PaRT 1, 1922] ; CARDUACEAE: VERNONIEAE 73 
acute; achenes 4 mm. long; pappus pale sordid-purple, the bristles 7 mm., the linear outer 
scales 1-1.3 mm. long. 
TYPE LOCALITY: Near Havana, Cuba. 
DISTRIBUTION: Cuba. 
ILLUSTRATION: Ark. Bot. 13*5: pl. 7, 7.3, 5. 
48. Vernonia viminalis Gleason, Bull. N. Y. Bot. 
Gard. 4: 184. 1906. 
Stems suffrutescent, terete, finely striate, cinereous or tomentose, divaricately branching 
above; leaf-blades thin, ascending, narrowly oblong or elliptic-oblong, 8-14 cm. long, 1-3 cm. 
wide, somewhat falcate or asymmetric, long-acuminate, entire or minutely denticulate, 
attenuate at base, rugose and scabrellate above, appressed-villous with soft white hairs beneath; 
petioles none or very short; cymes numerous, 2—3 dm. long, flexuous; bracteal leaves resembling 
the cauline, 2-5 cm. long; heads about 29-flowered, sessile, 1.5-3 cm. apart; involucre cam- 
panulate, 9-10 mm. high; scales appressed, closely imbricate in many series, acuminate and 
sharply cuspidate the outer ovate-lanceolate, the inner narrowly oblong, the exposed portion 
densely tomentose, especially along the margin; achenes glabrous, sharply angled, 3.5 mm. 
long; pappus yellowish-white, the bristles 8 mm. long, the outer scales broad, fimbriate-ciliate, 
0.5 mm. long. 
TYPE LOCALITY: Cuba. 
DISTRIBUTION: Cuba. 
ILLUSTRATION: Ark. Bot. 13": pl. 1, f. 1. 
49. Vernonia fallax Gleason, Bull. Torrey Club 40: 324. 1913. 
Stems shrubby, erect, 1 m. high, sparingly branched, closely gray-tomentose; leaf-blades 
firm, narrowly elliptic-oblong, 5-10 cm. long, 1.5—2.5 em. wide, acute, mucronate, entire or 
obscurely spinulose-denticulate, narrowed to an acute base, thinly puberulent, especially on 
the veins, and minutely glandular-punctate above, finely and closely gray-tomentose beneath; 
veins elevated and prominent, but not conspicuously reticulate; petioles 1-2 mm. long, 
tomentose; inflorescence terminal, pyramidal, of 4-10 short, spreading or recurved cymes 
bearing each 3-7 secund, 21-flowered heads; involucre broadly campanulate or subhemispheric, 
6-7 mm. high; scales appressed, closely imbricate, the outer ovate-triangular, acute and 
cuspidate, the middle densely villous, the inner narrowly oblong-linear, minutely puberulent 
beneath the strigose pubescence of long white hairs; achenes with a few resinous glands; 
pappus pale-brown, the bristles 6 mm. long, the scales broad, 0.8 mm. long, finely fimbriate- 
ciliate. 
TYPE LOCALITY: Trinidad Mountains, Santa Clara, Cuba. 
DISTRIBUTION: Cuba.’ 
50. Vernonia aceratoides Gleason, Bull. Torrey Club 
40: 325. 1913. 
Vernonia inaequiserrata angustifolia Griseb. Cat. Pl. Cub. 144. 1866. 
Vernonia inaequiserrata obtusifolia Griseb. Cat. Pl. Cub. 144. 1866. 
Vernonia linguaefolia Ekman, Ark. Bot. 131°: 19. 1914. 
Stems slender, apparently herbaceous, closely gray-tomentose; leaf-blades firm, narrowly 
oblong-lanceolate to lance-linear, 7-8 cm. long, 1-1.2 cm. wide, acute and mucronulate or 
obtuse, entire or somewhat repand, obtuse or rounded at base, minutely scabrellate and 
resinous above, and puberulent along the midvein, finely brown-tomentose beneath; veins 
prominent beneath and conspicuously reticulate; petioles 2-3 mm. long; cymes few, short, 
divaricate, bearing 6-12 heads each; bracteal leaves oblong, proportionately narrower than 
the cauline, the upper not exceeding the 11—13-flowered heads; involucre narrowly campanu- 
late, 5-6 mm. high; scales closely and regularly imbricate, appressed, tomentose toward the 
tip, finely and softly villous at the base and middle, the outer ovate-triangular, cuspidate, the 
inner oblong-ovate, subacute and apiculate; pappus nearly white. 
TYPE LOCALITY: Cuba. 
DISTRIBUTION: Cuba. 
ILLUSTRATIONS: Ark. Bot. 13": pl. 1, f. 6, 7. 
