GRASSES. 3849 
Panicum laxiflorum Lam, Encyel. 4: 748. 1797. LOOSE-FLOWERED PANICUM. 
Gray, Man. ed. 6, 633. Chap. Fl. Suppl. 667. Coulter, Contr. Nat. Herb. 2:506. 
Scribner, Grass. Tenn. 51, ¢. 74, f. 55. 
Alleghenian to Louisianian area. New Brunswick; New York to Florida, 
ALABAMA: Over the State. In light shaded soil. Cullman County, 800 feet. Lee 
County, Auburn, ‘Tuscaloosa, Hale, and Dallas counties, Frequent; May to July; 
perennial, 
Type locality: ‘Avis d’Amerique septentrionale.” 
Herb. Geol. Surv. Herb. Mohr. 
Panicum pyriforme Nash, Bull. Torr. Club, 26:579, 1899, 
A densely tufted low perennial with rather slender weak culms 12 to 16 inches 
high, finally much branched; stem leaves 2 or 3, thin, lax, smooth on both surfaces, 
serrulate and rough on the margin, long-acuminate, narrowed to the base, 4 to 8 lines 
wide, on the branches much shorter, sheaths papillose-hirsute with retlexed hairs; 
panicle much exserted, ample, ovate, open, with its branches widely spreading, 3 to 
44 inches lopg; spikelets rather few, broadly obovate, pubescent; flowering glume 
ovate, strongly apiculate. 
Louisianian area, Florida, Mississippi. 
ALABAMA: Metamorphic hills to Coast plain. Damp sandy banks. Lee County, 
Auburn (Baker § Farle), Mobile and Baldwin counties. 
This species includes forms from Florida and the eastern Gulf coast heretofore 
united with 2. laxiflorum Lam. 
Type locality: “In elay soil, at Orange Bend, Lake County, Fla., March, 1894.” 
(Nash, 239). 
Herb. Geol. Surv. Herb. Molir. 
Panicum ciliatum !1]].S8k.1:126. 1817. 
P, ciliatifolium Kunth, Enum, 1: 108, 1833, 
EN. Sk. 1. e. 
A low, somewhat tufted, pale green perennial with an erect, smooth, andslenderculm 
8 to 12 inches high; sheaths smooth; leaves lanceolate, 1 to 2 inches in length and 2 
to 3 lines wide, smooth on both surfaces, and with ciliate margins; basal leaves very 
pumerous; panicle small, 1 to 2 inches long, exserted; spikelets on slender pedi- 
cels, obovate, acute, smooth; first glume more than half the length of the second. 
Louisianian area. Southeastern North Carolina along the coast to western 
Florida. ; 
ALABAMA: Coast plain. Damp low sandy soil. Vicinity of Mobile, June, July, 
in dry open places (/earney). 
Type locality: “ Grows in damp soils [South Carolina and Georgia }.” 
Herb. Geol. Surv. Herb. Mohr. 
Panicum consanguineum Kunth, Enum. 1: 106, 1833. 
Panicum villoswm Ell. Sk. 1: 124. 1817. Not Lam. 1791. Fide G. V. Nash, Bull. 
Torr, Club, 23: 147. 1896. , 
Ell. Sk. le. Gray, Man. ed. 6,633, Chap, FI. ed. 3, 5&5, 
Carolinian and Louisianian areas. Near the coast from North Carolina to Florida 
and Louisiana. 
ALABAMA: Lower divisiou Coast Pine belt. Coast plain. Damp light soil. Bald- 
win and Mobile counties. Washington County. March to July. Flourishes in 
the Coast plain throughout the winter, 
Type locality: ‘America septentrionalis.” 
Herb. Geol. Surv. Herb. Mohr. 
Panicum earlei Nash, Bull. Torr. Club, 26:571. 1899. 
A densely tufted perennial with slender culm 4 to 6 inches high, smooth; finally 
branched. Stem leaves about 38, lanceolate, ascending, and like the sheaths spar- 
inely hirsute with long spreading hairs, | inch to 1} inches long and 1 to 3 lines 
wide; rough on the margin; panicle broadly ovate, with smooth, spreading 
branches; spikelets elliptic, obtuse, smooth. 
Carolinian area, 
ALABAMA: Metamorphic hills Lee County, Auburn (Earle § Baker). 
Type locality: ‘‘Auburn, Lee County, Alabama,” (Karle § Baker, Nos. 1532, 1535.) 
Herb, Geol. Surv. 
Panicum albo-marginatum Nash, Bull. Torr. Club, 24:40. 1897. 
A slender, tufted, smooth perennial, with the rather weak culms simple or 
branched from near the base, 8 to Lf inches high; leaves lanceolate, mostly clustered 
near the base, firm, the largest 1} to 2 inches long and 3 to 4 lines wide; the few 
upper leaves much reduced, all with white thickened margins. Panicles small, 1 to 
