GRASSES. 349 



Panicum laxiflorum Lam. Encycl. 4 : 748. 1797. LOOSE-FLOWERED PANICUM. 



Gray, Man. ed. 6, 633. Chap. Fl. Suppl. 667. Coulter, Contr. Nat. Herb. 2 : 506. 

 Scribner, Grass. Term. 51, /. 14, 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, reflexed hairs; 

 panicle much exserted, ample, ovate, open, with its branches widely spreading, 3 to 

 4i inches long; 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 <$ Earle). Mobile and Baldwin counties. 



This species includes forms from Florida and the eastern Gulf coast heretofore 

 united with P. laxiflorum Lam. 



Type localitv: "In clay soil, at Orange Bend, Lake County, Fla., March, 1894." 

 (Nash, 239). 



Herb. Geol. Surv. Herb. Mohr. 



Panicum ciliatum Ell. Sk. 1 : 126. 1817. 



P. ciliatifolium Kunth, Enum. 1 : 108. 1833. 



Ell. Sk. I.e. 



Alow, somewhat tufted, pale green perennial with an erect, smooth, and slender culm 

 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 

 numerous; 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 (Kearney). 



Type locality : " Grows in damp soils [South Carolina and Georgia]." 



Herb. Geol. Surv. Herb. Mohr. 



Panicum consanguineum Kuuth, Enum. 1: 106. 1833. 



Panicum villosum Ell. Sk. 1:124. 1817. Not Lam. 1791. Fide G. V. Nash, Bull. 

 Torr. Club, 23 : 147, 1896. 



Ell. Sk. 1. c. Gray, Man. ed. 6, 633. Chap. Fl. ed. 3, 585. 



Carolinian and Louisianian areas. Near the coast from North Carolina to Florida 

 and Louisiana. 



ALABAMA: Lower division 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. Stein leaves about 3, lanceolate, ascending, and like the sheaths spar- 

 ingly 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 fy Baker). 



Type locality : "Auburn, Lee County, Alabama." (Earle f Baker, Nos. 1532, 1535.) 



Herb. Geol. Surv. 



Panicum albo-margiiiatum 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 14 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 



