COLOMBIAN EUPATORIUMS. 297 



Huila: Cordillera Oriental, east of Neiva, Rushy i?- Pennell, no. 1049 (N. Y.). 



Antioquia: Cordillera Central, near Medellin, alt. IGOO in.. Mayor, no. 577 

 ace. to Heering, 1. c., as E. Schicdeanmn. 



Cundinamarca: in thickets near Pacho, alt. 1600-2200 m., Lehmann, no. 

 7496 (N. Y.); Cordillera Oriental, above Bogottl, alt. 2500 m., Mayor, no. 54, 

 ace. to Heering, 1. c. 



Without locality: Triana, nos. 1183 (K.) and 11 S9 (K.). 



[Southwestern U. S., Mex., Cent.-Am., Venezuela.] 



Common and weed-like, with the habit of Agcrafum. Fairly con- 

 stant in inflorescence and floral character, but through considerable 

 and apparently independent A'ariation of several features (notably the 

 shape, texture, and pubescence of the outer scales of the involucre) 

 passing into many preceptibly different yet not readily delimitable 

 forms not as yet correlated with habitat or range. The early attempts 

 by Sclu-ader and by DeCandolle to divide the plant specifically or 

 varietally appear on examination of the material now available to 

 break down entirely. It is unaccountable that a plant so common 

 and widely distributed in the warmer parts of America should have 

 so completely escaped the notice of the earlier collectors including 

 Humboldt & Bonpland. 



42. E. Klattianum Hieron. A goft-woody shrub with weak 

 ascending or drooping rusty-pubescent branches; leaves subopposite, 

 deltoid-ovate, cordate, membranaceous, crenate-serrate, 3 cm. long, 

 nearly as wude, acuminate, puberulent above, rusty- or sordid-pubes- 

 cent beneath; petiole (of the upper cauline leaves) about 1 cm. long; 

 inflorescence and heads as in the preceding; florets greenish- white and 

 fragrant (Lehmann) ; achenes entirely glabrous. — Hieron. in Engl. 

 Bot. Jahrb. xx\dii. 573 (1901). E. umbrosum Klatt in Engl. Bot. 

 Jahrb. viii. 35 (1887), not Benth. 



Cundinamarca: in open woods about Pasca, alt. 2000 m., Lehmann, no. 

 2520 (Gr.). 



Notwithstanding its reported shrubby character, white florets, and 

 glabrous achenes, this species corresponds so closely in many minor 

 features with the preceding as to suggest at least very recent common 

 origin if not \'arietal relationship. 



43. E. Pennellii Robinson. Erect perennial herb, 1.5 m. high, 

 nigrescent in drying; stem terete, entirely glabra te at maturity, 

 purple, its internodes 1-1.5 dm. long; leaves opposite, slender- 

 petioled, ovate, long-acuminate, rounded at the base, rather finely 

 serrate (teeth 14-18 on each side, 0.7 mm. high, 1.5-2.5 mm. broad), 



