54 ROBINSON. 



terminal or somewhat lateral, 3-5-headed; pedicels woolly, 5-15 mm. 

 long, filiform, mostly recurved; heads rather large, 1.3 cm. high, 

 about 1 cm. in diameter; involucre narrowly campanulate, the scales 

 lanceolate, attenuate, the inner long, stramineous, smoothish, the outer 

 progressively shorter, rather densel;v' woolly; corollas glabrous, greenish 

 (Weberbauer), 8-10 mm. long, the style-branches clavate, purple; 

 achenes (immature) pale, 4 mm. long, slightly hispidulous on the angles. 

 — Chlor. And. i. 216, t. 40A (1857). — Cuzco: on mountains, Gay, ace. 

 to Wedd. 1. c. Junin: calcareous rocks, alt. 3700—4000 m., between 

 Tarma and La Oroya, Feb., 1903, Weberbauer, nos. 2524 (Berl.) and 

 2583 (Berl., fragm. Gr.). 



19. E. Ballii Oliver. Similar to the preceding in habit and in- 

 florescence; leaves narrowly lance-oblong, acute, cuneate at the sub- 

 sessile base, 5-8 cm. long, 7-13 mm. wide, thinnish, sparingly arachnoid 

 and finely bullate above, paler and sparingly sordid-woolly beneath; 

 cymes loose, few-headed; heads large, 1.5-1.8 cm. long, mostly nodding 

 on slender (at maturity) dark glandular-puberulent pedicels; involucral 

 scales ovate-elliptic, acuminate, thin, finely many-striate, 3-5-seriate, 

 graduated, the outer distinctly shorter and more woolly; florets as in 

 the preceding. — ^Oliv. in Hook. Ic. xv. 49, t. 1462 (1884). — Lima: on 

 ledges of the Andes, near Chicla, alt. 3660-3965 m., Ball (Gr.). 



20. E. CuRSONii Robinson. Probably shrubby and with the habit 

 of the two preceding species; branchlets round, slender, fusco-tomentel- 

 lous, leafy toward the summit; internodes about 8 mm. long; leaves 

 opposite, linear-lanceolate, attenuate to both ends, above slightly 

 puberulent and bullate-rugulose; beneath paler, reticulate-venose, 

 tomentose, 9 cm. long, 8 mm. wide, thickish, the margin strongly revolute, 

 slightly crenulate; petiole about 1 mm. long; heads in terminal 3-headed 

 cymes, about 80-flowered, very large for the genus, 2.5 cm. long about 

 equally thick; pedicels slender (short in fragmentary t;y^e but with 

 greater maturity presumably elongating); involucral scales much 

 imbricated in 3-5 series but not graduated as to length, lanceolate, 

 acute, the outer thickish, 2 cm. long, 4 mm. wide, finely striate, granular- 

 puberulent on the back, subherbaceous, scarious-margined ; the inner 

 narrower, smoother and more strainineous ; receptacle apparently 

 somewhat paleiferous toward the edge; pales very narrow, filiform- 

 attenuate; corollas 1 cm. long, slenderly tubular, glabrous; style- 

 branches, clavate, somewhat flattened, dark purple; achenes 7 mm, 

 long, slightly roughened on the angles; pappus-bristles about 50, some 

 of the outer shorter.r— Proc. Am. Acad. xlii. 38 (1906). — xIrequipa: 

 Arequipa, Curson (Brit. Mus., phot. Gr.). — Known only from a single 



