764 PLANT LIFE OF ALABAMA. 
This variable species comprises two forms which aro closely connected by inter- 
mediate forms and difficult to separate, although the extreme forms from the moun. 
tain region appear quite distinct by the petiolate, broader, less acuminate, and more 
coarsely serrate leaves. From the material examined in the National Herbarium 
this form appears to prevail in the Northern States. Specimens from the coast pino 
barrens agree exactly with the description of Michaux, having the stem divided 
above into long, slender, few-leaved fastigiate branches bearing a rather closecorymb, 
and the acuminate leaves with the truncate base sessile. May prove a good variety. 
Type locality: ‘Hab. in humidis Carolinae.” 
Herb. Geol. Surv. Herb. Mohr. 
Eupatorium rotundifolium L. Sp. Pl. 2: 837. 1753. FaisrE Hoarnounn, 
Ell Sk, 2:300. Gray, Man.ed. 6,240. Chap. F1.195. Gray, Syn. Fl.N.A.1, pt. 2: 
99. Coulter, Contr. Nat. Herb. 2: 178. 
Carolinian and Louisianian areas, New Jersey to Florida, west to Texas; Ohio 
Valley to Missouri and Arkansas. 
ALABAMA: Over the State. Open dry ground. Clay County, Shinbone Valley, 
Elders, 1,000 feet. Cullman County, 800 feet altitude. Mobile County. Flowers 
white; August, September. 
Type locality: ‘Hab. in Virginia, Canada.” 
Herb, Geol. Surv. Herb. Mohr. 
Bupatorium pubescens Muhl.; Willd. Sp. Pl. 3:1755. 1804. 
Eupatorium rotundifolium var. ovatum Torr.; DC. Prodr. 5:178. 1836. 
E rotundifolium var. pubescens B.S. P. Prel. Cat. N. Y.25. 1888. 
EM. Sk.2:301. Gray, Man. ed. 6,240; Syn. Fl.N.A.1, pt.2:99. 
Carolinian and Louisianian areas. Southeastern New England to southern Vir- 
ginia and Florida, west to Mississippi. 
ALABAMA: Mountain region to Coast plain. Open damp places. Lee County, 
Auburn (Baker § Earle). Mobile County. Flowers white; August. Frequent. 
Type locality: ‘‘ Hab. in America boreali.” 
Herb. Geol. Surv. Herb. Mohr. 
Eupatorium sessilifolium L. Sp. Pl. 2:837. 1753. UPLAND BONESEt, 
Eupatorium truncatum Ell. Sk. 2: 298. 1821-24. Not Muhl. 
Gray, Man. ed. 6,240. Chap. F1.195. Gray, Syn. FIN. A. 1, pt. 2:99. 
Alleghenian and Carolinian areas. New England, northwestern New York?, 
northeastern Ohio, Michigan, Missouri, south from Virginia along the mountains to 
South Carolina, 
ALABAMA: Mountain region. Dry open woods; table-lands of Warrior Basin. 
Pls County, Sand Mountain, 1,500 feet. Flowers white; August, September. 
are. 
Type locality: ‘Hab. in Virginia.” 
Herb. Geol. Surv. Herb. Mohr. 
Eupatorium perfoliatum L. Sp. Pl. 2: 838. 1753. BonrsEetT. THOROUGHWORT. 
Ell. Sk. 2:302. Gray, Man. ed. 6, 241. Chap. Fl. 196. Gray, Syn. FI. N. A. 1, pt. 2:99. 
Alleghenian to Louisianian area. Nova Scotia, New Brunswick, Ontario; New 
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. Frequent. 
Economic uses: The herb is the boneset or Eupatorium of the United States 
Pha-macopcia, 
Type locality: ‘ Hab. in Virginiae aquosis.”’ 
Herb. Geol. Surv. Herb. Mohr. 
Eupatorium incarnatum Walt. Fl. Car. 200. 1788. Dirruse EvpPaToRIumM. 
eee in Chap. F1.196. Gray, Syn. Fl. N. A. 1, pt. 2:101. Coulter, Contr. 
" Louisianian area. North Carolina to Florida, west to western Louisiana and 
exas. 
ALABAMA: Lower hills, Damp thickets. Tuscaloosa County. Flowers azure. 
July; 2 to 3 feet high; weak, reclining local. Only locality observed. June, 1883 
(C. Mohr). 
Type locality: South Carolina. 
Herb, Geol. Surv. Herb. Mohr. 
