EuPATORiUM. LXXV. COMPOSITE. 315 



late, tripli-veined, punctate, lower ones subserrate, upper oiies entire. — A more 

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

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

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

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

 Aug. Sept. 



6. E. LEUcoLEPis. T. & G. (E. glaucescens. p. IcucoJcpis. DC. E. 

 linearifolium. Mx.) — St. mostly simple ; Its. lanceolate or linear, obtuse 



closely sessile, serrate, lower ones obscurely tripli-veined; corymb fa'stigiate' 

 canescent; Ms. 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 U — 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) GoUcnrod Eupatorium. 

 S/. pubescent-tomentose, tall, corvmbose 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, Phimmcrl Stem round, 

 striate, 3—71' high. Leaves 3—4' by \—\', much resembling those of Solidago 

 Canadensis ; small ones often fascicled in the axils. Cor3qnb compound, con- 

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

 long as the scales. Sept. Oct. 



8. E. ALBUM. (E. glandulosum. ATichx.) White- flmcered Eupatorium. 



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

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

 8 — 14, 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 J — 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. WiUd. (E. verbensefolium. Mx. E. pubescens. Pers.) 

 Hairy Eupatorimn. — 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. Scssile-leaved, Eupatoriiivi. 



Lvs. 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 serratiires, paler beneath. Flower-stalks 

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



11. E. ROTUNDiFOLiUM. Willd. Hoarhmmd. 



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

 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 — 2§' 

 long," I 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. Bic.) Hairy Eupatorium. 



S/. hirsute; /ix opposite, se.ssile, 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* 



