330 PLANT LIFE OF ALABAMA. 



ALABAMA: Over the State. Marshes, ditches, borders of ponds. Common every- 

 where. Flowers July and August. Perennial. 



Type locality: " Habitat in Europae aquosis et ad ripas fluviorum lacuuin.' 7 

 Herb. Geol. Surv. Herb. Mohr. 



ECHINODORUS Engelm. in Gray, Man. 460. 1848. 



Eight to 10 species, of warmer temperate and tropical America. North America, 

 3 species. Perennial aquatic herbs. 



Echinodorus radicans (Nutt.) Engelm. in Gray, Man. 460. 1848. 



CREEPING WATER PLANTAIN. 



Sagittaria radicans Nutt. Trans. Am. Phil. Soc. ser. 2, 5 : 159. 1833-37. 



Gray, Man. ed. 6, 556. Chap. Fl. 448. Coulter, Contr. Nat. Herb. 2 : 456. 



SOUTHERN MEXICO. 



Carolinian and Louisianian areas. Southern Illinois, Missouri, North Carolina to 

 Florida, west to Texas and Arkansas. 



ALABAMA: Coast plain to Central Pine belt. Marshes. Montgomery and Mobile 

 counties. Frequent in the river marshes. Flowers May to July. White. 



Type locality not ascertained. Eugelmanu's locality, "Swamps, Illinois and 

 southward." 



Herb. Geol. Surv. Herb. Mohr. 



SAGITTARIA L. Sp. PI. 2:993. 1753. ARROWHEAD. 1 



About 30 species, of warmer temperate regions of both hemispheres, mostly 

 American. North America, 20 species. Perennial paludial herbs. 



Sagittaria latifolia Willd. Sp. PI. 4:409. 1806. (Form S. latifolia proper, J. G. 

 Smith, Rep. Mo. Bot. Gard. 6:36.) 



COMMON ARROWHEAD. BROAD-LEAVED ARROWHEAD. 



Sagittaria variabilis Engelm. in Gray, Man. 461. 1848. 



S. sagittaefolia v&t.variabilis Michel in DC. Monogr. Phan. 3:69. 1881. 



S. hastata Pursh, Fl. 396. 1814. 



Ell. Sk. 2:589. Gray, Man. ed. 6, 554. Chap. Fl. 449. Wats. Bot. Calif. 2:201. 

 Coulter, Contr. Nat. Herb, 2:455. 



MEXICO. 



Alleghenian to Louisianian area. Nova Scotia to British Columbia and coast of 

 California. From Canada to Florida, through the Gulf States to Mexico. 



ALABAMA: Coast plain. Open marshes, swamps. Mobile County. Undoubtedly 

 over the State. Flowers white, September, October. Abundant in the river 

 marshes about Mobile. 



Type locality: "Hab. a Canada ad Carolinam." 



Herb. Geol. Surv. Herb. Mohr, 



Sagittaria latifolia pubescens (Muhl.) J. G. Smith, Mem. Torr. Club, 5:25. 1894. 



(Form c, J. G. Smith, Rep. Mo. Bot. Gard. 6:40.) DOWNY ARROWHEAD. 



Sagittaria pubescens Muhl. Cat. 86. 1813. 



S. variabilis var. pubescens Engelm. Gray, Man. ed. 5, 555. 1856. 



Gray, Man. ed. 6, 555. 



Louisiauian area. Georgia, Florida. 



ALABAMA: Central Prairie region to Coast plain. In gently flowing water. Mobile 

 County, Mobile River. Baldwin County, near Daphne, in shaded swamps. Mont- 

 gomery County, Cypress Pond. Flowers June to October, 10 to 15 inches high; 

 frequent. 



Type locality : " Pensylvania." 



Sagittaria viscosa Mohr, Bull. Torr. Club, 24 : 19, t. 289. 1897. 



CLAMMY ARROWHEAD. 



Monoecious; scape slender, over 2 feet long, branched from the lowest verticil, 

 leaves membrauaceous, smooth, broadly ovate, rounded toward the slightly apicu- 

 late apex ; blade 6 to 7 inches wide, 12 to 14 inches long, deeply sagittate, the broad 

 lobes acute, about 6 inches long, widely diverging; panicle slender, main branch 

 12 to 13 inches long, the branches about half its length; bracts coriaceous, papil- 

 lose, rugose, viscid, free at the base, oblong-ovate, obtuse; sepals thick and like 

 the bracts papillose, glutinose, ovate-lanceolate; stamens numerous (20 to 25), fila- 



1 J. G. Smith, Revision of N. Amer. species of Sagittaria and Lophotocarpus, Sixth 

 Annual Report Mo, Bot, Gard, 1895. 



