TROPICAL AMERICAN EUPATORIEAE 67 
interpreted, also the same pubescence, texture, venation, and serra- 
tion of the leaves; but have heads 18—22-flowered, showing in this 
respect some transition toward E. ignoratum Hieron. 
51. E. rufescens Lund. Much branched shrub, 1 m. or more in 
height, densely grayish-pubescent; branches terete, ascending; leaves 
opposite, broadly ovate, caudate-acuminate, obtusish to rounded at 
base, entire, undulate, or irregularly few-toothed at the sides, 3-5- 
nerved from a point about 1 cm. above the base, chartaceo-mem- 
branaceous, 1-1.5 dm. long and wide, above glabrous and green, 
beneath more or less persistently grayish-tomentose; petiole 2.5-3.5 
em. long; heads about 24-flowered in compound many-headed 
panicles (1-1.5 dm. in diameter); pedicels slender, curved or flexuous, 
often 1 cm. long; involucre turbinate-campanulate; scarcely half the 
length of the head; scales narrow, unequal and somewhat graduated, 
little imbricated, lance-linear, acutish, finely pubescent on the back; 
corollas tubular, purplish; pappus dirty-white; achenes glabrous 
(ace. to DC.) or shortly pilose (acc. to Bak.).—Lund ex DC. Prod. 
vy. 168 (1836); Bak. in Mart. Fl. Bras. vi. pt. 2, 348 (1876). E. sub- 
triplinerve Sch.-Bip. ex Bak. |. c., name only.—Varies as follows: 
[Var. typicum. Leaves of somewhat firm chartaceo-membrana- 
ceous texture, persistently and rather densely grayish-pubescent 
to -tomentose beneath—Lit. and synon. as above.—Atlantic Brazil, 
Rio Janeiro, Minas Geraes, etc.] 
Var. glabratum Hieron. Leaves thinner, more delicately mem- 
branaceous, green on both sides, somewhat paler beneath and from 
the first only sparingly pubescent except on the nerves, the surface 
glandular-punctate and marked with a fine network of dark veins.— 
Hieron. ex Kuntze, Rev. Gen. iii. 148 (1898), without char. 
CocHABAMBA: Prov. Tapacari, on the Rio Tapacari, alt. 3000 m., Kuntze 
(N. Y., phot. Gr.). 
52. E. camataquiense Hieron. Shrub, 2 m. high; branches puber- 
ulent, soon glabrate, suleate-angulate; internodes sometimes as much 
as 3.5 cm. long; leaves opposite, ovate-lanceolate, or ovate from a 
shortly cuneate base, acuminate, mucronate, entire or obsoletely 
1-2-dentate toward the middle, chartaceous, glabrate, somewhat 
3-nerved frem a point 5-10 mm. above the base, when well grown 
6.5 em. long and 2.7 cm. wide, reticulate-veiny, glandular-punctate; 
petioles 5-10 mm. long; heads 22—28-flowered, corymbed or cymose 
on the uppermost branches; pedicels 8 mm. long, puberulent, beset 
with 8-10 small alternate bracteoles; scales of the campanulate in- 
volucre about 12, subequal, linear-lanceolate, green, 3-nerved at 
