the numerous, rather firm blades bluish 
green, about the size of those of the 
vernal culms. 
DISTRIBUTION. 
Moist sandy ground, northern Georgia 
and Alabama; apparently rare. 
GeEorGIA: Thomson, Bartlett 1461. 
ALABAMA: ‘‘Sandy soil along a 
creek, Sand Mt., June 5, 1900,”’ 
Harbison 2415; ‘‘Bank along 
roadside above Bryants Creek, Fig. 290.—Distribution of P. concinnius. 
south of Pisgah, Oct. 14, 1907,”’ 
Chase 4475; ‘‘In moist spot in woods, south of Pisgah, Oct. 14, 1907,’’ Chase 
4476; ‘‘Culms widely spreading, crevices of mossy rocks, north bank of Bryants 
Creek, south of Pisgah, Oct. 14, 1907,’’ Chase 4483. 
The last-mentioned specimen, Chase 4483, was collected at the type locality of the 
species, as indicated by Mr. Harbison in a letter. 
157. Panicum ensifolium Baldw. 
Panicum ensifolium Baldw.; Ell. Bot. 8. C. & Ga. 1: 126. 1816. ‘‘Grows in 
damp soils, * * * Georgia. Dr. Baldwin.’’ The type, in the Elliott Her- 
barium, isa slender plant 33 cm. high, with a tuft of four acuminate basal leaves, the 
blades 2.5 to 3.5 em. long, four culm leaves, the upper minutely puberulent through- 
out on the under surface, the lower toward the tip only, and a long-exserted panicle, 
with puberulent spikelets 1.5 mm. long. The accompanying label reads: ‘‘ Panicum 
ensifolium Bald. Hab: in humidis Georg: Dr. Baldwin.’”’ The basal blades of the 
type specimen and of a second specimen from ‘‘Baldw. Georg.’’ in the herbarium of 
the Philadelphia Academy are firm and sharp-pointed, though to a much less degree 
than in P. tenue and P. albomarginatum. 
Panicum nitidum ensifolium Vasey, U. 8. Dept. Agr. Div. Bot. Bull. 8: 29. 1889. 
Based on Panicum ensifolium Baldw., though the description applies to P. vernale. 
Panicum brittoni[i] Nash, Bull. Torrey Club 24: 194. 1897. ‘‘In moist sand in 
the ‘pine barrens’ at Forked River, N. J. Collected by Dr. Britton during an excur- 
sion of the Torrey Botanical Club to the region May 29-June 2, 1896.’’ The type, in 
Nash’s herbarium, consists of a tuft of slender, simple, vernal culms 10 to 19 cm. 
high, the blades glabrous or minutely puberulent on the under surface, the minutely 
pubescent spikelets 1.3 to 1.4 mm. long. 
Panicum cuthbertit Ashe, Journ. Elisha Mitchell Soc. 15:48. 1898. ‘‘South Caro- 
lina: Cuthbert; St. Helena Island.’’ This specimen could not be found in Ashe’s her- 
barium, but a piece of the type bearing the above data, sent by Mr. Ashe, is in the 
National Herbarium. It consists of a single vernal culm lacking the base, with two 
nodes, the blades broken off, but the sheaths present, the panicle short-exserted, the 
immature, pubescent spikelets 1.4 mm. long. Ashe states that ‘‘it is separated from 
P. ensifolium by the strict habit and large basal leaves of the latter,’’ but P. ensifoliwm 
as understood by Ashe is P. albomarginatum, as shown by his description@ and by his 
giving P. albomarginatum Nash as a synonym of P. ensifolium. 
@ Journ. Elisha Mitchell Soc. 15: 46. 1898. 
