SEDGES. 403 



ALABAMA: Coast region. Brackish, and salt marshes. Mobile and Baldwin coun- 

 ties. July to September; common. Perennial. 

 Type locality : " Hab. in Carolina inferiore." 

 Herb. Geol. Surv. Herb. Mohr. 



Scirpus cylindricus (Torr.) Britton, Trans. N. Y. Acad. Sci. 11 : 79. 1892. 



CANBY'S BULRUSH. 



Scirpus maritimus var. cylindricus Torr. Ann. Lye. N. Y. 3 : 325. 1836. 



S. leptolepis Chap. Fl. 520. 1860. 



S. canbi/i Gray, Am. Journ. Sci. ser. 2, 38 : 289. 1864. 



Gray, Man. ed. 6, 580. Chap. Fl. 20. 



Carolinian and Louisianian areas. Coast of Maryland to Florida, and west to Mis- 

 sissippi and Louisiana. 



ALABAMA : Coast plain and Lower Pine region. In still-flowing water. Pine-barren 

 streams. Mobile and Baldwin counties. May to July ; frequent. 



Rhizoma fibrous, with slender runners. Perennial. 



Type locality : "Georgia, Dr. Baldwin!" 



Herb. Geol. Surv. Herb. Mohr. 



Scirpus olneyi Gray, Bost. Journ. Nat. Hist. 5 : 238. 1845. OLNEY'S BULRUSH. 



Gray, Man. ed. 6, 579. Chap. Fl. 519. Coulter, Contr. Nat. Herb. 2 : 471. Wats. Bot. 

 Calif. 2 : 218. 



MEXICO. 



Alleghenian to Louisianian area. Southern New England along the tide-water 

 region to Florida, west to Texas, New Mexico, and California. 



ALABAMA : Coast plain and Littoral belt. In fresh, brackish, and salt marshes. 

 Mobile County, swamps in the delta of Mobile River. Baldwin County, Bon Secour, 

 salt marshes. July to October; common. Perennial. 



Stem 4 to 5 feet high, from a long creeping rhizoma. 



Type locality: "In a salt marsh on the Seekonk River, Rhode Island, Mr. S. T. 

 Olney." Also "detected on the coast of New Jersey by * * * Dr. Knieskern." 



Herb. Geol. Surv. Herb. Mohr. 



Scirpus lacustris L. Sp. PI. 1 : 48. 1753. LARGE BULRUSH. 



Scirpus validus Vahl, Enum. 2 : 268. 1806. 



Ell. Sk. 1:81. Gray, Man. ed. 6, 580. Chap. Fl. 520. Wats. Bot. Calif. 2 : 219. Coul- 

 ter, Contr. Nat. Herb. 2 : 471. Griseb. Fl. Brit. W. Ind. 571. 



Under several forms, widely distributed in temperate and warmer regions. 



EUROPE, ASIA, OCEANIA, NORTH AND SOUTH AMERICA. 



All over the North American continent from British America to the Gulf, west to 

 the Rocky Mountains and the Pacific coast. 



ALABAMA : Over the State. In gently-flowing waters, lakes, and deep ponds. Tus- 

 caloosa, Mobile, and Baldwin counties. July, August ; common. Perennial. 



Type locality: "Hab. in Europae aquis puris stagnantibus et fluviatilibus. 



Herb. Geol. Surv. Herb. Mohr. 



Scirpus divaricatus Ell. Sk. 1 : 88, t. 2,f. 4. 1816. SPREADING BULRUSH. 



Ell. 1. c. Chap. 520. 



Louisianian area. South Carolina, Georgia, and from western Florida to Louisiana. 



ALABAMA: Upper division Coast Pine belt. Shaded swamps. Henry County, 

 headwaters of Choctawhatchee River, near Echo. July; rare. Perennial. 



Type locality : "Grows in the pine barren between Bees Creek and Perrysburg 

 [S.C.]." 



Herb. Geol. Surv. 



Scirpus robustus Pursh, Fl. Am. Sept. 1 : 56. 1814. SALT-MARSH BULRUSH. 



Scirpus maritimus var. macrostachyusMichK. Fl. Bor. Am. 1:32. 1803. Not S. macro- 

 stcfkhyus Lam. 



Ell. Sk. 1 : 86. Gray, Man. ed. 6, 581. Chap. Fl. 520. Coulter, Contr. Nat. Herb. 

 2:472. 



Alleghenian to Louisianian area. Nova Scotia; New England to Florida, west to 

 Texas along the shore. 



ALABAMA: Littoral region. Brackish and salt marshes. Mobile County, West 

 Fowl River. July. Perennial. 



Type locality: "In salt marshes and on the banks of rivers, common." 



Herb. Mohr. 



Scir pus fluviatilis (Torr.) Gray, Man. 527. 1848. RIVER CLUB-RUSH. 



Scirpns maritimus var. fluviatilis Torr. Ann. Lye. N. Y. 3 : 324. 1836. 

 Gray, Man. ed. 6, 581. Britt. & Brown. 111. Fl. 1 : 268. 



