334 PLANT LIFE OF ALABAMA. 



VALLISNERIA L. Sp. PI. 2 : 1015. 1753. 



Two species, perennial aquatics, of the temperate and warmer regions of both 

 hemispheres. 



Vallisneiia spiralis L. Sp. PI. 2 : 1015. 1753. EEL GRASS. 



Vallisneria americann Michx. Fl. Bor. Am. 2:220. 1803. 



Ell. Sk. 2 : 666. Gray, Man. ed. 6, 496. Chap. Fl. 451. Coulter, Contr. Nat. Herb. 

 2 : 422. 



SOUTHERN EUROPE, ASIA, AUSTRALIA. 



Canadian zone to Louisianian area. New Brunswick, Ontario, and New York to 

 Minnesota, Illinois, Missouri, Arkansas, and Tennessee, south to Florida and Texas. 



ALABAMA: Coast region. Gently flowing water. Mobile County, estuaries of 

 Mobile and Dog rivers, Mobile Bay. Flowers in July, fruit in August. Abundant. 



Type locality: "Hab. in Pisae et Florentiae fossis." 



Herb. Geol. Surv. Herb. Mohr. 



POACEAE (GRAMINEAE). Grass Family. 



TRIPSACUM L. Syst. PI. ed. 10, 2 : 1261. 1759. 



Two species, perennials, of warmer temperate regions in North America. 

 Tripsacum dactyloides L. Sp. PI. ed. 2, 2 : 1378. 1763. SPIKED GAMA GRASS. 



Ell. Sk. 2 : 522. Gray, Man. ed. 6, 636. Chap. Fl. 580. Coulter, Coutr. Nat. Herb. 

 2:491. 



BRAZIL. 



Alleghenian to Louifiianian area. Southern New England, New York, and Penn- 

 sylvania, west to Illinois, Missouri, and Arkansas, south to Florida and Texas. 



ALABAMA: Mountain region. Central Prairie region to Coast plain. Low damp 

 banks. Lee County, Auburn (Baker $' Earle, 650). Montgomery County (E. A. 

 Smith). Wilcox County, near Peachtree. Mobile County. Scattered, not infre- 

 quent, but nowhere abundant. July to August. 



Type locality: "Hab. in America." 



Economic :ises : Of some value for forage. 



Herb. Geol. Surv. Herb. Mobr. 



ERIANTHUS Michx. Fl. Bor. Am. 1 : 54. 1803. PLUME GRASS. 



About 20 species, coarse perennials, of the warmer regions of both hemispheres. 

 Atlantic North America, 6 species. 



Erianthus alopecuroides (L.) Ell. Sk. 1 : 38. 1816. In part. 



SPIRAL-AWNED PLUME GRASS. 

 Andropogon alopecuroides L. Sp. PL 2 : 1045. 1753. 



Ell. 1. c. Gray. Man. ed. 5, 651, in part. Chap. Fl. ed. 3, 595. Coulter, Contr. Nat. 

 Herb. 2 : 493, in part. Brifet. & Brown, 111. Fl. 1 : 98. 



Carolinian to Louisiauian area. Kentucky and Missouri; south to Tennessee and 

 Georgia. 



ALABAMA: From the coast to the mountains. In wet and dry soil. Cullman and 

 Clay counties. Chambers (E. A. Smith), Mobile, and Baldwin counties. Four to 5 

 feet high. September. Near the coast; mostly found in swamps. In upper dis- 

 tricts in drier soil. 



Type locality : "Hab. in America septentrionaliore." 



Herb. Geol. Surv. Herb. Mohr. 



Erianthus saccharoides Michx. Fl. Bor. Am. 1 : 55. 1803. 



FOXTAIL PLUME GIIASS. 



Ell. Sk. 1 : 38, in part. Gray, Man. ed. 6, 637. Coulter, Contr. Nat. Herb. 2 : 493, in 

 part. Britt. & Brown, 111. Fl. 1 : 99. 



CUBA, MEXICO, BRAZIL. 



Louisianian and Carolinian areas. From southern Virginia to Florida, west to 

 Louisiana and Texas. 



ALABAMA: Coast plain to Central Prairie region. In deep open marshes, Mont- 

 gomery County. Mobile County, marshes of Mobile River. Most frequent on the 

 coast. Eight to 10 feet high. October, November. 



Type locality: "Hab. a Carolina ad Floridam, in Immidis." 



