PART 1, 1922] CARDUACEAE: VERNONIEAE 63 
14. Vernonia gnaphaliifolia A. Rich. in Sagra, Hist. 
Cuba 11: 34. 1850. 
Vernonia arborescens Griseb. Cat. Pl. Cub. 144. 1866. Not V. arborescens Sw. 1806. 
Vernonia sublanata Gleason, Bull. N. Y. Bot. Gard. 4: 177. 1906. 
Vernonia crassinervia Wright; Gleason. Bull. N. Y. Bot. Gard. 4: 180. 1906. 
Vernonia gnaphaliifolia platyphylla Gleason, Bull. Torrey Club 46: 238. 1919. 
Stems herbaceous or suffruticose, 1 m. high or less, slender, thinly pubescent; leaf-blades 
broadly elliptic to oblong-obovate or oblong-lanceolate, 3-5 cm. long, 1-2 cm. wide or rarely 
narrower, acute or obtuse, entire or undulate, usually somewhat revolute, narrowed to an 
acute or obtuse base, rugose and papillose-hirsute above, or scabrous with the persistent 
hair-bases, closely gray-pubescent, resinous beneath the hairs, and veiny beneath (leaf-blades 
flat, broadly elliptic and tomentose beneath in the variety); petioles 3-4 mm. long; inflorescence 
divaricately branched, the cymes lax, 5-15 cm. long, somewhat crowded in the upper axils, 
bearing 3-6 heads; bracteal leaves oblong, the upper equaling the involucre, the lower twice 
as long; heads 1—2 cm. apart, about 21-flowered; involucre hemispheric, 7 mm. high; scales 
loosely and irregularly imbricate, narrowly lance-oblong, sharply acute, green with a scarious 
margin, villous below, becoming glabrate at the middle and puberulent at the apex; achenes 
densely pubescent, 3 mm. long; pappus white or very pale-brown, the bristles 5 mm., the 
scales 0.7 mm. long. 
TYPE LOCALITY: Near Canasi, Cuba. 
DISTRIBUTION: Cuba. 
ILLUSTRATION: Ark. Bot. 1315: pl. 4, f. 1, 2 
15. Vernonia angustata Gleason, Bull. Torrey Club 40: 309. 1913. 
Vernonia sublanata angustata Gleason, Bull. N. Y. Bot. Gard. 4: 177. 1906. 
Stems herbaceous, slender, puberulent or thinly pubescent, sparingly branched above; 
leaf-blades thin, flat, spreading, narrowly oblong with parallel sides, 3-5 cm. long, 4-8 mm. 
wide, obtuse or rounded, mucronate, entire, acute at the base, thinly pubescent above, thinly 
gray-tomentulose and resinous-dotted beneath, one-nerved; petioles 1-2 mm. long; cymes few, 
widely spreading or horizontal, simple or sparingly branched, bearing each 2—7 heads separated 
by internodes 1-2 cm. long, depressed or gently curved between the heads; bracteal leaves 
like the cauline but gradually reduced in size, the upper only 1 cm. long; heads about 18- 
flowered; involucre broadly campanulate, 6-7 mm. high; scales loosely and irregularly 
imbricate, strigose-pubescent especially at the base and apex, thinly resinous-dotted, 
acuminate or sharply acute, the outer lanceolate, the inner narrowly oblong; achenes pubes- 
cent, 2 mm. long; pappus white, the bristles 6 mm., the scales 0.9 mm. long. 
TYPE LOCALITY: Santiago, Cuba. 
DISTRIBUTION: Cuba. 
16. Vernonia membranacea Griseb. Cat. Pl. Cub. 144. 1866. 
Stems suffrutescent, 5-10 dm. high, freely branched above, finely pubescent or glabrate; 
leaf-blades thin, spreading, broadly elliptic or ovate-oblong, 5-8 cm. long, 2.5-4 cm. wide, 
obtuse or subacute, entire, obtuse at the base, sparsely papillose-puberulent and not resinous 
above, closely and finely appressed-pubescent and resinous beneath, on petioles 3-5 mm. 
long; bracteal leaves elliptic-oblong, the lower 2-3 cm. long, the upper equaling the heads; 
cymes short, spreading, sparingly branched; heads 1—2 cm. apart, secund, about 21-flowered; 
involucre campanulate, 6-7 mm. high; scales appressed, closely imbricate, green with a 
scarious margin, the outer lance-subulate, the inner linear-oblong, sharply acute, thinly 
villous or appressed-strigose and glandular at the tip; achenes hirsute, 2 mm. long: pappus- 
bristles pale-brown, 5.5 mm. long, the scales very irregular in width, paler in color, 0.5 mm. 
long. 
TYPE LOCALITY: Cuba. 
DISTRIBUTION: Cuba. 
ILLUSTRATION: Ark. Bot. 131: pl. 4, f. 3. 
