EUPATORIUMS OF PERU. 65 



on the outer side), dull-green abo\'e, slightly paler beneath, sordid- 

 pubescent on both surfaces, 5 cm. long, 2.8-3.5 cm. wide; petiole 

 slender, 2-2.5 cm. long; corymbs trifid, leafy-bracted at base, the 

 bracts lanceolate, entire, petiolate; partial inflorescences rounded, 

 rather dense, 2^ cm. in diameter, the branchlets and filiform pedicels 

 (1-3 mm. long) densely covered with a short brownish-gray pubes- 

 cence; heads 5-6 mm. high, about 10-flowered; involucral scales 

 about 15, obtuse, brownish-stramineous, somewhat scarious, the outer 

 short, ovate, loosely-pubescent, the intermediate elliptic-oblong, 

 3-5-ribbed, slightly puberulent toward the tip; corollas about 4 mm. 

 long, with slender proper tube 2 mm. long, slightly enlarged into a 

 cylindric throat 1.7 mm. long; style-branches filiform, not clavate; 

 achenes (very immature) 2 mm. long, grayish-pubescent; pappus- 

 bristles about 30, delicate, white, distinctly shorter than the corolla. — 

 Hieron. in Engl. Bot. Jahrb. xxxvi. 468 (1905). — Cajamarca: near 

 Callacate, May, 1879, von Jclski, no. 670 (Berl., fragm. Gr.). 



45. E. URUBAMBENSE Robinson (p. 38). Perennial herb or 

 perhaps shrub (the base unknown) ; stems (or branches) erect, terete, 

 purple, covered with fine white crisped puberulence; internodes 1.5- 

 (the upper)8-ll cm. long; leaves opposite, ovate-lanceolate, gradu- 

 ally narrowed from much below the middle to a mostly obtusish tip, 

 crenate except toward the obtusish or rounded base (the teeth 0.7-1.5 

 mm high, 3-4 mm. wide), 3-nerved from somewhat above the base 

 (the lateral nerves quickly branching), thickish-membranaceous, 

 dull-green, slightly rugulose and puberulent above, gray-tomentose 

 beneath, 5-6.6 cm. long, 1.8-2.7 cm. wide; petiole 5-8 mm. long, 

 slender except at the somewhat expanded base; corymbs trichoto- 

 mous, leafy-bracted at the base (the bracts like the leaves only smaller, 

 similarly crenate and petioled) ; partial inflorescences dense, rounded, 

 3-6 cm. in diameter; heads about 10-flowered, about 8 mm. high, 

 essentially sessile; involucre subcylindric-campanulate; the scales 

 about 3-seriate, rounded at the summit, the outer very short, 

 the intermediate broadly elliptical, brownish-stramineous, mostly 

 3-nerved and 4-costulate, somewhat margined, the innermost linear- 

 oblong, slightly erose-ciliate at the blunt summit; corrollas 4.8 mm. 

 long, slenderly tubular, perceptibly constricted just above the base 

 and sometimes slightly so just beneath the limb, glabrous; teeth 

 lanceolate; style-branches filiform, scarcelj^ clavellate; anthers with 

 long narrow apical appendage; achenes fuscous, 2.6 mm. long, taper- 

 ing downward, upwardly villous on the nerves; pappus-bristles about 

 28, lucid, yellowish-white, tapering, 4.3 mm. long, nearly smooth. — 



