Eupatorium. COMPOSIT.E. 101 



or ronndish, olituse or acute, sparingly dentate, sometimes merel_v repand or entire, an inch 

 or two long, rather short -petinled : cymes small and rather compact, somewhat paniculate : 

 heads (4 or 5 lines lung) 15-25-flowered ; involucre hardly longer than the mature akenes ; 

 its bracts about 15 in two series, nearly equal, lanceolate, rather firm, nearly ner\(lcss; 

 corolla white or flesh-color. — Fl. i. 305 ; Torr. & Gray, Fl. ii. 91. E. Ortijinnim, ^utt. Trans. 

 Am. Phil. Soc. vii. :?S6. — Crevices of rocks, Washington Territory and Oregon east of the 

 Cascade .Mountains, N. Xevaila, and through the Sierra Xe\ada of California. 



Var. Arizonicum. Larger (2 feet high), more branching and floribund: leaves 



sometimes i^ inches long. — E. ariirutifolium, var. ? lierhaceum, Gray, PI. tt'right. ii. 74. 

 E. Befhindicri, Gray, Bot. ^lex. Bound. 76, not DC. — ^lonntains of Arizona and New 

 Mexico : also California, Brich/es. The opposite extreme from the plant of Oregon, which 

 has small and tliiunish leaves, but not unlike plants from the Sierra Xevada. 



• B. incarnatum, \V.a.lt. More or less pubescent: stems 2 or 3 feet long, slender and weak, 

 loosely or diif usely branched : leaves thin, deltoid, or ovate-lanceolate with broad truncate or 

 cordate base, tapering to a mostly acuminate apex, coarsely crenate or serrate {an inch or 



> two long), veiny, sleuder-petioled : cymes small and la.x : heads i,2 or 3 lines long) about 

 20-flowered: involucre nearly equalling the pale purple or sometimes wliite corolla; its 

 bracts unequal, narrow, thin and 2-nerved when dry, the inner linear, a few external ones 

 much shorter. — Car. 2(10; Ell. St. ii. 306 : ])C. Prodr. v. 175 ; Torr. & Gray, 1. c. — X. Caro- 

 lina to Florida, Louisiana, and Texas. (Adj. Mex.) 



-w- -M- Lobes of the pure white corolla more or less bearded outside in the bud, sometimes very 



sparsely and minutely so, or the beard fugacious: heads 15-30- or sometimes 8-14-fiowered, 



cyniose. 

 = Involucre 2 or 3 lines long, rather narrow ; the linear bracts nearly equal, green externally and 



nerveless when fresh, but more or l^ss 2-nerved when dried : cymes corymbiform and naked, 



usually ample. 

 ' B. ageratoides, L. f. Xearly glabrous, sometimes pubescent : stems 1 to 3 feet high, 

 branching above: leaves bright green, membranaceous, long-petioled, ovate, with truncate 

 or subcordate or broadly cuueate base, acuminate, coarsely and rather sharply dentate- 

 serrate, conspicuously veiny, 3 to 5 inches long: cymes ample, corymbose-cymose. — Suppl. 

 355; DC. Prodr. v. 17:); Torr. & Gray, Fl. ii. 89. E. urticcefolium, Eeich. Syst. iii. 719; 

 Michx. Fl. ii. 100, not L. f. E. allissimum, L. Syst. Veg. 614. E. odoraium? Walt. Car. 

 200 ' E. Fraseri, Poir. Suppl. ii. 600 (Lam. 111. t. 672, fig. 4). Ageratum altissimum, L. Spec. 

 ii. S39 (Corn. Canad. t. 21 ; Moris. Syst. sect. 7, t. 18, f. 11). — Jloist woodlands and rich 

 soil, Canada to Minnesota, Arkansas, (ieorgia, and Louisiana. A state with viscid-viUous 

 stem and peticdes, Bedford Co., ^'irginla, Cwtiss. 



Var. angustatuin. Smaller, .^lender: leaves from ovate-lanceolate to broadly lan- 

 ceolate, much acuminate, coarsely serrate with only 3 to 6 teeth on each margin, commonly 

 cuneate at base: cvmes looser: heads only 8-12-flowered. — Vi'. Louisiana, Hale. Texas, 

 Wn'c/ht, Lindheimer . 

 -"B. Etromatioum, L. Herbage not aromatic, minutely puberulent : stems more simple, a 

 foot or two high : leaves dull green, thicker, mostly short-petioled, ovate, often subcordate, 

 acutish or obtuse, crenate-serrate, H to 3 inches long: cymes simpler. — Sper. ii. b.iS, fide 

 herb. & syn. Pluk. & Gronov. ; DC. 1. c.; Torr. & tiray, 1. c. E. cordatum, Walt. Car. 199 "i 

 E. ceanotiiifolmm, Muhh in Willd. Spec. iii. 1755; F.11. Sk. ii. 303; DC. i c — Dry woods 

 and pine barrens, mostly in sterile soil, coast of MassachiLsetts to Florida. Passes on the 

 one hand almost into the preceding ; on the other, into 



Var. melissoides. Slender, roughish-pnberulent, strict, somewhat panicolately 

 cvmose at summit: heads 5-12-flowered : leaves subcordate-ovate or oblong, f to 2 inches 

 Ions, obtuse, crenulate-dentate or with few coarser teeth, very short-petioled or even sub- 

 sessile, somewhtit scabrous, most of them much shorter than the internodes. — E. mdissoides, 

 Willd. 1. c. E. cordi/orme, Poir. Suppl. ii. 600. E. cordatum, DC. 1. c, & var. Fraseri. — 

 Sterile soil, Peun. 1 to Florida and Louisiana. 



"Var. incisum. An insufliciently known plant, with the straggling habit and glabrous 



involucre of E. incarnatum; probably a form eitlier of this or the preceding species: leaves 



" slender-petioled, thickish, coarsely or laciniately dentate, broadly cuneate at base, consid- 



erablv like those of F. codestinum, var. salinum, Griseb. : "flowers \-ery fragrant." — F. sua- 



veolens, Chapm. Bot. Gazette, iii. 5, not of HBK. — Manatee, &c., S. Florida, Chapman. 



