* 
338 PROCEEDINGS OF THE AMERICAN ACADEMY. 
chotomous ; pedicels filiform, 5 mm. long; involucral bracts thin, pale 
green, very unequal, the inner oblong, obtuse, ciliate and minutely 
puberulent, 6 mm. long, the outer much shorter, ovate-lanceolate, acute, 
glabrous: flowers about 16: corolla purple, 6 mm. long, considerably | 
exceeding the delicate bright white pappus: achenes glabrous, dark 
gray, 2 mm. long. — Collected by C. G. Pringle in a wet mountain 
cation above Cuernavaca, Mexico, altitude 2,000 m., 15 February, 1899, 
no. 8030. Three to five meters high 
E. pacacanum, Klatt, Botanisches Beiblatt zur Leopoldina, 1895, 
p. 8.. Add syn. Z. roseum, Klatt. Bull. Soc. Bot. Belg. xxxi. 194 (1892), 
not Gard. Both of Dr. Klatt’s species here mentioned rest upon 
Pittier’s no. 3324. The existence of an earlier valid 2. rosewm neces- 
sitates the adoption of Dr. Klatt’s second name. 
E. phoenicolepis. Stems terete, probably herbaceous, purplish 
brown, covered with dense very short glandular sordid tomentum : leaves 
opposite, ovate, acuminate, cordate with a narrow sinus, serrate, dull green, 
pulverulent and sometimes bullate above, paler, tomentose and reticulate- 
veiny beneath, 3-nerved from near the base, 5 to 7 cm. long, 2.4 to 4. 5 
em. broad; petioles 1.4 to 3 em. long; bracts similar to the leaves ex- 
cept in their smaller size, extending up into the many-headed opposite- 
branched round-topped panicle; heads 1 cm. in height, about 18- 
flowered; bracts of the involucre purple, flat, striate, acutish, very 
unequal, regularly imbricated in 4 to 5 series, the outer very short, 
ovate, dark and dull, the inner lighter and somewhat lucid, about equal- 
ling the flowers: corollas apparently deep purple or crimson, 5 mm. 
long, equalling the delicate and not very copious pappus : style-branches 
clavate; achenes 2.2 mm. long, upwardly hispidulous under a lens. — 
Collected by E. W. Nelson between San Cristobal and Teopisca, Chiapas, 
Mexico, 4 December, 1895, no. 3475. Types in herb. Gray and herb. 
U.S. Nat. Museum. <A species with the styles and to some extent the 
involucre of a Brickellia but the achenes of a Eupatorium. It is most 
nearly related to E. Bigelovit, Gray, which, est has much more 
acute scales and smaller leaves not cordate at the bas 
E. photinum. Glabrous up to the slightly palveruleot-paberalet 
inflorescence, herbaceous, erect, 5 dm. high; stems terete, subsimple, 
dark purple, with rather long internodes: leaves opposite, ovate OF 
ovate-lanceolate, 7 to 11 em. long, 3 to 4 em. broad, caudate-attenuate, 
serrate except near the subacute base, green, glabrous, and somew at 
lucid upon both surfaces, 3-nerved from near the base; reticulate veins 
slightly translucent; petioles purple, 1.5 to 2 cm. long: heads small, 
