EUPATORUMS OF VENEZIELA. 341 



Sect. III. ExiMBRiCATA (DC.) Hoflfm. (see p. 303). • 



Key to Species. 



a. Leaves 3(-5)-nerved from or sliffhtly above the base b. 



b. Heads 10-15-flowered, panicled 25. E. solidagittoides. 



b. Heads 20-oc-flo\vered, coryiubed c. 



c. Villous, the hairs rather long, slender, clearly articulated; 

 herbaceous or suffruticose d. 

 d. Creeping; rhizome filiform; stems several; leaves 



about 1.8 cm. long and 1.3 cm. wide 26. E. sillense. 



d. Not creeping; leaves o-7 cm. long, 4-.5 cm. wide e. 

 e. Leaves coarsely and crenately 7-10-toothed on each 



side 27. E. ardculatum. 



e. Leaves serrately or crenately 12-18-toothed on each 



side 28. E. ibaguense. 



c. Puberulent, the hairs very short, not articulated or very 



obscurely so " 28a. E. n. sp.? 



a. Leaves pinnate- veined, oblong or elliptical, coriaceous ; shrubs, 

 often viscid on the involucre g. 

 g. Heads about 6-flo\vered; leaves 6-9. .5 cm. long, woolly on 



the midrib beneath 29. E. Jahnii. 



g. Heads 10-1.5-flowered; leaves 2-3.5 cm. long h. 



h. Leaves elliptical, the exserted veinlets beneath not sul- 



cate; pubescence of spreading attenuate bristles. . .30. E. flnvisetum. 

 h. Leaves oblong, the exserted veinlets beneath sulcate; 



pubescence scanty, of short incurved hairs 31. E. thenefolium. 



25. E. SOLIDAGINOIDES HBK. (see p. 310). Merida: near Tovar, 

 alt. 1067 m., Fcfidlcr, no. 629 (Gr.). 



26. E. SILLENSE Hieron. Creeping by means of threadlike rhi- 

 zomes; stems several, as much as 4 dm. high, sparingly villous, the 

 hairs articulated; internodes sometimes as much as 5 cm. long; 

 leaves opposite, petiolate, ovate, short-acuminate, crenate except at 

 the rounded or cordate base, membranaceous, green and slightly 

 glaucous on both surfaces, villous especially on the nerves, the largest 

 1.8 cm. long, 1.3 cm. broad; petiole scarcely over 1 cm. long; heads 

 rather loosely cymose-corymbed at the top of the stem, 20-25- 

 flowered; pedicels as much as 8 mm. long; involucre campanulate, 

 the scales 12-14, linear, obtusish, nearly equal, 4.5 mm. long, thin, 

 scarious and somewhat stramineous, villous-ciliate, 3-nerved; corol- 

 las about 3.25 mm. long, yellowish-white (in dried state); the proper 

 tube about equalling the campanulate throat. — Hieron. in Engl. 

 Bot. Jahrb. xl. 382 (1908).— Federal Dist. : on Mt. Silla de Caracas, 

 20 January, 1856, Golhner, without number. Not seen by the writer; 

 said to resemble E. caducisctum DC. and E. glechonophijllum Less. 

 Description compiled. 



