SEDGES. 397 



West Indies, Mexico to Brazil, Argentina. 



Carolinian and Louisiauian areas. Central New York to Michigan; south from 

 New Jersey to Florida, west to Arkansas and Texas. 



Alabama : Coast plain. Central Prairie region. Shallow'ponds. Mobile County, 

 Choctaw Point. Wilcox. County (Buckley). June,,July; not rare. Perennial. 



Type locality : Jamaica. 



Herb. Geol. Surv. Herb. Mohr. 



Eleocharis ochreata (Nees) Steud. Syn. PI. Cyp. 79. 1855. Pale Spike-rush. 



Eleogenns ochreatiis Nees in Mart. Fl. Bras. 2, pt. 1 : 102. 1842. 



Scirjnts ocreatus Griseb. Fl. Brit. W. Ind. 570. 1864. 



S. anisochaeius Sauv. Fl. Cub. 174. 1868. 



Chap.Fl.ed.3,545. 



"Rhizoma fibrous, stoloniferous; stems low, striate, knotless; sheaths loose, mem- 

 branaceous, pointless; spikelets ovate-oblong, 5 to 15 flowered; glumes few-ranked, 

 elliptical-oblong, bluntish; style bifid; aclienium shining brown, obovate, bicon- 

 vex, smooth, nearly as long as the bristles ; tubercle small, conical, pointed, about one- 

 third as broad as the achenium." Grisebach. 



West Indies, Mexico, Central America, Brazil. 



Carolinian and Louisianiau areas. Southern Virginia, Florida, Alabama; Rocky 

 Mountains, in thermal springs. (Montana, Yellowstone Park.) 



Alabama : Coast plain. Exposed muddy places, ditches, and in still flowing water. 

 Mobile County, Dauphin way, miry pools; West Fowl River, damp sands near the 

 shore. Baldwin County, Fly Creek. June to, July; not infrequent. Perennial. 



Varies greatly in size and habit of growth, according to locality. In moist sand 

 the rhizome is fibrous, tardily stoloniferous; the stem more rigid, 4 to 6 inches high; 

 the spikelets half a line wide, ovate, 5 or 6 flowered. In wet places the rhizomes are 

 more or less stoloniferous, the stem weak, slender; the spikelets 1 to 2 lines long, 

 acute, 15 to 20 flowered. Immersed in still-flowing brooks, the stolons are highly 

 proliferous, the floating flaccid stems 2 to 3 ,feejb long, forming dense mats; the 

 achenes almost black, shining. 



Type locality, Brazilian. 



Herb. Geol. Surv. Herb. Mohr. 



Eleocharis olivacea Torr. Ann. Lye. N. Y. 3 : 300. 1836. 



Bright-green Spike-rush. 



Gray, Man. ed. 6, 575, /. ,?, f. 1-5. Chap. Fl. 518. 



AUeghenian to Louisiauian area. New England (Mount Desert Island); western 

 New York and New Jersey to North Carolina and Florida, west to Mississippi and 

 Colorado. 



Alabama : Lower Pine region. Coast plain. Shaded margins of ponds, ditches. 

 Mobile County. Flowers June, July ; not rare. Perennial. 



Type locality: "Pine barrens of New Jersey!; o^n Long Island near Babylon!; 

 Tewksbury pond, Mass., B. I). Greene, Esq. ! 



Herb. Geol. Surv. Herb. Mohr. 



Eleocharis capitata (Willd.) R. Br. Prodr. Fl. Nov. Holl. 225. 1810. 



Capitate Spike-rush. 



Scirpus capitatus Willd. Sp. PI. 1 : 294. 1795. 



Gray, Man. ed. 6, 574. Chap. Fl. 518. Conker, Contr. Nat. Herb. 2 : 467. ( Jriseb. 

 Fl. Brit. W. Ind. 570. 



Tropical Asia, Africa, Australi.\, West Indies, Mexico to Brazil. 



Carolinian and Louisiauian areas. Maryland to Florida, west to Indiana, Texas, 

 New Mexico, and Oregon. 



Alabama: Littoral region. Damp sand near salt water. Mobile County, West 

 Fowl River, western shore Mobile Bay. Flowers July ; rare. Annual. 



Type locality: " Hab. in Virginia inque insulis Caribaeis." 



Herb. Geol. Surv. Herb. Mohr. 



Eleocharis ovata (Roth) Roem. & Schult. Syst. Veg. 2:152. 1817. 



Ovoid Spike-rush. 



Scirpus ovatxs Roth, Cat. 1 : 5. 1797. 



S. capitatus Walt. Fl. Car. 70. 1788. Not Willd. 



S. ohiusus Willd. Enum. 1 : 76. 1809. 



Eleocharis obtusa Schult. Mant. 2 : 89. 1824. 



Ell. Sk. 1 : 77. Gray, Man. ed. 6, 574. Chap. Fl. 518. Coulter, Contr. Nat. Herb. 

 2 : 468. Wats. Bot. Calif. 2 : 222. 



Central Europe, Asia, Siberia. 



Canadian zone to Louisianiau area. Nova Scotia and Quebec to British Colum- 

 bia ; New England, west to Nebraska, south to the Gulf and from Florida to Texas 

 and Arkansas. 



