EUPATORIUM. LXXV. COMPOSITE. 315 



late, tripli- veined, punctate, lower ones subserrate, tipper ones entire. A more 

 delicate species, smooth in all its parts, or minutely pubescent, in dry fields, 

 Mass. ! to La. Stem about 2f high, branching, with numerous narrow leaves, 

 which are mostly opposite, and a spreading corymb at the summit. Heads 

 5-flowered. Outer scales shortest, the others shorter than the purplish flowers. 

 Aug. Sept. 



6. E. LEUCOLEPIS. T. & G. (E. glaucescens. 0. kucolepis. DC. E. 

 linearifolium. MX.) St. mostly simple ; Ivs. lanceolate or linear, obtuse, 



closely sessile, serrate, lower ones obscurely tripli- veined ; corymb fastigiate, 

 canescent ; hds. 5-flowered ; scales 8 10, scarious at the summit, as long as the 

 flowers. Sandy fields, N. J. to La. Stem 2 3f high. Leaves 1 2J by \ f ', 

 glaucous-green both sides, divaricate with the stem, upper ones linear and en- 

 tire. Corolla dilated at mouth, with short, obtuse lobes, white. Aug. Oct. 



7. E. ALTISSIMUM. (Kuhnia glutinosa. DC.} Goldenrod Eupatorium. 

 St. pubescent-tomentose, tall, corymbose at the summit ; Ivs. lanceolate, 



acutely serrate above the middle, pubescence tapering to each end, subsessile, 

 conspicuously 3- veined ; hds. 5-flowered ; scales 8 12, obtuse, pubescent. 

 Woods and sandy soils, Penn. and Western States, Plummer! Stem round, 

 striate, 3 7f high. Leaves 3 4' by f ', much resembling those of Solidago 

 Canadensis ; small ones often fascicled in the axils. Corymb compound, con- 

 sisting of many simple, subcapitate ones. Corollas whitish, nearly twice as 

 long as the scales. Sept. Oct. 



8. E. ALBUM. (E. glandulosum. Michx.} White-flowered Eupatorium. 



St. pubescent ; Ivs. ovate-lanceolate, strongly serrate, sessile, scabrous or 

 pubescent, acute, obscurely 3-veined ; corymb fastigiate ; hds. 5-flowered ; scales 

 814, lance-linear, setaceously acuminate, scarious on the margin, and much 

 longer than the flowers ; ach. glandular. Sandy fields, Penn. to La. Stem 

 about 2f high, numerously divided above. Leaves 2 3' by 1', upper ones 

 entire and alternate. Involucre concealing the flowers, and with them copious- 

 ly sprinkled with resinous dots, whitish. Aug. Oct. 



9. E. TEUCRIFOLIUM. Willd. (E. verbenaefolium. MX. E. pubescens. Pers.) 

 Hairy Eupatorium. Lvs. opposite, sessile, distinct, ovate, rough, veiny, 



the lower ones doubly serrate, the upper ones subserrate or entire ; st. panicu- 

 late, pubescent, with fastigiate, corymbose branches above. Mass. ! to La. 

 Plant hairy, 2 3f high, with a somewhat panicled corymb of white flowers. 

 The upper leaves are often entire. Involucre 5-flowered, with twice as many 

 scales in two rows. Closely allied to the following, but is much- more rough. Aug. 



10. E. SESSILIFOLIUM. Sessile-leaved Eupatorium. 



Lrs. opposite, sessile, distinct, amplexicaul, ovate-lanceolate, rounded at 

 the base, very smooth, serrate ; st. smooth. Plant 2 4f high, in rocky woods, 

 Mass, to la. ! and Ga. Stem slender, erect, branching at top into a corymb 

 with white flowers. Leaves large, tapering regularly from the somewhat trun- 

 cate base to a long point, with small serratures, paler beneath. Flower-stalks 

 downy. Heads 5-flowered, with twice as many scales in two rows. Sept. 



11. E. ROTUNDIFOLIUM. Willd. Hoarhound. 



Lvs. opposite, sessile, distinct, roundish-ovate, subcordate at base, 3-veined 

 and veinleted, coarsely serrate, scabrous above, pubescent beneath ; hds. about 

 5-flowered, inner scales acuminate, as long as the flowers. A slender species, 

 in dry fields, N. J. and S. States. Stem 2 3f high, roughish. Leaves 1 2j' 

 long, | as wide, mostly obtuse. Heads fastigiate-corymbose. Involucre very 

 pubescent, outer scales shorter than the inner. Flowers white. Pappus longer 

 than corolla. Styles much exserted. Aug. Sept. 



12. E. PUBESCENS. Muhl. (E. ovatum. Bw.} Hairy Eupatorium. 



St. hirsute ; Ivs. opposite, sessile, ovate, acute, obtusely dentate, rough, 

 pubescent ; corymb fastigiate ; invol. about 8-flowered. A large, rough plant, 

 3 if high- growing in dry grounds, N. H. ! to Penn. Distinguished by its 

 opposite, broadly ovate leaves, and its strong pubescence. Involucre of about 

 12 pubescent scales, the outer much the shortest. Aug 

 27* 



