48 ROBINSON 
el Cnn: East Velasco, alt. 200 m., Kuntze (N. Y., U. S., phot. Gr.). 
The Bolivian form of this species is the one with leaves prevailingly. 
opposite being the FE. tetranthum of “arenes arta 
17. E. iresinoides HBK. Nov. Gen. et Spec. iv. 106, t. 340 
(1820); Britton, Bull. Torr. Bot. Club, xviii. 333 (1891); aah ies 
Proc. Am. Acad. liv. 285, 338, 352 (1918). 
L v. Onasumos, near La Paz, alt. 3050 m., Rusby, no. 1637 (N. Y.) 
arth wis: to Panama, Venezuela, and some of the Lesser Antilles. ] 
The Bolivian form is the typical one (var. villosum Steetz). 
18. E. morifolium Mill. Dict. ed 8, no. 10 (1768); Robinson, 
Proc. Am. Acad. liv. 293, 339, 352 (1918). E. megaphyllum Bak. 
in Mart. Fl. Bras. vi. pt. 2, 322 (1876); Ktze. Rev. Gen. iii. 148 
(1898); Rusby, Bull. N. Y. Bot. Gard. iv. 378 (1907). 
A : Prov. North Yungas: near the river, on dry gravelly soil, — 
pata, Borg, no. 2298 (Gr., N. Y., U. 8., Mo.), a plant 1.5-1.8 m. high, no 
dusty vi rated 
Pie Chiquitos; = Santa Cruz, alt. 800 m., Kuntze (N. Y.). 
(Widely distrib. Mex. to Argent.| 
Somewhat variable in leaf-breadth, aoe of pubescence, and 
number of florets, but in all other respects remarkably constant. 
The Bolivian form is the one with oblong-ovate or lance-ovate leaves, 
which has been called E. megaphyllum. 
19. E. patens D. Don. Shrubby; branches usually pubescent at 
least when young; leaves opposite, petiolate, ovate-oblong to 
-lanceolate, the lower more or less cordate, the rameal usually cuneate 
at the base, acute, entire for most of their length but commonly with 
1-3 sharp and rather prominent teeth on each side near base; heads 
7-12-flowered, about 1.3 em. high, 5 mm. in diameter, glomerate in 
small dense corymbs terminating the slender widely spreading 
branches; involucre about 3-seriate, its scales about 15, very unequal, 
commonly arranged somewhat definitely in about 5 upright series 
(along orthostiches), ovate to lance-elliptical, ciliate, at least the 
outer more or less granular-puberulent dorsally; corollas slenderly 
tubular, pale-greenish, about 6 mm. long, the short proper tube and 
lower portion of the scarcely enlarged throat granular-puberulent, 
the upper portion of the throat glabrous, slightly contracted below 
the short limb; achenes 3.5 mm. long, attenuate toward the base, 
hispid on the light-colored angles and somewhat so on the darker 
faces; pappus-bristles about 30, barbellate——D. Don in Hook. & 
Arn. Comp. Bot. Mag. i. 242 (Mar. 1836); Bak. in Mart. Fl. Bras. 
