292 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
New York: Oneida Lake, Gray; Lake George, Vasey in 1882; Schenectady, 
Wibbe in 1885; Danby, Coville in 1885; Cairo, Nash in 1893; Tripoli, Burnham 
in 1897. 
Ontario: Belleville, Macown in 1865; Galt, Herriot in 1898 and 1901; Algonquin 
Park, Macoun 22025. 
PENNSYLVANIA: Tannersville, 
Brown in 1901; without local- 
ity, Me Minn. 
MicuicaANn: Keweenaw, Farwell 
764; Alma, Davis in 1893. 
Wisconsin: Rainbow Rapids, Che- 
ney 1346; Mason, Cheney 4786; 
Webster, Cheney 3426. 
MinNEsotTa: Ramsey County, Ost- 
land 1 and 2 in 1884; Lake 
Kilpatrick, Ballard in 1898; 
St. Cloud, Campbell 66. 
ManitosBa: Lake Winnepeg Valley, Bourgeau in 1857 (Gray Herb.). 
SASKATCHAWAN: Bourgeau in 1858 (Gray Herb.). 
Fig. 328,—Distribution of P. zanthophysum. 
Pedicellata.—Clums slender, more or less hirsute; ligules of short hairs; blades not 
over 6 mm. wide, ciliate; spikelets 3.5 to 4 mm, long, attenuate at base, 
papillose, 7 to 9-nerved. Autumnal form freely branching, the branches 
appearing before the maturity of the primary panicle; no distinct winter 
rosette formed. 
This group of two species appears to be intermediate between the subgenus 
Dichanthelium and true Panicum. The plants bear a general resemblance 
to Oligosanthia but in the absence of a winter rosette and in the branch- 
ing habit, especially of P. nodatum, they show a departure from 
Dichanthelium. 
Culms erect or leaning; blades thin, 5 to 9 em. long, narrowed 
toward the base.........22-----2-.200 00020 e eee eee ee eee 176. P. pedicellatum. 
Culms decumbent; blades thick, not over 5 cm. long, not nar- 
rowed toward the base................----------+--0-- 177. P. nodatum. 
176. Panicum pedicellatum Vasey. 
Panicum pedicellatum Vasey, U.S. Dept. Agr. Div. Bot. Bull. 8: 28. 1889. ‘‘Texas, 
J. Reverchon.’’ The type specimen, in the National Herbarium, Reverchon Texas 
. Plants 1620, bearing the data ‘‘ Rocky 
woods, Kimble Co. June,”’’ consists of two 
branching plants. 
DESCRIPTION. 
Vernal form in tufts of few to several 
erect or ascending culms from a short, 
knotted rootstock; culms slender, 20 to 
50 cm. high, usually ascending-hirsute 
at least below, a few spreading hairs on 
the nodes; sheaths papillose, sparingly 
hirsute, ciliate on the margin; ligules 
dense, about 1 mm. long; blades ascend- 
ing or spreading, 5 to 9 cm. long, 3 to 6 
mm. wide, the margin toward the narrowed base sparsely ciliate with long hairs, 
both surfaces glabrous or sometimes minutely hispid; panicles 3 to 6 cm. long, 
Fia. 329.—P. pedicellatum. From type specimen. 
