COLOMBIAN EUPATORIUMS. 327 
to the touch; branches terete, curved-ascending, leafy to the terminal 
corymbs; leaves 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 10-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. 261 (1918). 
Magpa.ena: 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 horticulture. 
Sect. VII. Hesecurium (DC.) Benth. Involucre 3-%-seriate; 
Seales graduated (the outer progressively shorter), persistent, usually 
acute. Receptacle strongly convex, ellipsoidal to hemispherical, 
; the hairs (minute and obscure in the first species) usually 
fonspicuous on the fall or removal of the achenes.— Benth. ex Bak. 
el Fi. Bras. vi. pt. 2, 345 (1876); Hoffm. in Engl. & Prantl, 
a Pilanzenf. iv. Abt. 5, 140 (1890). Hebeclinium DC. Prod. v. 
436 (1836).— A small and probably somewhat artificial section, rang- 
ing from Mexico to Brazil and Argentina. 
Key to Spectss. 
Veawves on wi ged auriculate-based petioles; florets 200-300 
Petioles not winged 90. E. nemorosum. 
Acne about 20 
ves densely white-silky beneath; corolla with a per- 
ceptibly enlarged throat about as long as the proper tube p 
91. E. sericeum. 
Teaves subglabrous or sparingly pubescent on the veins be- 
Florets 50-7 corolla slender, uniformly tubular....... 92. #. erioc 
Oe. 93. E. macrophyllum. 
ot *. nemorosum Klatt. Erect herb 0.6-2 m. high; stem 
hairs; i Y, pubescent with both weak articulated and gland-tipped 
> iaves (about 6 remote pairs) opposite, lanceolate or lance- 
