COMPOSITE, (composite family.) 187 



middle, tapering to the hose, the lower slightly petioled ; scales of the short inro 

 lucre obtuse. (Leaves sometimes 3 in a whorl, or the upper alternate.) — Damp 

 soil, Virginia and southward. 



6. E. altissimuni, L. Stem stout and tall (3° -7° high), dovmy; leaves 

 lanceolate, tapering at both ends, conspicuously 3-nerved, entire, or toothed ahove the 

 middle, the uppermost alternate ; corymbs dense ; scales of the involucre obtuse, 

 shorter than the flowers. — Dry soil, Penn. to Wisconsin and Kentucky. — 

 Leaves 3' -4' long, somewhat like those of a Solidago. 



7. E. dlbum, L. Boughish-hairy (2° high) ; leaves oblong-lanceolate, coarse- 

 ly-toothed, veiny ; heads clustered in the corymb ; scales of the involucre closely 

 imbricated, rigid, narrowly lanceolate, pointed, white and scarious ahove, longer 

 them the flowers. — Sandy and barren places, pine barrens of New Jersey to Vir- 

 ginia and southward. 



8. E. teucrifdlium, Willd. Eoughish-pubescent (2° -3° high); leaves 

 ovate-oblong and ovate-lanceolate, obtuse or truncate at the base, slightly triple- 

 nerved, veiny, coarsdy toothed towards the base, the upper ones alternate ; branches 

 of the corymb few, unequal ; scales of the involucre obhng-lanceolate, rather obtuse, 

 at length shorter than the flowers. (E. verbeneefolium, Mcia;.) — Low grounds, 

 Massachusetts to Virginia and southward, near the coast. — Leaves sometimes 

 cut into a few very deep teeth. 



9. E. rotnndifdlinm, L. Downy-pubescent (2° high) ; leaves round- 

 ish-ovate, obtuse, truncate or slightly heart-shaped at the base,, deeply crenate- 

 toothed, triple-nerved, veiny, roughish (l'-2'long); corymb large and dense; 

 scales of the (5-flowered) involucre linear-lanceolate, slightly pointed. — Dry soil, 

 Rhode Island to Virginia, near the coast, and southward. 



10. E. puftescens, Muhl. Pubescent; leavesovate,mostly acute, slightly 

 truncate at the base, serrate-toothed, somewhat triple-nerved, veiny; scales of the 

 7 - S-flowered involucre lanceolate, acute. (E. ovatum, Bigd. ) — Massachusetts to 

 New Jersey, near the coast, and Kentucky. — Like the last, but larger; 



11. E. sessilifioliuni, L. (TIpland Boneset.) Stem tall (4° -6° 

 high), smooth, branching ; leaves lanceolate or ovate-lanceolate, tapering from near the 

 rounded sessile base to the sharp point, serrate, veiny, smooth (3' - 6' long) ; corymb 

 very compound, pubescent; scales of the 5- (or 5-12-%) flowered involucre oval 

 and oblong, obtuse. — Copses and banks, Massachusetts to Ohio, and southward 

 along the mountains. 



^- 4- H- Leaves opposite, clasping or united at the base, long and widely spreading : 

 heads 10-l5-flowered: cori/mbs very compound and large. 



12. E. resinosnm, Torr. Minutely velvety-downy (2° -3° high); leaves 

 linear-lanceolate, elongated, serrate, partly clasping at the base, tapering to the 

 point, slightly veiny beneath (4' - 6' long) ; scales of the involucre oval, obtuse. 



"VVet pine barrens, New Jersey. — Name from the copious resinous globules 



of the leaves. 



13. E. perfoliatuHi, L. (Thoroughwort. Boneset.) Stem stout 

 (2° -4° high), hairy; leaves lanceolate, united at the base around the stem (connatc- 

 perfoliate), tapermg to a slender point, serrate, very veiny, wrinkled, downy 



