416 Okdbr to.— composite. 



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

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

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

 pound pyramidal panicle of innumerable hds. Fls. yellowish-white, littlo more 

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



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

 (tho lower opposite), the lower twice pinnalifid with lance-linear hies 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 

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

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

 No. 1? 



3 B. pinnatifidum Ell. Pubescent ; lvs. laoiniate-pinnatifld, 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 4£ Hds. about the size of No. 2, to which 

 this species is evidently related. 



4 B. ivaefolium L. St. teret(^, branched ; Iva. opposite, lanceolate, tapering to 

 oaoh 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 B. purpiireum L. (not of Willd., Ph., nor DC.) St. solid, green, or sometimes 

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

 whorls of 33, 43 and 5s (rarely in 2s), ovate, smooth above, downy on the vci-ns 

 beneath, coarsely serrate. — Dry woods and meadows, common. St. 3 to 6f high. 

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

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



/3. TERNiFOHuii. St. soHd, slender, green, with a purple blush ; lvs. in Ss, 

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



6 B. macul^tum L. Purple Bonesbt. 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 ; lvs. tripli-veined, 

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

 Lvs. petiolate, 6 to t' by 3 to 4', usually pointed, strongly serrate. Pis. purple. 

 JL, Sept. (E. pm-pureum /3. Darl) 



/3. nuTioiFOLiuM Barratt. Slender ; Its. thin, much elongated, — height 4 to 5£ 



7 E. fistulosum Barratt. Trumpet Weed. St. fistulous, glabrous, glaucous- 

 purple, striate or fluted ; lvs. dblong-Tanceolate, in whorls of Zs or 6s, largest in the 

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

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

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

 petioles, 8' by 2'. Corymb often If di^m. It does not appear to posses tho acrid 

 properties of E. maculatum. Jl. — Sept. (B. purpureum WUld. in part. ji. an- 

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

 tills species and the two preceding numbers a grave question. 



8 E. dlbum L. Scabrous-pubescent; lvs. oblong-lanceolate, strongly serrate, ses- 

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

 6-flowered; scaks 8 to 14, lance-linear, tipped with a white, scarious acumination, 

 longer than the fls. ; cyps. glandular. — Sandy soils, Pehn. to La. St. about 2f 

 high, corymbously divided above. Lvs. 2 to 3' by j to 1', upper ones entire and 

 alternate. Invol. concealing the fia., 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; lvs. linear-lanceolate, 

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

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

 mit, as long as the fl^. — Sandy fields, N. J. to La. St. 2 to 3f high. Lv.s. IJ to 

 to 2 J' by J to J', glaucous-green both sides, divsiricate with the stems, upper oftoa 



