88 NORTH AMERICAN FLORA [VoLUME 33 
to a sessile base, bright-green and glabrous or minutely pubescent above, paler beneath and 
sparsely pubescent with short white hairs, 10-12 cm. long, 8-12 mm. wide; inflorescence loose, 
subumbellate, flattened, 1 dm. broad; heads 13-flowered; involucre campanulate-turbinate, 
6-7 mm. high; scales loosely imbricate in few series, purple, at least at the margin, glabrous © 
or nearly so on the back, thinly ciliate, the outer sharply acute, the inner subacute and mucron- 
ate to sharply acute, resinous; achenes minutely pubescent on the ribs, resinous in the furrows, 
3 mm. long; pappus purple, the bristles 5-6 mm., the scales 0.5—0.6 mm. long. 
TYPE LOCALITY: Eustis, Lake County, Florida. 
DISTRIBUTION: Florida. ¢ 
101. Vernonia Blodgettii Small, Fl. SE. U.S. 1160. 1903. 
Vernonia angustifolia pumila Chapm. Bot. Gaz. 3:5. 1878. 
Stems slender, erect, simple or branched at the base, 2-6 dm. high, glabrous or nearly 
so; leaves numerous and crowded below, few and scattered above, the largest at or near the 
base, the blades firm, linear or narrowly lanceolate, 4-8 cm. long, 3-8 em. wide, obtuse or 
acute, entire or minutely denticulate, glabrous above, sparsely short—pubescent and frequently 
glandular beneath; inflorescence loose, irregular; heads about 21—flowered; involucre broadly 
campanulate or hemispheric, 5 mm. high; scales few, appressed, loosely and irregularly imbri- 
cate, deltoid to lanceolate, glabrous or minutely puberulent at the tip, the outer sharply acute 
to subacuminate, the inner subacute to sharply acute, purple, or green at the center; achenes 
2.5 mm. long, pubescent on the ribs, very resinous and dark-dotted in the furrows; pappus 
tawny to almost white, the bristles 6 mm. long, the irregular scales 0.5—0.8 mm. long. 
TYPE LOCALITY: [Pine Key,] Florida. 
DISTRIBUTION: Southern Florida. 
102. Vernonia insularis Gleason, Bull. Torrey Club 33: 184. 1906. 
Stems herbaceous or suffruticose, erect, 6-10 dm. high, simple or sparingly branched, 
glabrous or minutely puberulent above; leaf-blades narrowly oblong-linear, 6-10 cm. long, 
8-12 mm. wide, obtuse or subacute, mucronate, entire, acute or narrowed at the sessile base, 
green and essentially glabrous above, minutely puberulent and glandular-dotted beneath;. 
inflorescence loose; heads 4-25, 18—29-flowered; involucre broadly campanulate or de- 
pressed-hemispheric, 5 mm. high; scales essentially glabrous, purple-tinged, membranous at 
the margin, the outer lanceolate, sharply acuminate, the inner oblong, abruptly acuminate 
or mucronate; achenes 2 mm. long, sparsely pubescent on the ribs, resinous in the furrows; 
pappus tawny, the bristles 6 mm., the scales 0.5 mm. long. 
TYPE LOCALITY: Eight Mile Rocks, Great Bahama. 
DISTRIBUTION: Bahama Islands. 
103. Vernonia ovalifolia T. & G. Fl. N. Am. 2:59. 1841. 
Vernonia noveboracensis latifolia A. Gray, Syn. Fl. N. Am. 17: 89, in part. 1884. 
Vernonia ovalifolia purpurea Gleason, Bull. Torrey Club 46: 248. 1919. 
Stems erect, simple or sparingly branched, 8-12 dm. high, glabrous or puberulent; leaf- 
blades variable in size and shape, typically elliptic-oblong to lance-ovate, 8-10 em. long, 
2-5 cm. wide, acute or short-acuminate, coarsely serrate, or entire toward the acute to obtuse 
or rounded base, smooth or scabrous above, glabrous, pale and glaucescent, or puberulent 
on the veins beneath, short-petioled or sessile; inflorescence flattened, loose; heads 18—21-flower- 
ed; involucre broadly campanulate, 5-6 mm. high; scales rather regularly imbricate, glabrous 
or minutely puberulent, ciliate, appressed at base, somewhat spreading at the carinately 
thickened, short-acuminate, cuspidate apex; achenes pubescent on the ribs, glabrous or sparsely 
resinous in the furrows, 3 mm. long; pappus tawny or rarely purple, the bristles 6 mm. long, 
the scales linear to oblong, 0.6—0.8 mm. long. 
‘TypE LocaLity: Middle Florida. 
DISTRIBUTION: Georgia, Florida, and Alabama. 
