COLOMBIAN EUPATORIUMS. 313 



tube about equalling the distinctly cylindric-campanulate throat; 

 achenes slightly attenuate toward the base and perceptibly contracted 

 just bt'low the summit, hispidulous on the angles or quite glabrous; 

 pappus-bristles 20-25.— Nov. Gen. et Spec. iv. 124 (1820); Klatt in 

 Engl. Bot. Jahrb. viii. 34 (1887). 



Cundinamauca: in temperate region near Guaduas, alt. 1100 m., Hum- 

 boldt tt Bonplnnd (Par., phot. Gr.); Bogotil, Rusby cfc Pennell, no. 1306 (N. Y.); 

 shrubby hillside, southwest of Sibate, alt. 2800-2900 m., Pennell, no. 2393 

 (Gr.). 



Huila: Las Escalcretas, Moras Valley, Rio Pacz basin, Tierra Adentro, 

 alt. 2500-3000 m., Fittier, no. 13S0a (U. S.). 



Without locality: Triana, no. 1188 (N. Y.); Lehmann, no. CX. (Gr.). 



Persistent search has failed to disclose between the following varie- 

 ties any constant or natural differences which would justify their 

 maintenance as separate species. 



Var. typicum. Stem, branches, pedicels, and often outer involu- 

 cral scales, as well as the margins, nerves, and rarely the surface of the 

 leaves finely pubescent, the hairs delicate, short, dark, purplish or 

 brownish, ascending or somewhat spreading. — Lit. and exsicc. as 

 above. 



Here, provisionally and somewhat doubtfully, may be placed E. 

 sotarense, var. brcviflora Hieron. in Engl. Bot. Jahrb. xxviii. 574 (1901), 

 known as yet only from the original material from open thickets on 

 the slopes of Mt. Gualcala in the district of Tuquerres, alt. 2500-2900 

 m., Lehrnann, no. 5195 (Berl., fragm. Gr.). Although the heads 

 are slightly smaller than usual in the species and the leaves a trifle 

 larger and more pubescent, these differences are of degree rather than 

 kind, and are no greater than are usually bridged by complete inter- 

 gradation. The pubescence of the pedicels, while more copious, is 

 precisely of the sort prevalent in E. gracile, and not gland-tipped as 

 in the typical E. sotarense. 



Var. epilobioides (HBK.) Robinson, comb. nov. Glabrous 

 throughout or with only minute vestiges of pubescence on the branches 

 of the inflorescence. — E. epilobioides HBK. Nov. Gen. et Spec. iv. 

 125 (1820). E. caducisetum DC. Prod. v. 165 (1836). 



Cundinamarca: in temperate region near Guaduas, Humboldt & Bonpland 

 (Far., phot. Gr.) ; about Santa Fe de Bogotd, [specimen from herb, of] Deles- 

 sert (DC., phot. Gr.); at the falls of Tequendama, 8-11 Dec. 1852, Holton 

 (K., N. Y.); near Bogotd, in mountains, 18 Nov. 1852, Holton (N. Y.); near 

 Bogota, alt. 2700 m., Bros. ApolUnaire & Arthur, no. 93 (Gr.); dry open hill- 



