298 ROBINSON. 
mostly 5-nerved from the base, membranaceous, 5 cm. long, 3.5 em. 
wide, above sparingly pubescent on the nerves, below nearly or quite 
glabrous; petiole 1—-1.5 cm. long; heads 7 mm. high, about 25-flowered, 
in small rather loose 4—7-headed cymes disposed in a very open termi- 
nal leafy-bracted panicle; pedicels puberulent, 3-6 mm. long; in- 
volucre smoothish, campanulate, stramineo-scarious; scales 3-4- 
ranked, usually 2-ribbed (ribs uniting in a callosity at base); the 
inner scales elliptic-oblong, with scarious erose mostly rounded tip; 
the outer progressively shorter, ovate, ciliate and somewhat pubescent 
on the back; corollas white; achenes 2 mm. long, short-pubescent, 
dark with lighter ribs — Proc. Am. Acad. liv. 254 (1918). 
Huma: foot of Cordillera Oriental, near Neiva, Rusby & Pennell, no. 626 
(Ge, Ni ¥.): 
A species near the variable E. pyenocephalum but with more open 
cymes, slightly larger heads, white florets, and almost caudate- 
acuminate many-toothed leaves somewhat nigrescent in drying. 
44. E. obscurifolium Hieron. Perennial, herbaceous, 2 m. high, 
branched above, minutely incurved-puberulent, the hairs rusty-. 
brown or purplish; internodes long; leaves opposite, petiolate, 
lance-ovate, acuminate, rounded at base, serrate, dull, punctate, 
nigrescent in drying, 4~6 em. long, 3-3.5 em. wide; heads 35-70- 
flowered, in a convex trichotomous cymose corymb (1-1.5 dm. m 
diameter); pedicels 5-10 mm. long; involucre campanulate; scales 
narrow, linear-oblong, acutish, all (even the outer) with a long callosity 
at the base; florets reddish-lilac.— Hieron. in Engl. Bot. Jahrb. xx1%- 
9 (1900); Heering, Mém. Soc. neuchat. Sci. Nat. v. 420 (1913). 
Cunpinamarca: above Ubaqué, between the village and the Péramo Cruz 
Verde, about 2500 m., Mayor, no. 53, acc. to Heering, 1. c.; slope of Mont- 
serrate, above Bogoté and Péramo Cruz Verde, alt. 2700-3200 m., Mayor, 
no. 76, ace. to Heering, |. ¢ 
{Eeuador.] 
No Colombian material of this has been seen by the writer. The 
character is here drawn from the Ecuadorian type, of which there are 
now a fragment and photograph in the Gray Herbarium. 
45. E. perezioides Robinson. Slender erect perennial 4-5 dm. 
high; stem terete, simple to the inflorescence, fuscous-tomentose an 
glandular; lower internodes very short (2-12 mm. in length), the 
upper 2-3 cm. long; leaves opposite, ovate-elliptical or oval, BARE 
cordate, crenate-serrate, firm, subcoriaceous, dark-green and sprink! 
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