312 ROBINSON. 
18 cm. long, 7-12 em. wide, smoothish and green above, much paler, 
tawny-gray, and tomentose beneath; petiole 5 cm. or more in length; 
heads about 14-flowered, 7 mm. high, in a dense terminal tricho- 
tomous corymb 1.5-2 dm. wide; corollas white, the proper tube 
somewhat exceeded by the campanulate-cylindrical throat; achenes 
dark, smooth on the faces.— Proc. Am. Acad. liv. 246 (1918). 
MaapatEena: open places in the border of forest, Rio Frio, alt. 2300-2750 m., 
Kalbreyer, no. 1956 (K., phot. Gr.). 
67. E. Trianae Robinson. Presumably herbaceous perennial 
(base unknown); stems terete, flexuous, covered with very short 
purplish-brown tomentum; leaves alternate, lance-linear, 6-10 cm. 
long, 5-10 mm. wide, attenuate at both ends, obscurely and remotely 
denticulate or entire, reticulate-rugulose above, paler and sordidly 
gray-tomentose beneath; petiole 2-3 mm. long; heads about 28- 
flowered,5 mm. high and thick, in dense subsessile or shortly ped- 
uncled globose glomerules together forming an irregular corymb.— 
Proc. Am. Acad. liv. 260 (1918). 
“NEw GrenaDA”’; without more precise locality, Triana, no. 1196 (K, 
phot. Gr.). 
Exceedingly different from any other Colombian species of the genus 
and easily recognized by its narrow alternate leaves and small] sessile 
heads. In habit suggesting a Vernonia, but by character clearly # 
68. E. gracile HBK. Slender usually several-stemmed decum- 
bent or suberect perennial 3-8 dm. high, essentially herbaceous or 
slightly lignescent, finely pubescent or glabrous throughout; leaves 
opposite, ovate to (rarely) lanceolate, acute or acuminate, 4 tly 
narrowed to an obtusish or rounded base, erenately or sharply serrate, 
1.5-2.5(-4) cm. long, 7-20 mm. wide, membranaceous, US 
the base; petiole 1-6(-10) mm. long; internodes, especially ¢ ‘ 
upper, elongated, much exceeding the leaves; branches of the ine 
florescence ascending, slender, flexuous, trichotomously divided, : 
branchlets almost filiform, mostly 3-headed; pedicels at are 
often 1-2.5 cm. long, usually curved; heads often nodding; clnté: 
flowered, 6-8 mm. high, 4—5 mm. in diameter; involucre aaa ge : 
scales subequal, lance-oblong to linear, thin, closely a 
acutish to attenuate; corollas 3 mm. long, glabrous, the slen 
