7()4 I'LANT 1.1 KK <»K ALAIUMA, 



Tliis variulilo 8p«>cios (•oiiiprisos two foiiiiH whic.li :irc cliisoly (MuniccttMl by iiitor- 

 nii'iliato luriiiH ;iihI ilifiinilt to scpiiratr, aUlioii<;li tlic extnuiif forms (Voiii tlu; inoiiii- 

 taiii n'j;iuii appear <|uit<' distinct liy flu- prtiolato, Itroader, Irss acmiiiiiat<\ and iiioif, 

 roaiscly senute leaves. From the material eNamiued in tiie National Ih^rliarinm 

 tiiis form appears to ])revail in thei Northern States. SpeiimciiH from the roast ])ine 

 liarreiis au:r<e exactly with the (U'S(ri])tion of .Michaiix, havin<r Die stem di\iile(l 

 alio\ e into lon<j. slender, few-lea xcd fasti.ni.ite branches liearin;^ a ratlier close coryndi, 

 and the acuminate Iea\ is with t he trnncate base sessile. May prove a, jrood variety. 



'I'yjx' locality: "llali.in ]nimi<lis Carolinae."' 



llorb. (ieol. Snrv. Herb. Mohr. 



Eupatoriiun rotundifolium L. Sp. PI. 2 : 8S7. 1753. FAi,.«iK IIoai;iu)IM». 



F.ll. .Siv. 2 : :;(!(). (Jrav. Man. ed. G, 240. ("hap. Fl. 1%. Gray, Syn. Fi. N. A. 1, \>t. 2: 

 t);». ("onlter, (dntr. Nat. llerl). 2: 178. 



Carolinian and Lonisianian areas. \ew Jersey to Morida. west to Texas; Ohio 

 Valley to Missouri and Arkansas. 



Ai.a15a.ma: Over the State. Open dry {ground. Clay County, .Shinbonc \ alley, 

 Elders, 1,000 feet. Cullman County, J^OO feet altitude. Mobile County. Flowers 

 white; Auj^ust, Sejitember. 



Type locality : " Hab. in Virginia, < auiida.'' 



Herb. Geol. Snrv. Herb. Mohr. 



Eupatorinm pubescens Muhl.; Willd. Sp. PI. 3 : 17."m. 1804. 



Eupatorium rotimdifoUum var. ovatinn Torr. ; DC. Prodr. 5 : 178. 18.%. 



E. rolundifoUnm var. piihencetis B. S. P. Prel. Cat. \. Y. 2i>. 1888. 



Ell. Sk. 2": HOI. Gray, .Nlan. ed. (5, 240; Syn. Fl. X. A. 1, pt. 2 :;>!!. 



Carolinian and Lonisianian areas. Southeastern New Enj^land to soutlierii \'ir- 

 ginia and Florida, west to Mississipjii. 



Alah.v.ma: Mountain region to Coast ])lain. Open damp places. Lee County, 

 Auy^UTu {Jiaker if- Earl e). Mobile County. Flowers whitt^; August. l're(|uent. 



Type locality : " Hab. in America lioreali." 



Herl). (;eol. Surv. Herb. Mohr. 



Eupatorium se.ssilifolium L. Sp. PI. 2 : X37. 17.")3. Ui'I.an'd Honkskt. 



Kiipatonum truncatum Ell. Sk. 2 : 298. 1821-24. Not Muhl. 



Gray, Man. ed. «, 240. Chai>. Fl. 19.5. (ir.iy, Syn. Fl. N. A. 1, i)t. 2 : 99. 



Alleghenian and Carolinian areas. New England, northwestern New York?, 

 northeastern Ohio, Michigan, Missouri, south from \'irginia along the mountains to 

 South Carolina. 



Alabama: Mountain region. Dry open woods; tabhvlands of Warrior liasin. 

 Dekalb County, Sand Mountain, 1,.5()0 feet. Flowers white; .Vugust, Sei»tember. 

 Rare. 



Type locality : " Hab. in Virginia.'" 



Herb. Geol. Surv. Herb. Mohr. 



Eupatorium perfoliatum L. Sp. PI. 2 : 838. 1753. Bonkskt. Thokoihjiiwort. 



Kll. Sk. 2 : :;02. ( iray, Man. ed. 6, 241. Chap. Fl. 196. Gray, Syn. Fl. N. A. 1, pt. 2 : 99. 



Alleghenian to Lonisianian area. Nova Scotia, New i'.runswick, Ontario: Kew 

 England, west to Minnesota, Nebraska, and Dakota, .south to Arkansas; and from 

 the Ohio Valley to Florida, and west to Louisiana. 



Alabama: Over the State. Damp shady banks; thickets. Clay County, Elders, 

 1,000 feet altitude, to Mobile; borders of river swamps. Flowers white; .July to 

 September. Fre(|ueht. 



Economic uses: The herb is the boneset or Eupatorium of the United States 

 I'La •macopo'ia. 



Type locality : •' Hab. in X'irginiae afjuosis.'' 



Herb. Geol. Surv. Herl>. .Mohr. 



Eupatorium incarnatum Walt. Fl. Car. 200. 1788. Dii'itsk EtTPATOUirivi. 



Ell. Sk. 2: 30.5. Chap. Fl. 190. (Jray, Syn. Fl. N. A. 1, pt. 2: 101. Coulter. Contr. 

 Nat. Herl I. 2:179. 



Lonisianian area. North Carolina to Florid.i. west to western Louisiana :ind 

 Texas. 



Alabama: Lower hills. D.imp thickets. liiscaloosa County. Flowers azure. 

 .Inly; 2 to 3 feet high; weak, reclining local. ( tnly locality observed. .Inne, 1883 



(C.Mohr). 



Tyjie locality : South (^.irolin.i. 

 I ierl(. ( icoi. .Sur\ . llcrli. .Mohr. 



