OKUEK 70. COMPOSITE. 159 



2 K. coroiiopll'olium Willd. Much branched, pubescent ; leaves mostly alternate 



(the lower opp.), twice pinnatifid, with lance-linear lobea and segm., the upper linear, 

 simple ; hds. 5-flowered, scales 10. Dry soils, S. 3 5f. Flowers white, 2". 



3 li. plimatifidum Ell. Pubescent: Ivs. laciniate-pinnatifld, segm. linear, toothed 



or entire, the lower whorlcd in 4's, middle opp., upper altern. ; corymb fastigiate ; 

 lids, small, GO, 5-9-flowered ; scales oblong, mucronate. Pine woods, 8. 3 4f. 



4 IS. ivH-loliiiin L. Lvs. opposite, lanceolate, tapering to each end, 3-veiued; heads 



pedicellate, 15-20-flowered ; scales 20, imbricated, erect, obtuse, with 35 distinct 

 stri*. Woods, Miss, and Fla. 3 5f. Blue. 



5 E. purpureum L. Stem solid, purple at the joints ; Ivs. feather-veined, in whorls 



of 3's 5's, thin, ovate to lanceolate, coarsely serrate. Dry. 3 6f. 



6 E. fistulosum Barratt. Trumpet-weed. Stem hollow, striate, glabrous, glaucous- 



purple ; Ivs. lance-oblong, in 5's, 6's, finely serrate ; corymb globous, with whorled 

 rays. Thickets. 6 lOf. Lvs. &. Corymbs If. (E. purpurenm. /3. T. & G.) 



7 E. niaciil.ttiiiii L. Stem solid, marked with purple glands and lines ; leaves :-:- 



veined, ovate, in 3's 5's. Low grounds: common. 3 5f. (E. purpureum. /3. Darl.) 



S E. Bcabridum Ell. ? (Chapm.) St. stout, tomentous ; Ivs. lance-ovate, acute, ser., 



3-veined from base ; scales lance-obi., cuspidate, edged, shorter than fls. Car Fla. 2f. 



9 E. album L. Rough-downy; Ivs. lance-oblong, acutish; hds. oblong, 5-lluwered ; 



scales white-scarious at the point, longer than the fls. Sands, N. J. and S. 2f. 



10 E. leucolepis T. & Q. Nearly smooth ; Ivs. lance-linear, obtuse ; heads 5-flwd. ; 

 scales white-scarions at the tip, as long as the fls. Sands, L. I. and S. 2 3f. 



HE. liyssoplfolium L. Lvs. linear-lanceolate, 1-3-veined, punctate, lower ones 

 subserrate, upper ones entire ; scales Oval. Dry. Mass., W. and S. 2f. Hds. 3". 



1 2 E. parvlflorum Ell. Lvs. lanceolate, sessile, acutely serrate above, 3-veined ; 

 heads 2", crowded ; outer scales very short, inner linear. Damp. Va. to Fla. 2 3f. 



13 E. altisslmum L. Tall, downy; Ivs. lanceolate, few-toothed above, conspicu- 

 ously 3-veined ; scales 812, elliptical, 2f": fls. 5". Dry. Pa. to Car., and W. 3 7f. 



14 E. cunclfollum Willd. Downy; Ivs. small, glaucous, obovate-oblong. 3-veined. 

 apex obtuse and subserrate ; scales oval. 2" ; fls. 4". Rich shades, S. Car. to Fla. 2f . 



1 5 E. teucrlfulium Willd. Rough-downy ; leaves sessile, ovate, veiny, the low r 

 doubly serr. ; scales elliptical, faintly striate, rather acute. Damp. Mass, to La. 2 3f. 



16 E. sessllIl'oHum L. Smooth: leaves half-clasping, lance-ovate, serrate; inner 

 scales oblong-obovate, obtuse. Rocky woods, Mass, to Ind., and S. 2 -If. Lvs. 35' 



17 E. rotuudlfolium Willd. Hoarhmmd. Downy; Ivs. roundish ovate, subcor 

 date, 3-veined, sessile, coarsely toothed ; inner scales acuminate, as long as the fls. Dry 

 fields, N. J. and S. A compact, bushy plant. 3f. 



18 E. mlkaiiloides Chapm. St. creeping at base, ascending ; Ivs. deltoid, truncate 

 at base, petioles subconnate ; scales lanceolate, acute. Isl. St. Vincent, Fla. 1 2f. 



19 E. pub&scens Muhl. Hairy; Ivs. distinct, sessile, ovate, acute, blunt-toothed; 

 hds. about 8-flwd. ; scales lanceolate, acute, short. Dry. N. H. to N. J., and Ky. 3 4f. 



20 E. realnosum Torr. Viscid-resinous ; leaves distinct, closely sessile, lin. -lanceo- 

 late, long-pointed ; hds. 10-15-flwd. ; scales obtuse, white-downy. Barrens, N. J. 2-3f. 



21 E. iMTi'oli.iUim L. Thormighwort. honeset. Hairy; Ivs. lanceolate, each pan 

 united at base around the stem; heads about 12-flowered, in a large, dense corymb; 

 scales lance-oblong, acute. Low grounds : common. 3 4f. A powerful tonic. 



22 E. serotinnm MX. Soft-puberuleut ; Ivs. petiolate. lance-ovate, sharp-serrate, 3- 

 veined ; hds. 12-15-flwd. ; scales 9 11, similar, very downy, obtuse. Md., S. and W. 5f. 



23 E. ageratoides L. Smooth ; Ivs. long-petiolate, ovate, acuminate, sharp-serr., 

 3-veined ; hds. 10-20-flwd., in a compound corymb ; scales oblong, obtuse. Woods. 3f. 



24 E. a romut iciim L. Rough-downy ; Ivs. petiolate, lance-ovate, acute, 3-veined, 

 blunt-serr. ; hds. 10-15-flwd., hi small corymbs ; scales lance-linear. Low woods. 2f. 



25 E. lucarimtum Walt. Diffusely branched ; leaves long-petioled. deltoid-ovate, 

 pointed, coarsely crenate-dentate ; hds. on slender ped., 15-20-flwd. ; scales lin.-subu 

 late, 3-striate ; lobea of the corolla pale purple. Damp soils, N. Car. to Fla. 3f. 



