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-ne^^'ed from the cuneate short-petioled or subsessile base, attenuate 

 to a narrow but ultimatel^' rounded tip, glabrous but often minutely 

 pustulate above, finely appressed-pubescent on the ner\es beneath; 

 heads erect, terminal on the branches of 3 -several-headed at length 

 rather loose corymbs; pedicels 5^5 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. — Ancachs : in an open formation consisting both of shrubs 

 and herbs, especially bromeliads and cacti, alt. 2200-2500 m., at the town 

 of Caraz, 19 Mav, 1903, Weberbauer, no. 3003 (Berl., phot, and fragm. 

 Gr.). 



In habit somewhat suggesting § Praxelis, but referred better to 

 § Cylindwcephala on account of its flattish receptacle and the nature 

 of its involucre. Most nearly related to the preceding, but certainly 

 distinct. 



4. E. LAEViGATUM Lam. Encyc. ii. 408 (1786); Bak. in Mart. Fl. 

 Bras. vi. pt. 2, 286 (1876); Hieron. in Engl. Bot. Jahrb. xxx^d. 465 

 (1905); Robinson, Proc. Am. Acad. liv. 273, 333, 346 (1918). E. 

 resinosum Poepp. in Poepp. & Endl. Nov. Gen. ac Spec. iii. 54 (1845). — 

 Cajamarca: between Chota and Cutervo, von Jelski, no. 793, ace. 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.). Hu.\nuco: on open savannahs, 

 subandean region, at Cassapi, Poeppig no. 1217 (Hofmus. Vienna, 

 phot. Gr.); without locality, Mathews, nos. 1361, 1362, and 1363 in 

 part (all N. Y.). [Mex. to Argent.] 



5. E. LEPTOCEPiL\LUM DC. Prod. V. 148 (1836); Robinson, Proc. 



