RUSHES. 433 



Diflfers from the type by the low habit of growth (rarely 2 iuches high), habitat, 

 and. Southern distribution. 



Type locality : " Haec varietas iu planitie Rhenana occurrit, (zwischeu Maintz 

 unci Worms.)" 



Herb. Geol. Surv. Herb. Mohr. 



Juncus tenui-s Willd. Sp. PI. 2 : 214. 1799. Slender Rush. 



Juncus bicornis Michx. Fl. Bor. Am. 1 : 191. 1803. 



Ell. Sk. 1 : 406. Gray, Man. ed. 6, 542. Chap. P^l. 493. Coulter, Contr. Nat. Herb. 2 : 

 446. Wats. Bot. Calif. 2 : 207. Griseb. Fl. Brit. W. Ind. 581 . 



Western Europe, West Indies, Mexico, South America. 



Hudsonian zone to Louisiauian area. Nova Scotia, Hudson Bay, Ontario, west to 

 Vancouver Island, Oregon, California; from New England to the Gulf, west to 

 Texas. 



Alabama: Over the State. Sandy wet soil, ditches. Mobile County. May to 

 June; abundant. 



The reduced form, 4 to 8 inches high, with the flowers in close clusters (J. congestus 

 Engelm.) prevails in the Coast plain in close damp soil. 



Type locality : " Hab. in America boreali." 



Herb. Mohr. 



Juncus dichotomus Ell. Sk. 1 : 406. 1817. Forked Rush. 



Gray, Man. ed. 6, .542. Chap. Fl. 493. Coulter, Contr. Nat. Herb. 2 : 446. 



Carolinian and Louisiauian areas. New Jersey to Florida, west to eastern Texas. 



Alabama: Coast Piue belt. Sandy borders of ditches, ponds. Mobile and Bald- 

 win counties. Most common near the coast. May, June. 



Type locality : " In wet pastures and close, stiif soils [South Carolina and Georgia] ; 

 very common." 



Herb. Mohr. 



Juncus setaceus Rostk. Monogr. June. 13, i. l,f. 2. 1801. Awl-leaved Rush. 



Ell. Sk. 1 : 405. Gray, Man. ed. 6, 541. Chap. Fl. 493. Coulter, Contr. Nat. Herb. 

 2 : 446. 



Carolinian and Louisiauian areas. Southern Virginia and North Carolina to East 

 Tennessee, Louisiana, eastern Texas, and Missouri. 



Alabama: Mountain region, Metamorphic hills. Central Pine belt to Coast plain. 

 Shaded swamps. Lee County, Auburn {Baker <S' I'^arle,^\\). Tuscaloosa County. 

 Autauga County, Prattville {E. A. Smith). Mobile County. June. Flowers red- 

 dish brown. Not frequent. 



Type locality : " Hab. in Pensylvania." 



Herb. Geol. Surv. Herb. Mohr. 



Juncus marginatus Rostk. Monogr. June. 38. 1801. Grass-leaf Rush. 



Gray, Man. ed. 6, 542. Chap. Fl. 495. 



Northern Mexico. 



AUeghenian to Louisiauian area. Ontario, New England west to Michigan and 

 Missouri and south to Florida and Louisiana. 



Alabama : Tennessee A'alley to Coast plain. Grassy swales, border of ditches. 

 Cullman, Tuscaloosa, Montgomery, Washington, Mobile, and Baldwin counties. 

 May ; common. 



Type locality : '•' Hab. in Pensylvania." 



Herb. Mohr. 



Juncus marginatus aristulatus (Michx.) Coville, Proc. Biol. Soc. Wash. 8 : 123. 1893. 



Juncus arisfitlatiis Michx. Fl. Bor. Am. 1 : 192. 1803. 



,/. bifloriis Ell. Sk. 1 :407. 1817. 



Gray, Man. ed. 6, 542. Chap. Fl. 495. Coulter, Contr. Nat. Herb. 2 : 450. 



Carolinian and Louisiauian areas. New Jersey and Delaware to Florida, west to 

 eastern Texas. 



Alabama : Mountain region to Coast plain. Shaded damp banks pine-barren 

 streams. Lee County, Auburn (Baker <)'■ Earle, 510). ilobile County. Baldwin 

 County, Fly Creek. .June; frequent. 



A form with weak slender nodding stems, the 3 or 4 flowered heads in a compact 

 panicle. In shallow miry ponds. Mobile County, Springhill. 



Type locality : " Hab. in Georgia et Carolina." 



Herb. Geol. Surv. Herb. Mohr. 



15894—28 



