347 
It has also been secured on Staten Island, New York, by Dr. N. 
L. Britton; and also in southeastern Virginia, east of the Dismal 
Swamp and south of Great Bridge, by Dr. John K. Small. 
This well-marked grass is related in habit and general appear- 
ance to P. pubescens Lam. and P. villosissimum Nash, differing 
from the former in the larger spikelets and the longer hairs cloth- 
ing the sheaths and leaves, and from the latter in the smaller and 
differently shaped spikelets and in the smaller panicles. 
PANICUM ELONGATUM Pursh. 
The longer and acuminate spikelets serve well to distinguish 
this from P. agrostoides Muhl. Another equally important and so 
far constant character is the distinct stalk to the scale of the per- 
fect flower. In P. agvostoides the fourth scale is sessile, or nearly 
so, and much broader in proportion to its length. 
Dr. Geo. Vasey (Contr. U. S. Nat. Herb. 3: 35, 1892) noted 
this feature in what he considered an eastern form of P. agros- 
‘ foides Spreng., and which is presumably the plant now known as 
P. elongatum. 
~PANICUM PARVISPICULUM nN. sp. 
Culms 3-5 dm. tall, caespitose, erect, or later decumbent and 
creeping at the base, glabrous, or toward the base appressed-hir- 
sute, nodes blackish brown, usually more or less pubescent. 
Sheaths shorter than the internodes, the lower ones usually ap- 
pressed-hirsute, the upper puberulent or glabrous and ciliate on 
the margins; ligule a copious ring of hairs 3-4 mm. long; leaves 
erect or ascending, rigid, thickish, linear-lanceolate, rough on the 
margins, glabrous above, pubescent beneath, usually with short 
hairs, acuminate at the apex, rounded at the base, the primary 
leaves 3-9 cm. long, 4-8 mm. wide, the later leaves 5-6 cm. long 
or less; primary panicle broadly ovate, 8-10 cm. long, its branches 
spreading or somewhat ascending, much divided from the base, 
the larger 4-6 cm. long and frequently pilose at the base; spike- 
lets numerous, 1.5 mm. long, on divergent pedicels 1-3 times as 
long as the spikelets, the first three scales membranous, green, 
densely pubescent with short spreading hairs, the first scale one- 
quarter to one-third as long as the spikelet, orbicular, acute, I- 
nerved, the second and third scales about equal in length, broadly 
oval and obtuse when spread out, 7-nerved, the third scale enclos- 
ing'a hyaline palet less than one-half its length, the fourth scale 
chartaceous, elliptic, acutish, white, enclosing a palet of eqal length 
and similar texture. 
