184 DICOTYLEDONOUS. 



opposite, upper ones alternate. lanceolate, serrate, towards the apex, entire 

 arid alternate at the base. Flowers in terminal corymbs ; involucre with the 

 interior leaves ligulate, the exterior small, all pubescent, dotted. Seeds angled ; 

 White. '2|-. September — October. Southern Georgia. 1-2 feet. 



11. E. ScABRiDUM. Stem pubescent, with the lower branches brachiate, 

 the upper ones alternate. Leaves sessile, ovate lanceolate, opposite, serrate 

 towards the summit, acute, and entire at the base Flowers in corymbs, invo- 

 lucre, with acute lanceolate leaves, dotted. Seed angled. 



White. %. Aug. — Oct. Dry soils, common. 2-3 feet. 



12. E. RoTUNDiFOLiUM. Stem pubescent. Leaves sessile, decussate, del- 

 toid, obtusely serrate, slightly scabrous, glaucus. Flowers in fastigiate corymbs ; 

 involucre with pubescent, acute scales. Seed angled ; pappus scabrous. 



Wild horehound. 

 White, % July — Sept. Dry pine barrens. 2-3 feet. 



13. E. Verben^folium. Stem erect, pubescent. Leaves sessile, decus- 

 sate, coarsely toothed, dotted, hairy on the under surface, somewhat deltoid. 

 Flowers in corymbs ; involucre with hairy, lanceolate leaves. Seed angled; 

 pappus scabrous. 



White. %. Aug. Sept. Damp soils. 2-3 feet. 



14 E. PuBEScENS. Stem erect, pubescent, lower branches opposite, upper 

 alternate, ieat-es sessile; ovate, alternate at the summit, obtuse at the base, 

 shghtly scabrous, the lower doubly senate and opposite, the upperslightly ser- 

 rate and alternate. Flowers in fastigiate corymbs ; involucre with hairy, li- 

 near-lanceolate leaves. Seed angled •, pappus scabrous. 

 White. %. Aug. — Oct. Sandy woods. 2-3 Ibet. 



15. E. CuNEiFOLiujM. Stein erect, pubescent. Leaves obovate, lanceolate, 

 petiolate, lower ones obtusely serrate, the upper with few serratures towards 

 the apex. Flowers in corymbs. Involucre 8 to 10 leaved. 



White. % August — September. 10-12 inches. 



(?).) I nvolucre many flowered. 



16. E. Perfoliatum. Stem erect, striate, villous, covered with glandular 

 dots, lower leaves perloliate, tapering from the base to the summit, serrate, 

 pubescent on the upper surface, tomentose beneath, the upper leaves distinct, 

 truncate at the base. Flowers in large corymbs. Involucre many leaved, with 

 acute, linear-lanceolate, pubescent leaves. Seed angular. Bone-set. 



White. %. Sept. — Oct. At Barhamville, near Columbia. 3-6 feet. 



17. E. Ceanothifolium. Stem erect, glabrous, or slightly pubescent. — 

 Leaves opposite, on short petioles, ovate-lanceolate, acuminate, toothed, slight- 

 ly scabrous, obtuse at the base. Flatvers in terminal corymbs. Involucre 

 with 10 nearly equal leaves, pubescent. Seeds angled. PwyjpMs plumose. 



White. '%. Sept.— Oct. In rich soils, low country. 2-3 feet. 



18. E. Ageratoides. Stem erect, glabrous. Leaves usually opposite, 

 ovate-lanceolate, acuminate, coarsely toothed, glabrous, on rather long peti- 

 oles. Flowers in corymbs. Involucre with 10 nearly equal leaves. Seeds 

 angled. P(77>7>7/ssliohtly scabrous. 



White. 1\.. Sept.— Oct. On jhe sea coast. 2-3 feet. 



19. E. Aromaticum. Stern erect, terete, finely pubescent. Leaves oppo- 

 site, cordate, ovate, acute, coarsely toothed, finely pubescent beneath. Flow- 

 ers in terminal corymbs. Involucre wiih 10 nearly equal leaves. Seed angled. 



White. %. Fragrant. Aug. — Oct. Dry, rich soils. 2-3 feet, 



20. E. ScEROTiNUM. Stem erect, almost tomentose. Xfa?;e.!> ovate-lanceo- 

 late, large, tapering towards the summit ; the lower ones opposite, the upper 

 alternate, on rather long petioles. Flowers numerous, in fastigiate corymbs. 

 Involucre with 10 linear, villous leaves. Seeds angled. Pappus scabrous. 



White. ^1-. Sept.— Oct. On the sea coast. 5-6 feet. 



21. E. Incarnatum. S^e?^ erect, very finely pubescent. Leaves opposite* 

 on long petioles, cordate, deltoid, obtusely toothed. Flowers in terminal 



