GRASSES. 351 
ALABAMA: Coast plain; low damp grassy pine barrens. Mohile County, Summer- 
ville, June 1, 1899. 
Type locality: ‘‘White Cliff Springs [Tennessee], July, 1890; Tullahoma, July, 
1892,” (Seribner.) 
Herb. Geol. Surv. Herb. Mohr. 
Panicum parvispiculum Nash, Bull. Torr. Club, 24: 347, 1897. 
Stems 12 to 20 inches long in tufts, erect to decumbent at the base, appressed-hir- 
sute; internodes blackish brown, more or less pubescent; sheaths shorter than the 
internodes, appressed-hirsute to puberulent or glabrous and ciliate on the margins; 
ligule a ring of copious hairs; leaves erect or ascending, rigid, linear-lanceolate, 
rough on the margins, glabrous above, pubescent beneath, acuminate at apex, 
rounded at the base, the primary 1} to 44 inches long, ;|; to 4 inch wide, the later 
about 2 inches long. Primary panicle broadly ovate, 3 to 4 inches long, with ascend- 
ing branches, much divided from the base, frequently pilose at the base; spikelets 
numerous, small, on divergent pedicels, outer glumes closely pubescent with spread- 
ing hairs; the first one-third as long as the spikelet. 
Louisianian area. Georgia, Florida. 
ALABAMA: Central Pine belt to Coast plain. Dry open woods, pastures, borders 
of fields. Tuscaloosa County (/. A. Smith). Washington, Baldwin, and Mobile 
counties, April, May; frequent; perennial. 
Type locality: ‘‘ Darien Junction, McIntosh County, Ga.” (Dr. John Wh. Small). 
Herb. Geol. Surv. Herb. Mohr. 
Panicum longiligulatum Nash, bull. Torr. Club, 26:575, 1899. 
A tufted rather smooth perennial, the slender culm 16 to 20 inches long, fasciculate- 
branched above, forming dense masses toward the top; stem leaves 4 or 5, erect- 
spreading, narrow, lanceolate, with serrulate margins, 1 to 14 inches long, those of 
the branches smaller; sheaths from one-half to two-thirds as long as the internodes, 
ligule a ring of long silky hairs; basal leaves thick, broadly lanceolate, 14 to 2 
inches long; panicle oval, about 2 inches long, exserted, with spreading branches; 
spikelets ovate, densely pubescent, with spreading hairs. 
Louisianian area. Western Florida. 
ALABAMA: Coast plain. Damp woods. Mobile County (% H. Nearney, July). 
Type locality: ‘‘Apalachicola, Fla.” (Vasey, 1892). 
Near P. parvispiculum, from which it differs in its more slender culms, its smaller 
blades, and the glabrous margins of the sheaths (Nash). 
Panicum nashianum Scribner, Bull. U.S. Dept. Agr. Div. Agrost. 7:79, f. 62. 1897. 
NaSH’s PANIC GRASS. 
Slender and finally much branched, perennial, 5 to 10 inches high, with flat short 
leaves, ciliate on the margin toward the base, and open pyramidal panicles, the 
flexuous branches widely spreading or reflexed. Closely allied to P. demissum Trin. 
Carolinian and Louisianianareas. Southeastern Virginia, along the coast to Florida 
and Mississippl. 
ALABAMA: Coast plain. Low pine barrens. Mobile County. March to May. 
Type locality: ‘Near the coast, Virginia to Mississippi.” 
Herb. Geol. Surv. Herb. Mohr. 
Panicum webberianum Nash, Bull. Torr, Club, 23: 149. 1896. 
A slender, erect, rather smoothish perennial, with an erect or ascending stem 18 to 
24 inches long, smooth except below; sheaths smooth, except the ciliate margins, 
inflated; leaves erect or erect-spreading, lanceolate, narrowed at the roundish base, 
2 to 3 inches long, 3 or 4 lines wide, 7 to11 nerved, glabrous at the base, sparingly cil- 
iate; panicle 2 to 4 inches long, } inch wide, the mostly simple branches spreading. 
Louisianian area, Florida, 
ALABAMA: Coast plain, damp pine woods, Mobile County, Summerville, June, 
1899. 
Type locality: ‘‘Low pine land at Eustis, Lake County, Florida.” (Nash, May, 
1894, No. 787). 
Panicum roanokense Ashe, Journ. Elisha Mitch. Soc.15:44. 1898, 
A slightly tufted, erect, slender, smooth perennial, the erect culm about 18 inches 
high from a geniculate base, in specimens from Alabama faintly hairy at the nodes; 
leaves narrowly lanceolate, 2 to 3 inches wide, firm, 5 to 7 nerved; panicle 24 to3 
inches long, broadly ovate, the slender fascicled branches spreading; spikelets 
numerous, 1 line long, elliptical, obovate, glabrous. 
Carolinian and Louisianian areas. North Carolina, Mississippi. 
ALABAMA: Central Pine belt to Coast plain. In dry woods. Tuscaloosa County 
(Dr. E, A. Smith). Mobile County. April, May; not frequent. 
Type locality: ‘‘ Roanoke Island, N.C.” (JV. IV, Ashe, June, 1898.) 
