EUPATORIUMS OF PERU. 55 



branch bearing a few leaves and a very large, fairly mature head flanked 

 by two heads still in bud. 



21. E. L.\VANDULAEFOLiu]M DC. Slender branched shrub; branches 

 suberect, when }'oung densely clothed with yellowish- white wool; 

 internodes 2—4 cm. long; leaves opposite, subsessile, linear, entire, 

 slightly narrowed to an obtusish point, strongly revolute on the margins, 

 2-3 cm. long, 1.3-3.4 mm. wide, above glabrate, buUate-rugulose, 

 beneath white-woolly; heads glomerate at the ends of the branches of 

 small terminal panicles, subsessile, 9-10-flowered, about 8 mm. high; 

 in\'olucre narrowly campanulate, 3-4-seriate; scales graduated, thin, 

 scarioso-stramineous, obtusish, the outermost somewhat woolly; corollas 

 conspicuously granulate toward the limb. — Prod. v. 154 (1836). — 

 Peru without locality: in valleys of the Andes, Haenke (Gr.), from 

 South America, presumably Peru, Dombcy (fragm. and sk. Gr.). 



22. E. CHOTENSE Hieron. Erect branching shrub attaining 5 dm. 

 in height; branches round, when young cinereous-tomentose, soon 

 only sordid-arachnoid, internodes 2-7 (the uppermost as much as 12-15) 

 mm. long; leaves opposite, shortly but distinctly petiolate, linear- 

 oblong, obtuse, 3.4-4.5 cm. long, 4-6 mm. wide, distinctly feather-veined, 

 the lateral veins 20 or more on each side, leaving the midnerve at a 

 large angle (about 80° -85°), upper surface glabrous, lucidulous, buUate- 

 reticulated, the lower gray-tomentose, margin strongly revolute and 

 from the depressed veins appearing crenulate; corymbs compound, 

 terminal, strongly convex subhemispherical, 3 cm. in diameter; heads 

 10-11 -flowered; involucre subcylindric, multiseriate in the manner of 

 § Cylindrocephala but of looser nature, the scales about 24, scarioso- 

 stramineous, the inner purple-tinged toward the somewhat narrowed 

 but at the apex rounded tips, the short outer scales webby-wooUy; 

 corollas glabrous, slightly enlarged upward, about 4 mm. long; achenes 

 dark, nearly or quite smooth, about 2 mm. long. — Hieron. in Engl. 

 Bot. Jahrb. xxx\-i. 466 (1905). — Cajamarca: between Chota and 

 Cutervo, von Jehki, no. 794 (Berl., fragm. Gr.); near Cutervo, von 

 Jelski, no. 631 (Berl., fragm. Gr.). 



23. E. VoLKENSii Hieron. Branching shrub, attaining a height 

 of 1 m. (Weberbauer) or 1.2-1.5 m. (Cook & Gilbert); branches at first 

 slightly pubescent, at length glabrate; leaves opposite, linear-lanceolate, 

 narrowed to an acutish or mucronulate tip, cuneate at base, crenate- 

 serrate (teeth scarcely 1 mm. high, as much as 3.5 mm. wide), above 

 scabrid-puberulent, beneath white-pubescent, feather-veined (the more 

 prominent veins 8-10 on each side), chartaceous, 6-12 cm. long and 



.9-19 mm. wide, the reticulated veinlets depressed above, prominulent 



