78 NORTH AMERICAN FLORA [VOLUME 33 
Stems suffrutescent, erect, 1-3 m. high, branching above, pubescent or becoming glabrous; 
leaf-blades thin, oblong-lanceolate to broadly ovate, 4-11 cm. long, 2—4 cm. wide, short- 
acuminate, entire, rounded or obtuse at base, rugose or nearly flat, scabrellate above, softly 
strigose-pubescent and resinous-dotted beneath, with prominently reticulate veins; petioles 
3-5 mm. long;-inflorescence large and loose, 1-3 dm. wide, with comparatively few spreading 
branches 8-20 cm. long; heads about 1 cm. apart, 21-flowered; involucre campanulate, 
4—5 mm. high; scales loosely imbricate, erect, thinly villous, the middle and outer narrowly 
triangular-subulate, the inner lanceolate, acuminate; achenes 2 mm. long, hirsute; pappus 
white, the bristles 4 mm. long, the scales narrow, variable in length from 0.4-1.1 mm. 
TYPE LOCALITY: Peru. 
DISTRIBUTION: Southern Mexico to tropical South America. 
ILLUSTRATION: H.B.K. Nov. Gen. & Sp. pl. 317. 
65. Vernonia mollis H. B. K. Nov. Gen. & Sp. 4: 36. 1818. 
Cacalia mollis Kuntze, Rev. Gen. 970. 1891. 
Stems shrubby, closely cinereous-tomentose; leaf-blades firm, flat, sessile or nearly so, 
4-6 cm. long, 2-3 cm. wide, acuminate, entire or undulate, obtuse or rounded at base, thinly 
sericeous-hirsute above, finely gray-tomentose beneath, the tomentum concealing the resinous 
glands, the lateral veins obscure and reticulate; cymes short and crowded, terminating the 
stem and upper branches; heads 21—flowered; involucre broadly campanulate, 4-5 mm. high; 
scales regularly imbricate, appressed at base, somewhat spreading at the apex, narrowly 
linear-triangular, villous throughout, the prominent midvein prolonged into a glabrous 
subulate tip; achenes hirsute; pappus white, the bristles 4.5 mm. long, the scales very broad, 
0.8—0.9 mm. long. 
TYPE LOCALITY: Colombia. 
DISTRIBUTION: Guatemala; also in tropical South America. 
66. Vernonia stellaris Llave & Lex. Nov. Veg. Descr. 1: 23. 1824. 
Vernonia Deppeana Less. Linnaea 6: 398. 1831. 
Cacalia Deppeana Kuntze, Rev. Gen. 969. 1891. 
Cacalia stellaris Kuntze, Rev. Gen. 970. 1891. 
Stems shrubby, freely branched, pubescent or tomentose, 2-5 m. high; leaf-blades thin, 
oblong or narrowly elliptic, 8-10 em. long, 2.5—3.5 cm. wide, acute, entire or obscurely serrate, 
narrowed or rounded at base, scabrellate with papillose hairs above, tomentose or floccose 
with ferruginous hairs beneath, on petioles 8-12 mm. long; inflorescence widely branched, 
pyramidal or hemispheric, 1-3 dm. broad; heads 18—21- (rarely 11-) flowered; involucre 
campanulate, 3-4 mm. high; scales loosely but regularly imbricate, erect or appressed, the 
outer ovate, acute or acuminate, pubescent, the inner oblong, acute or subacute, glabrous or 
puberulent, arachnoid-ciliate; achenes sharply ribbed, 2.5 mm. long, pubescent; pappus 
tawny, the bristles 4 mm. long, the scales very narrow, about 0.5 mm. long. 
TYPE LOCALITY: San José del Corral [near Cordoba, Veracruz]. 
DISTRIBUTION: Central Mexico to Costa Rica. 
67. Vernonia morelana Gleason, Bull. Torrey Club 46: 241. 1919. 
Stems shrubby, branching above, 3-5 m. high, closely gray-tomentose, becoming glabrate 
with age; leaf-blades firm, dull-green, ovate-oblong, 6-8 cm. long, 2.5—3 cm. wide, entire or 
remotely serrate, obtuse or rounded at each end, closely scabrous-pubescent above, finely 
gray-tomentose beneath, on tomentose petioles 8 mm. long, the upper leaf-blades similar 
but smaller and more densely tomentose, those in the cymes broadly ovate to subrotund, 
5-15 mm. long; cymes freely branched, forming a hemispheric cluster 2 dm. broad; heads 
21-flowered; involucre campanulate, 4-4.5 mm. high; scales regularly imbricate, all appressed 
or barely spreading, the outer and midddle ovate to ovate-oblong, sharply acute or cuspidate, 
tomentose-ciliate and frequently puberulent, the inner lanceolate, sharply acute to sub- 
acuminate, nearly or quite glabrous; achenes thinly pubescent and densely resinous-glandular; 
pappus white or pale-tawny, the bristles 6 mm., the narrow scales 0.6—-0.8 mm. long. 
TYPE LOCALITY: Cuernavaca, Morelos. 
DISTRIBUTION: Morelos. 
