112 Rhodora [Mav 
P, walteri: Poir. Lam. Encycl. Suppl. 4: 282. 1816, not Pursh, 
1814; P. latifolium molle Vasey, U. S. Dept. Agr. Div. Bot. Bul. 8: 
34. 1889; P. porterianum Nash, Bul. Torr. Bot. Club, 22: 420: 
1895 ; P. Pubifolium Nash, ibid. 26: 577. 1899). — A rather slender, 
densely pubescent or rarely nearly glabrous, tufted perennial 3-7 dm. 
high, with broad, ovate, or lanceolate leaves, and rather large spike- 
lets in few-flowered, open panicles. Culms finally much branched 
above, glabrous or pubescent; nodes densely bearded with long 
reflexed hairs. Sheaths shorter than the internodes pubescent with 
long spreading hairs, also with a dense ring of hairs at the apex, or 
rarely nearly glabrous; ligule very short ; leaf-blades 7-11 cm. long, 
2—3 cm. wide, acute or acuminate, gradually narrowed to the rounded, 
cordate-clasping base, serrulate-scabrous on the margins, sparingly 
strigose-pubescent on the upper surface, pubescent with short, soft 
hairs on the lower surface or sometimes nearly glabrous. Panicle 3- 
11 cm. long, exserted or sometimes partly included in the upper 
sheath; rachis more or less densely pubescent with soft spreading 
hairs, or glabrous; branches alternate, glabrous or pubescent. 
Spikelets 4-5 mm. long, narrowly obovate, pubescent with long 
spreading hairs; first glume 3-nerved, about one-half as long as the 
spikelet, obtuse or acute ; second glume 11-nerved, a little shorter 
than the third glume which subtends a hyaline palea nearly its own 
length ; flowering glume about 3.5 mm. long, pubescent at the obtuse 
apex. 
General distribution: In open woodlands and thickets, Massa- 
chusetts to Illinois, south to Florida and Texas. June to October. 
MASSACHUSETTS: West Quincy, 7. Æ. Churchill, July 9, 1894. 
Connecticut: New Haven, /. A. Allen, July 14, 1879; Ledyard, 
Decatur Hill, 78 C. B. Graves. 
I t Leaves less than 2 cm. broad, not cordate-clasping. 
§ Spikelets 3 mm. long; whole plant very firm in texture. 
19. PANICUM SCRIBNERIANUM Nash, Bul. Torr. Bot. Club, 22: 
421, 1895. (Panicum pauciflorum of A. Gray, Man. Bot. 613, 1848, not 
Ell. 1817; Panicum scoparium of S. Watsin A. Gray, Man. Bot. ed. 6, 
632. 1890, not Lam. 1797; Panicum scoparium minor Scribn. Tenn. 
Agr. Exp. Sta. Bul. 7?: 48. 1894, not Panicum capillare minor 
Muhl. 1817.) 
An erect and finally branching perennial, 1.5 to 6 dm. high, with 
usually palpillate-pilose sheaths, more or less spreading flat leaves, 
which are smooth above, and ovoid panicles, 4 to 8 cm. long. 
Sheaths shorter than the internodes; ligule a short ciliate fringe; 
leaf-blades firm, lanceolate 5 to ro cm. long, 6 to 12 mm. wide, 
acuminate, somewhat clasping at the rounded or truncate base, more 
or less spreading, scabrous on the margins and on the lower sur- 
face which is sometimes pubescent. Panicles open, few-flowered, 
