328 ROBINSON. 



oblong, attenuate or acuminate, serrate except at the much contracted 

 petiolar base, Hght-green, pubescent on both surfaces, pinnately 

 veined, the expanded portion of the blade 7-15 cm. long, half as wide, 

 the petiolar portion 2-7 cm. long, 3-12 mm. wide, somewhat dilated 

 at the bi-auriculate and clasping base; heads numerous, paniculate, 

 about 220-flowered, pedicellate, about 1 cm. high; involucre cam- 

 panulate, about 3-seriate; the scales lanceolate, acute, not very 

 strongly graduated; receptacle an oblate spheroid, slightly and at 

 times rather obscurely puberulent; corollas slender-tubular, without 

 distinct throat, white or greenish-yellow; achenes black, lucid, 

 glabrous or nearly so. — Klatt in Engl. Bot. Jahrb. viii. 35 (1887); 

 Hieron. xxix. 14 (1900), where affinity with § Heheclinium was first 

 indicated, and xxviii. 576 (1901); Robinson, Proc. Bost. Soc. Nat. 

 Hist. xxxi. 251 (1904). E. Rushyi Britton, Bull. Torr. Bot. Club, 

 xviii. 334 (1891). 



Cundinamarca: Arroya "Guayabetal," alt. 1300-1500 m., Pennell, no. 

 1750 (Gr.); dry cliff, "Susumuco," alt. 1400 m., Pennell, no. 1353 (Gr.). 



Meta: moist bank, Villavicencio, alt. 500 m., Pennell, no. 1508 (Gr.). 



El Valle: borders of woods and in clearings of thick moist woods, on the 

 Cordillera Occidental, Call, alt. 2000 m., Lehmann, no. 3777 (sk. and fragm. 

 Gr.). 



Cauca: in dense forests at the Rio Ortega, on the eastern slopes of the Cor- 

 dillera Occidental, in the district of Popayan, alt. 1500-1700 m., Lehmann, no. 

 5964, ace. to Hieron., 1. c. 



[Costa Rica; Ecuador; Bolivia.] 



A highly characteristic species, sometimes fibrous-rooted as if 

 annual or at least flowering during the first season, but in other cases 

 exhibiting a thickened and somewhat lignescent base as if perennial. 



91. E. sericeum HBK. Tall vigorous perhaps climljing herb or 

 more likely soft-wooded slirub; stem white-silky, terete or nearly so, 

 flexuous; internodes elongated (often 1.5-2 dm. in length); branches 

 widely spreading; leaves opposite, petiolate, ovate, caudate-acumi- 

 nate, rounded at the base, serrate, 3-ner^'ed from above the base,- 

 pale-green and shortly gra\-silky above, canescent and silky-tomen- 

 tose beneath, 7-15 dm. long, 4-10 cm. wide; petioles white-silky, 

 about 3 cm. long; heads small, in ample panicles, about 20-flowered, 

 about 5 mm. high; involucre campanulate; the scales regularly 

 graduated, fusco-stramineous, obtusish to rounded at the tip; re- 

 ceptacle ele\'ated, aheolate, densely woolly; corollas (doubtfully 

 reported as ^•iolet) 3 mm. long, the proper tube slightly exceeding the 



