336 ROBINSON. 



woolly-villous; leaves opposite, ovate, sharply acuminate, cordate 

 at the rounded base, crenate-serrate, 3-5 cm. long, 2-3 cm. wide, 

 bullate and puberulent aboxe, below gray-tomentose and prominently 

 reticulated with transverse veins between the 3 (-7) nerves; corymbs 

 open and few-headed; pedicels spreading, slender, pubescent, 2-12 

 mm. long; heads about 9 mm. high, 6 mm. in diameter, about 28- 

 flowered; involucre campanulate-subcylindric, the scales about 27, 

 somewhat rigid, ivory-white, shining, 1-3-nerved, 4-5-seriate, 

 promptly deciduous; corollas glabrous, 4 mm. long, the proper tube 

 considerably exceeding the campanulate throat; pappus-bristles 

 about 26, slightly clavellate and yellowish toward the top; achenes 

 black, 4-5-angled, slightly scabrid on the angles. — Merida: near 

 Tovar, Fendler, no. 638 (Gr.). Feder.\l Dist. : Caracas, Birschcl 

 (Gr.); on the old road from Caracas to La Guaira, alt. 1100-1700 m. 

 Piitier, no. 5880 (U. S., N. Y.). 



Sect. II. SuBiMBRiCATA (DC.) Hoffm. (see p. 281). 



Key to Species. 



a. Perennial herbs or shrubs h. 



b. Heads separate or in small (2-5-headed) glomerules, dis- 

 posed in open panicles c. 



c. Invohicral scales 2-3(-o)-nerved or -ribbed d. 

 d. Leaves pinnately veined e. 



e. Heads about 13-flowered; leaves attenuate at base, 

 about 3 cm. wide; corolla with a perceptibly en- 

 larged throat about as long as the proper tube . . 12. E. (orarense. 



e. Heads about 21-flowered; cauline leaves mostly 

 rounded at base, 4.5-10 cm. wide; corolla without 

 differentiated throat 13. E. Squiresii. 



d. Leaves pahnately 3 (-5)-nerved /. 

 /. Heads about .5-flowcred g. 



g. Leaves crisped-puberulent to tomentose but not 



glandular beneath 14. E. iresinoides. 



g. Leaves copiously glandular-pubescent beneath 



15. E. Wageneri. 



f. Heads 20-25-flowered 22. E. pijcnocephalum. 



c. Invohicral scales multiseriate; heads 1.2-1.6 cm. high 



16. E. ntalbae. 

 b. Heads in flattish-topped fastigiately branched cymose 



panicles; leaves firm-coriaceous 17. E. amt/gdalinuiti 



b. Heads crowded in corymbose or thyrsoid panicles /(. 

 /(. Leaves lanceolate to rhombic-ovate, attenuate to an es- 



sentiallj' sessile base 18. E. inulaefolium. 



h. Leaves ovate-oblong to suborbicular, mostly rounded or 

 obtuse at the distinctly petioled base i. 

 i. Shrubs (e.xcept E. lenuifolium); heads 4-10-flowered j. 



