Liatris.] ' COMPOSITE. 



303 



3. E, waculatum; foliis pctiolatis quaternis quinisve ovato-lanceclatis inasqualiter serratis 

 subtus pubescentibus, caule solido sulcato. — Linn, — WiUd^Sp, Pl.v, B,p. 1760. Pvrsh, FL 

 Am, V. 2,p, 314. Elliott, Carol, v, 2, p. 308. 



TIab. Canada. Pursh. — I have received nothing under the name of £. maculatum^ which was not at 

 once referable to E. purpureum, to which the E. verticillafum and punctatum of Willd. and the £!, ternifoliitm^ 

 Ell. {E. trifoliatum, Willd.) may probably be with safety added. 



4. E, perfoliatum ; involucre suboctofloro, foliis connato-perfollatis oblongo-acumiiiatis 

 crenato-serratis rngosis subtus pubescentibus, caule villoso, floribus parvis albis.- — Linn, 

 Willd, Sp, PL V, 3. p. 1761. Pursh, FL Am, v, 2. p, 516. Elliott, CaroL v, 2. p, 302. BigeL 

 FL Bost, ed, 2. v, 2, p, 297. Med, BoL v, \,t, 2, — E. connatum. Mich, Am. v, 2, p, 99. 



Hab. Throughout Canada. — A well-known bitter, and useful tonic. 



5. E, occidentale; glabriusculum, foliis alternis breve petiolatis ovatis acuminatis grosse 

 iuEequaliter serratis apice integerrimis summis lanceolatis integerrimis, floribus paniculato- 

 corymbosis, involucri pluriflori foliolis linearibus acutis laxis, acTieniis linearibus angulatis, 



caule striato. 



Hab. On the low hills between the north and south branch of Lewis and Clarke's River, in stony places. 

 Douglas.—" Two to four feet high. Flowers white." 



6. E, ageratoldes ; involucri subdecemflori foliolis uniserialibus sequalibus linearibus, 

 foliis lono-e petiolatis cordato-ovatis acuminatis trinervibus grosse serratis, corymbo divaricate 

 multifloro, caule glaberriino, floribus albls. — Linn. — Pursh, FL Am. v, 2, p, 516. Elliott, 

 CaroL v, 2. p. 303. BigeL FL Bost. ed, 2, p. 298. — E. urticse folium. Mich, Am, v, 2, p, 

 100. — Ageratum altissimum, Willd. (according to Pursh,) 



Had. Canada. Michaux, About Quebec. Mrs. Percival— This appears to be a rare species in Canada, 

 whence I have only received it from Mrs. Percival. In the single row of scales to the involucre, it assimi- 

 lates with the following genus. 



19. MIKANIA. Willd. 



Capitulum 4-florum. Pappus uniserialis, non plumosus. Coi; limbo campanulato. In- 

 volucrum ^-S-pbyllum, uniseriale. Receptaculum nudum. — Frutices vel Herbas Americani, 

 plerumque scandentes; foliis oppositis ; capitulis corymhoso-paniculatis. Less. 



1. M, scandens; glaberrima, scandens, foliis cordatis acuminatis subrepando-dentatis 

 lobis divaricatis insequalibus, cymis pedunculatis.— Jr?7/^. Sp, PL v. 3, p. 1743. Pursh, Ft. 

 Am. V, 2. p. 517. Elliott, CaroL v. 2. p, 292. BigeL FL Bost. ed. 2, p. 295.— Eupatorium 

 scandens. Linn,— Mich, Am. v, 2. p, 97. Jacq. Ic. Bar, v. 1. t 169. 



Hab. Canada, Mkhaux; probably in the extreme southern parts. I have never received specimens from 

 the British tenitories ; but it seems frequent in the adjoining New England States.— Lessing, who, however, 

 has kept up the Genus MiJtania iu his Synopsis, says it should be joined to Eupatorium. 



20. LIATRIS. Schreb. 



Pappus pluriserialis, plumosus. Cor, limbo a tubo non distincto. Involucrum nmltiseri- 

 ale. Receptaculum nudum.— Herbse Boreali-Americance, perennes, radice fibrosa vel tuber- 

 osa; Uus alternis, integerrimis, scepe angustis, glanduloso-punctatis ; cixpituWs mult ifior is, 

 spicatis vel corymhosis, corymUs imhricatis. Less. 



VOL. I. ^ ^ 



