COMPOSITE. J97 



HAB. Banks of streams. N. Y. to Virg. W. to Miss. Aug 



Oct. 1. Stem 2 4 feet high, solid. Flowers in a large co 

 rymb, purple. 



13. E. sessilifolium Linn. : stem nearly smooth ; leaves sessile, 

 clasping, distinct, ovate-lanceolate, round at base, serrate, very smooth. 



HAB. Rocks on mountains. Mass, to Car. Aug., Sept. 2f.. 

 Stem obscurely angled. Leaves opposite, but not connate, mi- 

 nutely dotted beneath. Flowers in a terminal corymb, white. 



14. E. truncatum Muhl. : stem pubescent ; leaves sessile, clasping, 

 distinct, lanceolate, truncate at base, serrate, nearly smooth. 



HAB. Shady 'woods. Penn. to Car. July Sept. If.. Stem 

 slightly hairy. -Very similar to E.. sessUi/olwm, yet sufficiently 

 distinct by a stem pubescent ; leaves truncate at base, the serra- 

 tures larger and more obtuse, and the involucre 'more pubescent. 



mud. 



15. E. album Linn- ,- leaves nearly sessile, oblong-lanceolate, some- 

 what scabrous, serrate ; the inner scales of the involucre long, lanceo* 

 late, scarious, white. JE. glandulosum Mich. 



HAB. Woods. Penn. to Car. Aug. Oct. ll.rStem erect, 

 1 1-2 2 feet high, villous. Involucre with glandular dots. Flow- 

 ers' in fastigiate corymbs, whits. 



** Involucre many-flowered, 



16. E, purpureum Linn. ; stem smooth and glaucous, hollow ; leaves 

 petiolate, in fours or fives, ovate-lanceolate, serrate, rugose-veiried, 

 somewhat scabrous. , : ' ^.^ 



HAB. Wet woods. Can. to Virg. Aug. Oct. 21. Stem 

 5 6 feet high, purplish. Floio&rs in a large terminal corymb, 

 pale purple. 



17. E. maculatum Linn. : stem solid, furrowed ; leaves petiolate, in 

 fours or sixes, ovate-lanceolate, unequally serrate, pubescent beneath. 



HAB, Low grounds. Can. to Car. Aug. Oct. It. Stem 4 5 

 feet high, furrowed and dotted with purple. Leaves pubescent 

 and slightly scabrous beneath. Involucre 5 8-flowered ; corol 

 purplish. 



18. E. verticillatum Muhl. : stem solid, smooth ; leaves petiolate, in, 

 threes or fours, ovate-lanceolate, acuminate at each end, unequally ser- 

 rate, nearly smooth. E. purpureum Mich. 



HAB. Low grounds. N. Y. to Car. Aug.. Oct. Z(. Stem 

 4 6 feet high, tinged with purple. Leaves large, smooth, dot- 

 ted beneath. Flowers'in. a terminal corymb, purple. 



19. E. punctatum Willd. : stem solid, terete ; leaves petioled, in fours 

 or fives, ovate, acuminate, serrate, scabrous on both sides. 



HAB. Mountains. N. J. and Penn. Aug. Oct. Z. This 

 plant is described by Pursh as Hot so tall as the preceding 

 with the flowers purple and very ornamental. It may be only a 

 variety. 



17* 



