330 COMPOSITE. EuPAToRiuK. 



Stem 2-3 feci higli, usually a lilllc branched above. Leaves 3-5 inches long and 2-3 

 inches wide, obluse or truncate, or abruptly tapering at the base ; the petiole 1-2 inches 

 long: corymb compound. Heads usually 12 - 15-flowcred. Flowers pure while, somewhat 

 fragrant. Corolla narrowed below, campanulatc at the summit ; the lobes ovale, smooth. 

 Style much exserted. 



Moist woods and thickets, in rich soil ; common. August - September. 



8. EuPATORiuM AROM.-vTicuM, Linn. Sweet-scented Hemp-weed. 



Pulverulent-pubescent ; stem branching at the summit ; leaves on short petioles, or some- 

 times almost sessile, ovate or ovate-oblong, somewhat cordate, acute but scarcely acuminate, 

 triply nerved, of a thickish and firm texture, mostly roughish-pubescent, coarsely and rather 

 obtusely serrate ; heads mostly 12 - 15-flowered ; scales of the involucre linear-lanceolate, 

 pubescent, with slightly scarious and rather obtuse tips. — Linn. sp. 2. jj. 839; Willd. sp. 3. 

 p. 1765 ; Micha:. Jl. 2. p. 100; Pursh, Jl. 2. p. 516 ; Ell. sk. 2. p. 304 ; Bigel. fl. Bost. 

 p. 298 ; Beck, hot. p. 198 ; BC.prodr. 5. p. 175 ; Darlingt. jl. Cest. p. 452 ; Torr. ^ Gr. 

 fl. N. Am. 2. p. 90. E. cordatura, Walt.fl. Car. p. 199 ; DC. I. c. E. melissoides, Willd. 

 t. c. p. 1754. E. ceanothifolium, Muhl. in Willd. I. c. ; DC. I. c. 



Stem 1 J - 3 feet high, slender, corymbose at the summit. Leaves 2-3 inches long (rarely 

 3 in a whorl) ; the veins prominent underneath ; lower ones often cordate : petiole 1-5 lines 

 long. Corymb with fewer heads than in the preceding species. Flowers somewhat fragrant. 



Dry sandy thickets ; about half a mile from the South Ferry, Brooklyn, Long Island. 

 August - September. This species can be distinguished from E. ageratoides by its pubescent 

 stem, smaller and thick leaves and short petioles. 



4. MIKANIA. Willd. sp. 3. p. Ii52; Endl. gen. 2282. climbisg uemp-weed. 



[Dedicated to Prof. Mikan, of Prague; a botanist who lived in the last century.] 



Heads mostly 4-fiowered. Receptacle naked, narrow. Scales of the involucre 4 or 5. Corolla 

 dilated or campanulate at the summit, 5-toothed. Anthers partly exserted. Achenia angled. 

 Pappus in a single series, capillary, rough. — Shrubby or herbaceous, mostly climbing 

 plants, with opposite commonly cordate Ifeaves. Heads corymbose, panicled or spiked. 

 Flowers whitish. 



1. MiKANiA scANDENs, Willd. Comvion Climbing IIe??i]}-weed. 



Stem smooth, twining ; leaves on slender petioles, hastate-cordate, acuminate, repandly 

 toothed ; corymbs panicled, clustered ; scales of the involucre lanceolate ; achenia glandular. 

 —Willd. sp. 3. p. 1743 ; Pursh, Jl. 2. p. 517 ; Ell. sk. 2. p. 292 ; Bigel. Jl. Bost. p. 295 ; 

 Beck, hot. p. 198 ; Darlingt. fl. Cest. p. 454 ; Torr. ^ Gr.Jl. N. Am. 2. p. 91. Eupatorium 

 scandens, Linn.; Micha:. fl. 2. p. 97; "Jacq. ic. rar, t. 169." 



