June, 1923] 
GLEASON — BOLIVIAN SPECIES OF VERNONIA 
307 
40. V. Bakerana Britton, Bull. Torrey Bot. Club 18: 331. 1891. 
Yungas, Rusby 214J (type); Santa Cruz, Williams 1450; Apolo, Williams 
2452; Coripati, Bang 2i8g. 
41. V. densipaniculata Rusby, Bull. N. Y. Bot. Gard. 8: 126. 1912. 
Cargadira, Williams 1534 (type). 
Close to, if not identical with, V. velutina Hieron., authentic material 
of which has not been seen. 
42. V. mapirensis n. sp. 
Stems shrubby, 4 m. high, densely sericeous with erect, light-brown hairs; 
leaves thin, deep green, oblong-elliptic, the largest 15 cm. long by 5 cm. wide, 
acute or barely acuminate, entire, cuneate at base, on petioles 5-8 mm. long, 
glabrous and somewhat rugose above, paler green and shining below with 
dense sericeous pubescence, which is especially prominent on the con¬ 
spicuous, parallel, curved-ascending lateral veins; inflorescence terminal, 
freely branched, many-headed, bearing reduced leaves at the bases of the 
principal branches; heads 18-21-flowered, sessile, 8-20 mm. apart; in¬ 
volucre broadly campanulate when pressed, 6-7 mm. high; involucral 
scales loosely erect, or the outermost somewhat spreading, the inner narrowly 
lanceolate and acuminate, the outer acicular with a prominent carinate 
midvein, hirsute, especially above; corollas violet; achenes densely hirsute 
with erect hairs, about 2.5 mm. long; pappus dull brown, the bristles 5 mm. 
long. 
Vicinity of Mapiri, Buchtien 2462, 1533 (type, in the herbarium of the 
New York Botanical Garden). 
43. V. sordidopapposa Hieron., Engler’s Jahrb. 22: 697. 1897. 
Without precise locality, Kuntze (type or iso type). 
44. V. tristis Hieron., Engler’s Jahrb. 22: 683. 1897. 
Valley of the Rio Junta, Kuntze (type or isotype). 
45. V. pseudomollis n. sp. 
Stems closely and softly velutinous with yellowish-brown hairs; leaves 
firm, yellowish-green, the blades lanceolate, 10-15 cm. long by 2.5-4.5 cm. 
wide, acuminate, entire, abruptly narrowed to an obtuse or somewhat 
rounded base, on petioles 8-15 mm. long, above rugose and softly pubescent 
when young, becoming in age scabrellate with the persistent hair-bases, 
beneath densely and softly sericeous with grayish-white hairs; lateral veins 
10-15 pairs, curved-ascending and prominently parallel, impressed above, 
barely elevated above the pubescence beneath; inflorescence terminal, 
freely branched, bearing a few reduced leaves at the nodes; heads sessile, 
about 21-flowered, 5-15 mm. apart; involucre broadly campanulate, 5-6 mm. 
high, varying from almost glabrous to densely pubescent; outer scales 
subulate, the middle long-acuminate with a prominent carinate midvein, 
the inner sharply acute or acuminate, flat, thin, and frequently spreading; 
achenes 1.5 mm. long, sericeous-hirsute; pappus white or pale straw- 
colored, the bristles 4.5-5 mm. long, the paleae oblong-linear, 0.7 mm. long. 
Yungas, alt. 6000 ft., Rusby 1658 (type, in the herbarium of Columbia 
University); Apolo, Williams 1432. 
