COLOMBIAN ErPATOHIUMS. 327 



to the touch; brunches terete, curved-asceiuhiif^s leafy to the teriiiinal 

 corymbs; kuvves opposite, closely sessile, ovate-oblong or elliptic- 

 lanceolate, narrowed to an obtusish apex, serrate, sordid-pubescent 

 on both surfaces, 5-7-nerved, about 7 cm. long, half as wide, rounded 

 at the base; corymb umbelliform, about lO-headed; heads long-pedi- 

 celled, about 100-flowered, 12-13 mm. high; involucre campanulate; 

 scales subequal, little imbricated, lance-oblong, acute, toward the base 

 somewhat 2-4-nerved, dorsally pubescent and glandular, probably 

 purplish-tinged; corollas rose-colored, the proper tube 2.6 mm. long, 

 very slender, the throat 3.7 mm. long, campanulate-cylindrical, hispid 

 on the outside toward the limb. — Proc. Am. Acad. liv. 2()1 (1918). 



Magdalena: on the Sierra Nevada, Prov. of Rio Hacha, Schlim, no. 812 

 (K., phot. Gr.). 



A species with conspicuous and somewhat massed heads of pink 

 florets suggesting possible value in horticidture. 



Sect. VII. Hebeclinium (DC.) Benth. Involucre 3->:-seriate; 

 scales graduated (the outer progressively shorter), persistent, usually 

 acute. Receptacle strongly convex, ellipsoidal to hemispherical, 

 hairy; the hairs (minute and obscure in the first species) usually 

 conspicuous on the fall or removal of the achenes. — Benth. ex Bak. 

 in Mart. Fl. Bras. vi. pt. 2, 345 (1876); Hoffm. in Engl. & Prantl, 

 Nat. Pflanzenf. iv. Abt. 5, 140 (1890). Hehedinium DC. Prod. v. 

 136 (1836). — A small and probably somewhat artificial section, rang- 

 ing from Mexico to Brazil and Argentina. 



Key to Species. 



Leaves on winged auriculate-based petioles; florets 200-300 



90. E. nemorosum^ 

 Petioles not winged 

 Florets about 20 



Leaves densely white-silky beneath; corolla with a per- 

 ceptibly enlarged throat about as long as the proper tube 



91. E. sericeum. 

 Leaves subglabrous or sparingly pubescent on the veins be- 

 neath; corolla slender, uniformly tubular 92. E. erioclinium. 



Florets 50-75 93. E. viacrophyllum. 



90. E. nemorosum Klatt. Erect herb 0.6-2 m. high; stem 

 terete, pithy, pubescent with both weak articulated and gland-tipped 

 hairs; leaves (about 6 remote pairs) opposite, lanceolate or lance- 



