EUPATORIUMS OF PERU. 51 
h. Heads 14-30-flowered 
l. Perennial herbs or shrubs 
rhombic-ovate, ‘aowaatl to a subsessile 
BSR 2 2 ais Ae le cage Ee a ain < oui ain meena 47. E. inulaefolium. 
m. Leaves ovate-lanceolate to suborbicular, ‘obtuse, 
ase 
n 
panicles; pubescence of short light-colored hairs 
ait andeuoeee nor conspicuously jointed. 
8. E. gracilentum. 
ssuacest many, glomerate at ends of ae te 
open panicle, pubescence dense, 
a inp be hairs perceptibly dark-jointed. 49. E. Cookii. 
Middle and outer involucral scales 
rounded at the ip eee ie re tae ER 36. E. abefiide 
_— aap: above, a merely puberulent on the 
and ‘veins beneath 3.0352 ve es . BE. marginatum, 
l. Delicate: kisi leaves slomienpotiaied vie ue ce 51. E. microstemon. 
h. Heads 4. ka thasshoay <— 
eads numerous, apes ate or at least crowded at the 
ends of the branches in a leafy-bracted panicle; pedicels 
mostly 0-3:mm. long so 2.: ee A ee . E. Lobbii 
eads ss germ pia in ay open loose panicle; pedicels mostly 
m, long; iecchieeal scales — tri Ble o sy 52. E. vitalbae. 
Heads in fewcnealy 1—5)-headed corymbs; pedicels Ord 
mm. long; involucral scales 3-ribbed ............ 6. E. tahonense. 
350 avis) E chown HOR Ce 131; Robinson 1. e. a 4 
compactum Benth. Bot. Sulph. 112 (1844).— Lima: Huamantango, 
Barclay (K., phot. Gr.); Obrajillo, Wilkes Exp. (Gr.); Chicla, Ball, 
ace. to Ball, 1. ec. Ancacus: Prov. Cajatambo: on grassy plains with 
numerous scattered bushes, alt. 3400-3700 m., Ocros, 28 March, 1903, 
Weberbauer, no. 2682 (Berl., fragm. Gr.). Cue Ollantaytambo, alt. 
3000 m., Cook & Gilbert, nos. 330 (U. $.), 335 (U. S.); Pifiasniocj, 
Panticalla Pass, alt. 3600 m., Cook & Gilbert, no. 1809 (U. S.). 
In a recent paper the writer, |. c., endeavored to maintain E. arboreum 
K. as distinct from E. persiciiileuk. but the characters are so slight 
that it now seems impossible to keep these species satisfactorily apart 
or key them from each other with any clearness whatever. [Ecuad.] 
13. E. puppLearrotrum Benth. Pl. Hartw. 135 (1844); Robinson, 
Am. Acad. liv. 350 (1918).— Amazonas: Prov. Chachapoyas, 
Mathews (Gr.). [Ecuad. 
14. E. piscocor DC. Shrubby; branches flexuous, slender, hex- 
agonal, nearly smooth; leaves opposite, oblong-lanceolate, acuminate, 
