298 ROBINSON. 



mostly 5-nerved from the base, membranaceous, 5 cm. long, 3.5 cm. 

 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). 



HuiLA : foot of Cordillera Oriental, near Neiva, Rusby it Pennell, no. 626 

 (Gr., N. Y.). 



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 dr^^ing. 



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 cm. long, 3-3.5 cm. wide; heads 35-70- 

 flowered, in a convex trichotomous cymose corymb (1-1.5 dm. in 

 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. xxix. 

 9 (1900); Heering, Mem. Soc. neuchat. Sci. Nat. v. 420 (1913). 



CuNDiNAMARCA : above Ubaque, between the village and the Paramo Cruz 

 Verde, about 2500 m., Mayor, no. 53, aoc. to Heering, 1. c.; slope of IMont- 

 serrate, above Bogota and Pdramo Cruz Verde, alt. 2700-3200 m., Mayor, 

 no. 76, ace. to Heering, 1. c. 



[Ecuador.] 



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 and 

 glandular; lower internodes very short (2-12 mm. in length), the 

 upper 2-3 cm. long; leaves opposite, ovate-elliptical or oval, obtuse, 

 cordate, crenate-serrate, firm, subcoriaceous, dark-green and sprinkled 



