Eupatorium. COMPOSITE. 101 



or roundish, obtuse or acute, sparingly dentate, sometimes merely repand or entire, an inch 

 or two long, rather short -petioled : cymes small and rather compart, sum<-\\ hat paniculate: 

 heads (4 or 5 lines long) 15-25-flowered : involucre hardly longer than the maiim- aki 

 its bracts about 15 in two series, nearly equal, lanceolate, rather linn, nearly i 

 corolla white or flesh-color. Fl. i. 305 ; Torr. & Gray, Fl. ii. 91. E. Oreganum, NUM. Ti 

 Am. Phil. Soc. vii. 286. Crevices of rocks, Washington Territory and (lie-on east of the 

 Cascade Mountains, N. Nevada, and through the Sierra Nevada oi' California. 



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

 sometimes 2^ inches long. E. ageratifolinm, var. ? herbaceum, Grav, PI. Wriuht. Ii. 74. 

 E. Berlandieri, Gray, Bot. Mex. Bound. 76, not DC. Mountains of Ari/ona and Now 

 Mexico : also California, Bridges. The opposite extreme from the plant of < >regon, which 

 has small and tliinuish leaves, but not unlike plants from the Sierra Nevada. 

 B. incamatum, WALT. More or less pubescent : stems 2 or 3 feel Ion--, slender and weak, 

 loosely or diffusely branched : leaves thin, deltoid, or ovate-lanceolate with broad trnncat;- or 

 cordate base, tapering to a mostly acuminate apex, coarsely eremite or senate (an inch or 

 two long), veiny, slender-petioled : cymes small and lax: heads (2 or 3 lines lonir) about 

 20-flowered: involucre nearly equalling the pale purple or sometimes \\hi.e corolla; its 

 bracts unequal, narrow, thin and 2-nerved when dry, the inner linear, a 1'ew e.\teni;;l ones 

 much shorter. Car. 200 ; Ell. Sk. ii. 306 ; DC. Prodr. v. 1 75 ; Torr. ,v ( ; ray, 1. c. N. Caro- 

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



H- -H- 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 10-30- or sometimes 8-14-nWuvd, 

 cymose. 



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

 nerveless when fresh, but more or Lss 2-iiurved when dried: cymes corymbil'onii and naked, 

 usually ample. 



E. ageratoid.es, L. f. Nearly glabrous, sometimes pubescent : stems 1 to 3 feet high, 

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

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

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

 355; DC. Prodr. v. 175; Torr. & Gray, Fl. ii. 89. E. urtica folium, Kvidi. Syst. iii. 71'.); 

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

 200 '? E. Fraseri, Poir. Suppl. ii. 600 (Lain. 111. t. 672, fig. 4). Aijeratmn (il/ix.</iitini>, L. Spec, 

 ii. 839 (Corn. Canad. t. 21 ; Moris. Syst. sect. 7, t. 18, f. 11). Moist woodlands and rich 

 soil, Canada to Minnesota, Arkansas, Georgia, and Louisiana. A state with vist id-\ illotis 

 stem and petioles, Bedford Co., Virginia, Cttrtiss. 



Var. angustatum. Smaller, slender: 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: cymes looser: heads only 8-12-flowered. W. Louisiana, link-. Texas, 

 Wright, Lindlu-hner. 



E. aromaticmn, L. Herbage not aromatic, minutely puberulent: stems more simple, a 

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

 acutish or obtuse, creuate-serrate, U to 3 inches long: cymes simpler. Spec. ii. s:i'.i, lido 

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

 E. ceanothifolium, Muhl. in Willd. Spec. iii. 1755; Ell. Sk. ii. 303; DC. 1. c.-- Dry woods 

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

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



Var. melissoid.es. Slender, roughish-puberulent, strict, somewhat panieulately 

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

 long, obtuse, crenulate-clentate or with few coarser teeth, very short-pet ioled or even sub- 

 sessile, somewhat scabrous, most of them much shorter than the internodes. E. melissoides, 

 Willd. 1. c. E. cordiforme, Poir. Suppl. ii. 600. E. cordalnm, DC. 1. c., & var. Fraseri.- 

 Sterile soil, Perm. ? to Florida and Louisiana. 



Var. inClSUm. An insufficiently known plant, with the straggling habit and glabrous 

 involucre of E. incamatum ; probably a form either of this or the preceding species: leaves 

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

 erably like those of E. codestinum, var. salinum, Griseh. : " tlo\\ers very fragrant." 

 veolens, Chapm. Bot. Gazette, iii. 5, not of HBK. Manatee, &c., S. Florida, r/,,/y. ,/;,///. 



