240 coMPOSiT.E. (composite family.) 



iml)ricatecl, rigid, narroAvly lanceolate, /o;?^er than the flowers. — Sandy and 

 barren places, pine barrens of Long Island to Va., and southward. 



Var. subvenosum, Gray. Less rough; leaves 1 - 2' long, finely toothed 

 and less veiny. — Long Island and N. J. 



5. E. leucolepis, Torr. & Gray. Minutely pubescent, simple (1-2° high) ; 

 Icaces linear -lanceolate, closehj sessile, \-nerved, obtuse, minutely serrate, roiujh 

 both sides ; corymb hoary. — Sandy bogs, Long Island, N. J., and southward. 

 = = Scales not scarious or ohscurelij so, obtuse, at length shorter than thejloicers. 



6. E. hyssopifolium, L. Minutely pubescent (1-2° high); leaves 

 narrow, linear or lanceolate, elongated, obtuse, I -3-nerved, entire, or the lower 

 toothed, often crowded in the axils, acute at the base. — Sterile soil, Mass. to 

 Va., E. Ky., and southward. 



Var. laciniatum, Gray. Leaves irregularly and coarsely toothed or 

 laciniate. — Penn., Ky., and southward. 



7. E. semis erratum, DC. Minutely velvety -pubescent, branching (2 - 

 3° high) , leaves lanceolate or oblong, triple-ribbed and veiny, serrate above the 

 middle, tapering to the base, the lower slightly petioled ; heads small. (E. par- 

 viflorum, Ell.) — Damp soil, Va. to Ark., and southward. — Leaves sometimes 

 whorled in threes, or the upper alternate. 



8. E. altissimum, L. Stem stout and tall (3-7° high), downy; leaves 

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

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

 obtuse, shorter than the flowers. — Dry soil, Penn. to Minn, and Ky. — Leaves 

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



^_ H_ H- .;- Le'ires sessile or nearly so, with a broad base, opposite or in threes ; 



heads pubescent. 



= Heads 5 - 8-Jloicered ; leaves not clasping. 



9. E. teucrifolium, Willd. Roughish-pubescent (2-8° high); leaves 

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

 nerved, veiny, coarsely toothed or incised toward the base, the lower shortly peti- 

 oled, the upper alternate; branches of the corymb few, unequal; scales of the 

 involucre oblong-lanceolate, at length shorter than the flowers. — Low grounds, 

 Mass. to Va., and southward near the coast. 



10. E. rotundifblium, L. Downy-pubescent (2° high) ; leaves roundish- 

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

 triple-nerved, veiny, roughish (1-2' long) ; corymb large and dense ; scales of 

 the (b-fowered) involucre linear-lanceolate, slightly pointed. — Dry soil, R. I. to 

 Va., near the coast, and southward 



Var. ovatum, Tt)rr. L'sually taller , leaves ovate, acute, hardly truncate 

 at base, more strongly serrate; heads 5 -8- flowered. (E. pubescens, J/»/i/.) 

 — Mass. to Va., near the coast. 



11. E. sessilifolium, L. (Upland Boxeset.) Stem tall (4-6° high), 

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

 rounded sessile base to the shai-p point, serrate, veiny, smooth (3 - 6' long) ; co- 

 rymb very compound, pubescent; scales of the 5-flowered involucre oval and 

 oblong, obtuse. — Copses and banks, Mass. to III., and southward along the 

 mountains 



