.').'iO I'l.ANl' LIFK OK A I. A I! A MA. 



Ai.aha.ma: Ovcrtho State. M.mhIh-s, ditclicH, liordtrs of poiids. Coniinon <-viry- 

 wliiic. I'lowois .Inly :>ii(l Aiijjiist. I'crtiniial. 



lyj)!' liicality : " llaliitat in Ijiropao iiiiuosis vt a<l ri]>as ilnvidniiii larmiin." 

 lleili. (jt'ol. Sill \ . Ilt'il). Molir. 



ECHINODORUS Hn^^din. in <!iay. Man. If.O. IHls. 



Ei;;lit t<> in spccii-s, of warnuT loiiiptMato .ind tropical Aincrii-u. North Anirrit-a, 

 H species. I'lTi'iiiiial aijiiatic herbs. 



Echinodoius radicaiis (Nutt. ) Knj;cliM.iii <May, Man. UiO. IfSls. 



CitKKi'iNc Watki: I'iantain. 



Sdf/illnrifi rudicntis Null, iraiis. Am. Phil. Soc. st-r. 12. 5 : 1")!). ISIilJ-liT. 



(iray. .Man. ed. tl, o.^ti. Chap. F1.44«. Coulter, Coiitr. Nat. lierli. 2 : I.")f,. 



Soi IMKUN Mkxico. 



Carolinian and Lonisi.'iniaii areas. Sonthfni Illiiicds, .Missouri. North Carolina to 

 Florida, west to Texas and Arkansas. 



Alaija.ma: Coast ])lain to Central Pine belt. Marshes. Moutj^onicrj' and Mobile 

 comities. Preijnent in tlie river marshes. Flowers May to .Inly. White. 



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

 sontlnvard."' 



Herb. Geol. Siirv. Herb. .Mohr. 



SAGITTARIA ]>. Sp PI. 2 : 9!)3. 17.5.3. Akiiow iikai..' 



About !>() 8]iecies, of warmer temperate regions of liotli hemispheres, mostly 

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



Sagittaria latifolia Wilhl. Sp. PI. 4:409. 1806. (Form S. lalifolUi i-roper. .(, G. 

 Smith, Kep, Mo. Bot. Card. 6:36.) 



Common AnuowiiEAn. Bkoad-lkaved .Vkkowiikau. 



SaffHtaria variahiJis Engelm. in Gray, Man. 461. 1848. 



S. aaqitiaefolia var. ruriabiUn Michel in DC. Mouogr. Phan. 3:69. 1881. 



S. hasUtta Pnrsh, Fl. 396. 1814. 



Ell. Sk. 2:. 589. Gray, Man. ed. 6, 5.j4. Chap. IT. 449. Wats. Hot. Calif. 2:201. 

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



Mexico. 



AUeghenian to Lonisianian area. Nova Scotia to Hritish C(duml)ia and coast of 

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



Alaisama: Coast plain. Opt-n mar.sLes, 8wam])s. Mobile County. Undoubtedl}' 

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

 marshes about Mobile. 



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



Herb. Gcol. Surv. Herb. Mohr. 



Sagittaria latifolia pubcsceiis (Mnhl.) .1. G. Smith, Mem. Torr. Club, 5:25. 1894, 



(Form c. .1. G. Smith, Kep. ^lo. Bot. Gard. 6:40.) Downy Ahkowiiead. 



Sagillarid pnhcscenn Miihl. Cat. S6. 1813. 



iS'. variahilla var. puhcsceiifi Engelm. Gray, Man. ed. 5, 555. 1856. 



Gray, Man. ed. 6, 555. 



Lonisianian area. Georgia, Florida. 



Alai5ama: Central Prairie region to Coast plain. In gently flowing water. Mobile 

 County, Mobile Pi^■er. 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 Molir, Bull. Torr. Club, 24: 19, t. JSO. 1897. 



Clammy Arrowhead. 

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

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

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

 l()be8 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, vi8(;id, free at the base, oblong-ovate, obtuse; sepals thick an<l like 

 the bracts papillose, glutinosc, ovate-lanceolate; stamens uumeious (20 to 25), fila- 



'.I. G. Smith, Revision of N. Araer. species of Sagittaria and Lophotocarpus, Sixth 

 Annual Report Mo. Bot. Gard. 1895. 



