GRASSES. 351 



ALABAMA: Coast plain; low damp grassy pine barrens. Mobile County, Sumnier- 

 ville, June 1, 1899. 



Type locality: " White Cliff Springs [Tennessee], July, 1890; Ttillahoma, July, 

 1892." (Scribner.) 



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 4-J inches long, T V to 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 (E. A. Smith). Washington, Baldwin, and Mobile 

 counties, April, May; frequent; perennial. 



Type locality : " Darien Junction, Mclntosh County, Ga." (Dr. John K. 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- 

 brancned above, forming dense masses toward the top; stem leaves 4 or 5, erect- 

 spreading, narrow, lanceolate, with serrulate margins, 1 to H 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, 1 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 (T. H. Kearney, 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 nashiaiium Scribner, Bull. U. S. Dept. Agr. Div. Agrost. 7 : 79, /. 61. 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 refiexed. Closely allied to P. demissum Trin. 



Carolinian and Louisianian areas. Southeastern Virginia, along the coast to Florida 

 and Mississippi. 



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 to 11 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. 



, r pe localitv: "Low pine land at Eustis, Lake County, Florida." (Nash, May, 

 No. 787)." 



Panicum roanokense Ashe, Journ. Elisha Mitch. Soc. 15 : 44. 1898. 



A slightly t nfted, 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 neVved; panicle 2 to 3 

 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 btelt to Coast plain. In dry woods. Tuscaloosa County 

 (Dr. E. A. Smith). Mobile County. April, May; not frequent. 



Type locality: " Roanoke Island, N. C." ( W. W, AsJie, June, 1898.) 



Type 



1894, N 



