dik JOURNAL, OF THE 
The type material was collected by the writer on the sand 
hills of New Hanover county, N. C., May 19, 1899. 
Panicum MISSISSIPPIENSE n. sp. A tufted perennial 3-4 
dm. high. Stems erect, glabrous or nearly so, often papil- 
late below, at first simple, at length branched especially from 
the lower nodes. Primary stem leaves 3-7 cm. long, 3-7 mm. 
wide, rounded at the sparingly ciliate base, otherwise glab- 
rous, rough on the margin: ligule a mere margin: sheaths 
much shorter than the internodes, papillate, glabrous except 
the edge which is finely ciliate with hairs 1-2 mm. long: 
basal leaves few and short, Panicle oblong, 3-5 cm. long, 
glabrous, on a peduncle 2-3 times its length, the mostly sin- 
gle branches short and horizontal: spikelets glabrous, nearly 
orbicular, 1.2 mm. long, 1 mm. wide, the nearly orbicular — 
first scale, one-third the length of the very thin faintly 
5-nerved, glabrous second and third: later panicles exserted 
on short peduncles. 
A very distinct species. Collected by me on the banks of 
the Mississippi river below New Orleans in October. I also 
refer here S. M. Tracy’s No. 6777, collected on Horne Island, 
Miss., in July 1899. 
PANICUM TAXODIORUM n. sp. Avery slender perennial, 4--7 
dm. high, at first simple and erect, at length spreading and 
loosely branched. Leaves very thin, glabrous, dark green, the 
edges very rough, 4--10 long, 3--5 mm. wide, narrowly lanceo- 
late, narrowed to the scarcely rounded base, long taper-point- 
ed: ligule none: sheaths glabrous except the finely ciliate 
margins, or with a few long hairs at the throat: basal leaves, 
in the specimen at hand very short, and few. Panicle 6--10 
cm. long, ovate, the branches few, slender, fascicled, ascend- 
ing: spikelets full 2 mm, long, elliptic or obovate, acute, 
olabrous, short-pedicled. 
This species is related to P. dichotomum but differs in the 
panicle having fewer, ascending branches, acuter spikelets, 
narrower leaves, and in having the secondary panicles ex- 
serted. 
Type: K. K. McKenzie’s No. 460. Hummocks in cypress 
swamps. Lake Charles, La., September 1890. 
