EUPATORIUMS OF PERU. 75 
broadest about a sixth of the length above the entire rather rapidly 
narrowed base, gradually attenuate to an acutish tip, about 3 cm. 
long, 7-8 mm. wide, thickish-membranaceous and of rather firm tex- 
ture, 3-ribbed from near the base, serrate from the broadest part to 
the tip, teeth about 8 on each side slightly curved outward, the lowest 
narrow and often slightly longer than the rest; petiole about 2 mm. 
long; corymb compound, many-headed, round-topped, rather dense, 
6-9 em. in diameter, leafy-bracted; heads sessile or short-pedicelled, 
about 4-flowered, 4 mm. long; corollas white, glabrous, slightly 
enlarged upward, fragrant; style-branches filiform, slightly thickened 
at the summit; pappus-bristles hispid-pubescent.— Nov. Gen. et ; 
Spec. iv. 125 (1820). Ophryosporus chilea (HBK.) Hieron. in Engl. 
Bot. Jahrb. xxii. 706 (1897).— Casamarca: at the base of Mt. Sta. 
Polonia, near the city of Cajamarca, Humboldt & Bonpland, no. 3682 
(Par., phot. Gr., Berl., phot. Gr.). 
This and the two following species are very closely related and with 
the Bolivian E. eleutherantherum Rusby form a group doubtfully 
intermediate between Eupatorium and Ophryosporus. Their final 
disposition must await better and far more copious material than is 
yet available- 
E. arrineE HBK. Glabrous shrub, closely resembling the 
preceding; differing chiefly in its larger leaves (4 cm. long and 1.6 cm. 
wide) and longer petioles (8-10 mm. in length), also in its more loosely 
branched panicle, and 5-6-flowered heads of somewhat greater size 
6 mm. long).— Nov. Gen. et Spee. iv. 126 (1820).— Casamarca: 
thought to have been collected with the preceding, Humboldt & 
Bonpland (Par., phot. Gr.). 
61. E. wepranruum Sch. Bip. Shrub, closely related to the two 
preceding, but the young branches and peduncles glandular-pubescent; 
leaves lanceolate or ovate-lanceolate, 1.5-2.5 cm. long, 5-12 mm. 
wide, acute at the apex, varying from obtuse to attenuate at the base, 
glandular-puberulent on both surfaces; petiole short and pubescent; 
eads in densish corymbs, about 7-flowered; involucral scales 7-8, 
subequal, linear, acutish.— Bonplandia, iv. 54 (1856), without 
descript.; Wedd. Chlor. And. i. 217 (1857), where first described; 
- Bip. Bull. Soc. Bot. Fr. xii. 82 (1865), without char.; not, how- 
ever, Rusby, Bull. N. Y. Bot. Gard. iv. 378 (1907).— Puno: moun- 
_ tains about Azangaro, Lechler, no. 1751; on stony slopes among 
‘herbaceous plants and scattered shrubs, Puno, alt. 3600 m., 19 Aug. 
1902, Weberbauer no. 1366 (Berl., fragm. Gr.). AREQUIPA: on 
Sparsely covered ground, on the west slope of the Volcano Misti, near 
