ALTAMAHA GRIT REGION OF GEORGIA 295 



A. palustris [Chapm.] Vasey, Contr. U. S. Nat. Herb. 3 : 45. 1892. 



Cypress and other ponds in the pine-barrens, coffee {6go), 

 Irwin, berrien, dooly, colquitt. Fl. September. Inland 

 to Sumter, Lee and Early Counties in the Lower Oligocene 

 region, and coastward to the vicinity of Okefinokee Swamp, 

 but not known northeast of the Altamaha River. 



South to central Florida and west to Louisiana, in the pine- 

 barrens. 

 A. virgata Trm. ; Spreng. Neue Entdeck. 2 : 60. 182 1. 



A. condensata Chapm., Bot. Gaz. 3 : 19. 1878. 



A. Combsii Scribn. & Ball, Bull. Div. Agrost. U. S. Dept. 

 Agr. 24: 43. f. 17. 1900. 



Montgomery: Sand-hills of Gum Swamp Creek {1982) and 

 Little Ocmulgee River, Sept. 10, 1903. Inland to the fall- 

 line sand-hills near Augusta (A. Cuthbert), and coast- 

 ward to Liberty, Mcintosh, and Wayne Counties. 



Also in northern Florida. 



A. stricta Mx , Fl. i: 41. 1803. " Wire -Grass. " 



Everywhere in dry pine-barrens ; doubtless the most abundant 

 vascular plant in our territory. Of little intrinsic value, but 

 its abundance makes it of considerable economic importance, 

 it being the principal food supply for countless thousands 

 of cattle and sheep. Other uses are being discovered for it, 

 such as its manufactxire into matting. 

 Virginia (?) to central Florida and Louisiana, confined to the 

 pine-barrens or nearly so. Also in the Bahamas (Hitchcock). 



A. sp. (near Mohrii). 



Montgomery: Sand-hills of Little Ocmulgee River, Sept. 10, 

 1903 (1988). Grows in tufts which die out at the center 

 as they grow at the edges, giving a sort of "fairy -ring" 

 appearance. 



CENCHRUS L., Sp. PI. 1050. 1753. 

 C. tribuloides L., 1. c. 



berrien: Brookfield, Sept. 27, 1902. 



Widely distributed in the Eastern United States, probably 

 introduced from the tropics. 



