421 
already been used. It is necessary, therefore, to give this well- 
known plant a name, and the above is proposed in honor of Prof. 
Thos. C. Porter. 
Panicum ScRIBNERIANUM nom. n. 
Panicum Scopartum S. Wats. in A. Gray, Man. Ed. 6, 632. 
1890. Not Lam. 
Panicum scoparium var. minor Scribn. Bull Univ. Tenn. 7: 48. 
1894. Not P. capillare var minor Muhl. 1817. 
This plant is certainly not the P. scoparium of Lamarck. 
That is found only in the southern mountains and is a tall large- 
leaved grass with a few-flowered panicle. There seems to be no 
available name published for this plant, and so the above is pro- 
posed, in honor of Prof. F. L. Scribner, who was the first to indi- 
Cate its difference from P. scoparium Lam. 
“Panicum minus (Muhl.). 
Panicum diffusum Pursh, Fl. Am. Sept, 1 : 68. 1814. 
Panicum capillare var. minus Muhl. Gram. 124. 1817. 
Panicum capillare var. sylvaticum Torr. Fl. U.S. 149. 1824. 
Panicum Philadelphicum Bernh; Nees. Fl. Bras. 198. 1829. 
This plant is readily distinguished from P. capillare, of which 
it has been considered a variety by its more slender habit, and 
smaller spikelets in pairs at the extremities of the ultimate divi- 
Sions of the smaller and less branched panicle. 
PANICUM BOREALE n.sp. Culmsat first erect and simple, 1°—2° 
tall, later sometimes decumbent and somewhat branched, smooth 
and glabrous. Sheaths shorter than the internodes, smooth and 
glabrous, ciliate; ligule short, ciliate; leaves 3’—5’ long, yy'-¥4! 
Wide, erect, truncate or rounded at the sparsely ciliate base, acumi- 
hate; panicle 2/—4’ in length, ovate, branches 1/~2’ long, spread- 
Ing or ascending; spikelets 1’ long, about equalling the pedicels, 
ellipsoid, pubescent; first scale ovate; obtusish, about one-third the 
length of the spikelet; second and third ovate, 7-nerved, pubes- 
cent, equalling the fourth; fourth oval, chartaceous, acute, slightly 
exceeding 3/” in length. 
Moist soil, Newfoundland and Ontario to New York, Vermont 
and Minnesota. This plant was first noted by the writer in 1893 
in the Catskill Mts., near Cario, N. Y. The smaller forms some- 
what resemble P. laxiflorum, but the glabrous sheaths and shorter. 
leaves, and the different shaped spikelets readily distinguish it 
