\ 
EUPATORIUMS OF VENEZUELA. 337 
j. Leaves thickish and velvety or firm and subcoriace- 
ous k., 
k. Heads in thyrsoid panicles; scales rounded or ob- 
use at the somewhat narrowed tip; stem glabrate 
. E. morifolium. 
k. Heads in a corymbosely branched flattish-topped 
panicle; scales acute; stem tomentose. ..20. EH. Vargasianum. 
j. Leaves thin and delicate, glabrous, rhombic-ovate 
21. E. tenuifolium. 
i. Herbaceous perennial; heads 20-25-flowered . .22. EF. pycnocephalum. 
a, Annual; leaves thin, ovate; heads small, in an open panicle 
23. E. microsiemon. 
12. E. TOVARENSE Robinson (see p. 259). Branches slender, 
virgate, leafy, sordidly puberulent; leaves opposite, short-stalked, 
lance-oblong, attenuate-acuminate, cuneate at the base, feather- 
veined, 7-11 em. long, 2.8-3.3 em. wide, remotely and obscurely 
cuspidate-denticulate, membranaceous, green on both surfaces, gla- 
brous above, puberulent on the veins and atomiferous beneath; petiole 
about 1 em. long; panicle divaricately branched, leafy-bracted, 
puberulent, its branches naked toward the base; pedicels 1-3 mm. 
long; heads about 13-flowered, 6 mm. high, 3.5 mm. in diameter; 
involucre campanulate; scales about 21, stramineous-scarious, 3—4- 
seriate, dorsally puberulent toward the rounded tip, mostly ‘3-nerved 
and 2-4-ribbed ; corollas 3 mm. long, microscopically granulate on 
the outside of the limb, the proper tube about equalling the slightly 
but distinctly enlarged throat; achenes 1.5 mm. long, black, slightly 
Papillose on the angles; pappus-bristles about 36, white, delicately 
game Méripa: near Tovar, alt. 1200 m., Fendler, no. 1947 
: 13. E. Squesn Rusby (see p. 258). Tall perennial herb or 
“irgate-branched shrub; stem smooth, green; leaves opposite, short- 
Petioled, oblong, narrowed to both ends, short-acuminate at apex, 
usually rounded at base but sometimes slightly decurrent on the 
both a rePand-dentate, feather-veined, membranaceous, green on 
Hh end aces, glabrous throughout or sordid-puberulent on the mid- 
veins beneath, 9-22 cm. long, about half as wide; panicle 
Als e segrngs leafy-bracted to the middle, as much as 3 dm. long 
(on short « in diameter, its branches divaricate, some bearing heads 
about 29 Secondary branchlets) almost or quite from the base; heads 
Scarious: ‘flowered, 6 mm. high; involucre pale straw-colored and 
igs scales in 34 series, graduated, dorsally somewhat pubescent 
the rounded apex; corollas yellowish-white; achenes black, 
13 , 
e oT Detta Amacuro: Paloma, Rusby & Squires, no. 2 
