(193 ) 
the base into short petioles, glabrous on both sides, paler green 
and glaucescent beneath; inflorescence sparingly branched, leafless ; 
heads all sessile; involucre obconic or narrowly campanulate, 4 
h; scales few, loosely imbricated, appressed, the outer 
narrowly lanceolate, pubescent at the acuminate tips, the inner ob- 
long-lanceolate, acute, nearly glabrous; achenes 2 mm. long, ob- 
scurely angled, pubescent; pappus rufescent, 5 mm.long. 
Type: Smcth & Smith 992, from St. Vincent Island; in the 
herbarium of Columbia University. 
(ii) Species-group Scorpioides 
Heads in short or long, straight or curved, mostly unbranched 
cymes, about 21-flowered; leaves broad, thin, acute or acuminate. 
Species of South America, extending north to Nicaragua and Costa 
ica. 
49. VERNONIA BRACHIATA Benth. Vidensk. Meddel. 1852: 67. 
1852 
Apparently herbaceous; branches glabrate, strongly angled ; 
leaves thin, broadly elliptic, 10-13 cm. long, 4-6 cm. wide, or the 
lower much larger, acute or cubdenniae serrulate or entire, 
gradually attenuate to an obtuse base nearly glabrous on both sides, 
short-petioled; inflorescence 1-3 dm. high, freely branched; cymes 
1-2 dm. long, straight; ae aie. ag aia less than I cm. 
apart ; involucre campanulate, 3-4 m high ; scales loosely im- 
bricated, the outer acct Genep Bee the inner oblong to oblong- 
lanceolate, all acute and ciliate; achenes sparsely short-hirsute ; 
pappus tawny-yellow. 
Type locality: Costa Rica. 
Distribution: Costa Rica, Prttzer 3740, 6716, 9715, and south 
into South America. 
Distinguished from V. scorpiotdes by the attenuate obtuse leaf- 
bases and short petioles. 
50. VERNONIA SCORPIOIDES (Lam.) Pers. Syn. 2: 404. 1807 
Conyza scorpioides Lam. Encyc. 2: 88. 1786. 
Shrubby; branches terete, softly pubescent; leaves ovate, long- 
acuminate, abruptly narrowed into a short cu neate base, pubescent 
beneath; petioles 2-3 cm. long; cymes short, crowded, curved. 
Type locality: Brazil. 
Distribution: Nicaragua, Lévy 370, and throughout tropical 
South America. 
