330 COMPOSITJE. ErPATORiuM. 



Stem 2-3 feet high, usually a little branched above. Leaves 3-5 inches long and 2-3 

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

 long: corymb compound. Heads usually 12 - 15-flowered. Flowers pure white, somewhat 

 fragrant. Corolla narrowed below, campanulate at the summit ; the lobes ovate, smooth. 

 Style much exserted. 



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



8. EuPATORiUM AROMATicuM, Linti. Sioeet-scented Hemp-weed. 



Pulverulent-pubescent ; stem branching at the summit ; leaves on sliort 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-flo\vered ; scales of the involucre linear-lanceOlate, 

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

 p. 1765; Miclix. Jl.^. p.\00; Pursh, Jl. 2. p. 516 ; Ell. sk. 2. p. 304 ; Bigel. fl. Bost. 

 p. 298 ; Becli, bot.-p. 198 ; DC.jjrodr. 5. p. 175 ; Darlingt. fl. Cest. p. 452 ; Torr.. ^ Gr. 

 fl. N. Am. 2. p. 90. E. cordatum, Walt.fl. Car. p. 199 ; DC. I. c. E. mehssoides, Wilkl. 

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



Stem li - 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. Corvmb 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. 1452; Endl. gen. 2282. CLIMBING HEMP-WEED. 



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



Heads mostly 4-flowered. 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 leaves. Heads corymbose, panicled or spiked. 

 Flowers whitish. 



1. MiKANiA scANDENs, Willd. Covimon Climbing Hemp-weed. 



Stem smooth, twining ; leaves on slender petioles, hastate-c*date, acuminate, repandly 

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

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

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

 Bcandens, Linn.; Michx. fl. 2. p. 97; "Jacq. ic. rar. t. 169." 



