EUPATORIUMS OF PERU. 45 
(3-5 dm. high) and branches curved-ascending to erect, terete, incurved- 
puberulent, the hairs minute, white, non-glandular; leaves opposite, 
lanceolate, about equalling the internodes, 2.5-3.5 cm. long, 5-10 mm. 
wide, subentire or remotely and obscurely 1-3-toothed on each side, 
3-nerved from the cuneate short-petioled or subsessile base, attenuate 
to a narrow but ultimately rounded tip, glabrous but often minutely 
pustulate above, finely appressed-pubescent on the nerves beneath; 
heads erect, terminal on the branches of 3-several-headed at length 
rather loose corymbs; pedicels 5-45 mm. long; involucre cylindric, 
the scales several-ranked and apparently graduated, the outer ovate 
to oblong, so excessively caducous as to have entirely fallen away in the 
material at hand; the inner linear-oblong to linear, all pale, stramineous, 
1-4-costulate, especially toward the narrowed but rounded tip, ciliolate, 
otherwise glabrous; florets about 44; receptacle flattish; corolla slen- 
derly tubular, lilac when fresh but drying dark-purple toward the scarcely 
dilated throat, 8.5 mm. long, glabrous; teeth 5, narrow, recurved; 
stamens with an oblong appendage; style-branches lilac, drying dark- 
purple, 6 mm. long; clavate, widely spreading; achenes prismatic, 
slightly tapering toward the often curved base, slender, 4.5 mm. long, 
finely appressed-pubescent, the faces grayish-brown, the ribs stra- 
mineous; pappus-bristles about 45, white, barbellate, nearly equalling 
the corolla— Ancacus: in an open formation consisting both of shrubs 
and herbs, especially bromeliads and cacti, alt. 2200-2500 m., at the town 
of Caraz, 19 May, 1903, Weberbauer, no. 3003 (Berl., phot. and fragm. 
r. 
In habit somewhat suggesting § Prazelis, but referred better to 
§ Cylindrocephala on account of its flattish receptacle and the nature 
of its involucre. Most nearly related to the preceding, but certainly 
distinct. : 
4. E. tarvicatum Lam. Encye. ii. 408 (1786); Bak. in Mart. Fl. 
Bras. vi. pt. 2, 286 (1876); Hieron. in Engl. Bot. Jahrb. xxxvi. 465 
(1905); Robinson, Proc. Am. Acad. liv. 273, 333, 346 (1918). £. 
resinosum Poepp. in Poepp. & Endl. Nov. Gen. ac Spec. iii. 54 (1845).— 
Casamarca: between Chota and Cutervo, von Jelski, no. 793, acc. to 
Hieron. 1. c. Loreto: Moyobamba, Mathews (Gr.). Cuzco: Santa 
Ana, Cook & Gilbert, no. 1493 (U. S.); Machu Picchu, alt. 2100 m., 
Cook & Gilbert, no. 1025 (U. S.). Huanuco: on open savannahs, 
subandean region, at Cassapi, Poeppig no. 1217 (Hofmus. Vienna, 
Phot. Gr.); without locality, Mathews, nos. 1361, 1362, and 1363 in 
part (allN. Y.). [Mex. to Argent.] 
5. E. teprocernatum DC. Prod. y. 148 (1836); Robinson, Proc. 


