328 ROBINSON. 
oblong, attenuate or acuminate, serrate except at the much contracted 
petiolar base, light-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 § Hebeclinium was first 
indicated, and xxviii. 576 (1901); Robinson, Proc. Bost. Soe. Nat. 
Hist. xxxi. 251 (1904). E. Rusbyi Britton, Bull. Torr. Bot. Club, 
xviii. 334 (1891). 
Cunprnamarca: Arroya ‘‘Guayabetal,” alt. 1300-1500 m., Pennell, no. 
1750 (Gr.); dry cliff, “Susumuco,” alt. 1400 m., Pennell, no. 1353 (Gr.). 
Mera: moist bank, Villavicencio, alt. 500 m., Pennell, no. 1508 (Gr.)- 
Ex Vauue: borders of woods and in clearings of thick moist woods, on the 
Cordillera Occidental, Calf, 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, 20 
5964, ace. to Hieron., |. 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 case 
exhibiting a thickened and somewhat lignescent base as if perennia\ 
91. E. sericeum HBK. Tall vigorous perhaps climbing herb or 
more likely soft-wooded shrub; stem white-silky, terete or nearly 9% 
flexuous; internodes elongated (often 1.5~2 dm. in length); branche 
widely spreading; leaves opposite, petiolate, ovate, caudate-acuDy 
nate, rounded at the base, serrate, 3-nerved from above the base, 
pale-green and shortly gray-silky above, canescent and silky-tomenr” 
tose beneath, 7-15 dm. long, 4-10 cm. wide; petioles white-silky, 
about 3 cm. long; heads small, in ample panicles, about 20-flo , 
s re 
tip; 
btfully 
the 
about 5 mm. high; involucre campanulate; the scale 
graduated, fusco-stramineous, obtusish to rounded at the 
ceptacle elevated, alveolate, densely woolly; corollas (dou! 
reported as violet) 3 mm. long, the proper tube slightly exceeding 
