RUSHES. 433 
Differs from the type by the low habit of growth (rarely 2 inches high), habitat, 
and Southern distribution. 
Type locality: ‘‘Haec varietas in planitie Rhenana occurrit, (zwischen Maintz 
und Worms. )” 
Herb. Geol. Surv. Herb. Mohr. 
Juncus tenuis Willd. Sp. Pl. 2: 214. 1799, SLENDER RusH. 
Juncus bicornis Michx. Fl. Bor. Am.1:191. 1803. 
Ell. Sk. 1: 406. Gray, Man. ed. 6,542. Chap. F1.493. Coulter, Contr. Nat. Herb. 2: 
446. Wats. Bot. Calif.2: 207. Griseb. Fl. Brit. W. Ind. 581. 
WESTERN EvuROPE, WEsT INDIES, MEXICO, SOUTH AMERICA. 
Hudsonian zone to Louisianian area. Nova Scotia, Hudson Bay, Ontario, west to 
oo Island, Oregon, California; from New England to the Gulf, west to 
‘exas. 
ALABAMA: Over the State. Sandy wet soil, ditches. Mobile County. May to 
June; abundant. 2 
The reduced form, 4 to 8 itches 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 Louisianian areas. New Jersey to Florida, west to eastern Texas. 
ALABAMA: Coast Pine 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, stiff soils [South Carolina and Georgia] ; 
very common.” 
Herb. Mohr. 
Juncus setaceus Rostk. Monogr. June. 13, t.2,f.2. 1801. AWL-LEAVED RUSH. 
Ell. Sk.1: 405. Gray, Man. ed. 6, 541. Chap. F1.493. Coulter, Contr. Nat. Herb. 
2: 446. 
Carolinian and Louisianian 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 §: Earle,511). ‘Tuscaloosa County. 
Autauga County, Prattville (#. 4. 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. 
Alleghenian to Louisianian area. Ontario, New England west to Michigan and 
Missouri and south to Florida and Louisiana, 
ALABAMA: Tennessee Valley 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. 
Junous aristulatus Michx. Fl. Bor. Am. 1:192. 1893. 
J. biflorus Ell. Sk. 1:407. 1817. 
Gray, Man. ed. 6,542. Chap. F1.495. Coulter, Contr. Nat. Herb. 2: 450. 
Carolinian and Louisianian 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). Mobile County. Baldwin 
County, Fly Creek. June; frequent. 
A form with weak slender nodding stems, the 3 or 4 flowered heads in » compact 
panicle. In shallow miry ponds. Mobile County, Springhill. 
Type locality: ‘Hab. in Georgia et Carolina.” 
Herb. Geol. Surv. Herb. Mohr. 
15894 28 
