416 ORDER 70. COMPOSITE. 



upper setaceous, simple, fascicled; hds. small, very numerous, 3 to 5-flowered, on 

 short pedicels ; scales 8 to 10, mucronate. A common weed, in fields and damp 

 soils, Va. to Fla. St. 3 jtx> lOf high, bearing innumerable fine cut Ivs. and a com- 

 pound pyramidal panicle of innumerable hda Fls. yellowish-white, little more 

 than 1" long. Lvs. often channeled on the upper side. Sept., Oct. 



2 E. coronopifolium Willd. Much branched, pubescent; Ivs. mostly alternate 

 (the lower opposite), the lower twice pinnatifid with lance-linear lobes and segments ; 

 upper Ivs. linear, fascicled; hds. small, very numerous, 5-flowered; scales 10, 

 with scarious margins and cuspidate points. In dry, thin soils, N. Car., Ga. to 

 Fla., common, St. 3 to 5f high. Lvs. and fls. immensely numerous, as in No. 1. 

 Fls. white, about 2" long. Panicle often 2f long. Sept., Oct. Distinct from 

 No. 1? 



3 E. pinnatifichim Ell. Pubescent ; Ivs. laciniate-pinnatifid, segm. linear, toothed 

 or entire, the lower whorled in 4s, middle opposite, upper alternate ; hds. small, 

 numerous, 5 to 9-flowered, in a fastigiate corymb ; scales oblong, mucronate. 

 Pine barrens, Car. to Fla. Height 3 to 4C Hds. about the size of No. T, to which 

 this species is evidently related. 



4 E. iveefcliTim L. St. terete, branched; Ivs. opposite, lanceolate, tapering to 

 each end, subsessile, subserrate, 3-veined; hds. pedicellate, 15 to 20-flowered ; 

 scales 20, imbricated, the outer gradually shorter, all erect, obtuse, with 3 to 5 dis- 

 tinct strice. Woods, near N. Orleans. Herb 3 to 6f high. Lvs. 2 to 3' long. 

 Florets light blue, in a few large, corymbed hds. Aug., Sept. 



5 E. purpureum L. (not of Willd., Ph., nor DC.) St. solid, green, or sometimes 

 purplish, with a purple band at the joints about 1' wide; Ivs. feather-veined, in 

 whorls of 3s, 4s and 5s (rarely in 2s), ovate, smooth above, downy on the veins 

 beneath, coarsely serrate. Dry woods and meadows, common. St. 3 to Gf high. 

 Lvs. large, thin, 8 to 10' by 4 to 5'. Corymb lax, pale purple, varying to whitish. 

 Aug., Sept. (E. trifoliatum Darl.) 



(3. TERNIFOLIUM. St. solid, slender, green, with a purple blush ; Ivs. in 3s, 

 very thin, lanceolate. Mountain woods, etc. Height about 3f. 



6 E. maculatum L. PURPLE BONESET. St. solid, striate, hispid or pubescent, 

 greenish and purple, with numerous glands and purple lines, the glands on the 

 stems and leaves give out an acrid effluvium in flowering time ; Ivs. tripli-ve-ined, 

 3 to 5 in a whorl, ovate. Low grounds, U. S. and Can. Herb 4 to 6f high. 

 Lvs. petiolate, 6 to 7' by 3 to 4', usually pointed, strongly serrate. Fls. purple. 

 Jl., Sept. (15. purpureum /?. Darl.) 



J3. TJRTICIFOLITJM Barratt. Slender ; Ivs. thin, much elongated, height 4 to 5f. 



7 E. fistulosum Barratt TRUMPET WEED. St. fistuloiis, glabrous, glaucous- 

 purple, striato or fluted ; Ivs. oblong-lanceolate, in whorls of 5s or Gs, largest in the 

 middle of tho stem, rather finely glandular serrate, midvein and veinlets livid- 

 purple ; corymb globous, with whorled peduncles. A majestic herb, thickets, 

 U. S. and Can. Height 6 to 10 hollow its whole length. Lvs. including the 1' 

 petioles, 8' by 2'. Corymb often If diam. It does not appear to posses the acrid 

 properties of E. maculatum. Jl. Sept. (E. purpureum Willd. in part. /?. an- 

 gustifolium T. & Gr.) Intermediate forms occur, rendering the distinctions of 

 this species and the two preceding numbers a grave question. 



8 E. album L. Scabrous-pubescent; Ivs. oblong-lanceolate, strongly serrate, ses- 

 sile, rather acute, obscurely 3-veined ; corymb fastigiate ; hds. clustered, oblong, 

 5-flowered ; scales 8 to 14, lance-linear, tipped with a white, scarious acumination, 

 longer than the fts. ; cyps. glandular. Sandy soils, Penn. to La. St. about 2f 

 high, corymbously divided above. Lvs. 2 to 3' by to I', upper ones entire and 

 alternate. Invol. concealing the fls., and with them copiously sprinkled with 

 resinous dots, whitish. Aug. Oct. (E. glandulosum MX.) A variety has the 

 leaves rather obtuse and crenate. (Tenn.) 



9 E. leucolepis Torr. & Gr. Nearly glabrous ; st. simple ; Ivs. linear-lanceolate, 

 obtuse, closely sessile, serrate, lower ones obscurely tripli-veined ; corymb fasti- 

 giate, canescent; hds. 5-flowered; scales 8 to 10, scarious and white at the sum- 

 mit, as long as the fls. Sandy fields, N. J. to La, St. 2 to 3f high. Lvs. \\ to 

 to 2 J' by \ to f ', glaucous-green both sides, divaricate with the stems, upper ones 



