(185 ) 
cordate at base, rugose but Eelabrous and shining above, puberulent 
and prominently reticulate beneath; heads in lon 
leaves resembling the cauline, 3-5 cm . long; involucre campanulate- 
cylindric, 8-9 mm high; scales all appressed, arachnoid-ciliate, 
tapering to a cuspidate ti 
Type locality and da noateu: Cuba, Wright 2785. 
(vii) Species-group Dévaricatae 
Heads in leafy cymes, 11-18-flowered ; scales obtuse or subacute ; 
leaves thinly pubescent or nearly glabrous. Three species, all 
Jamaican. 
29. VERNONIA DIVARICATA Sw. Fl. Ind. Occ. 3: 1319. 1806 
Vernonia acuminata —— Linnaea 6: 663. 1831. 
A straggling shrub, 1.3~1.6 m. high, with slender, striate, pubes- 
cent, branching stems; leaves thin, bright-green, elliptic 5 —6 cm. 
long, 1.3-1.8 cm. wide, long-acuminate, entire, narrowed at the 
base, sparsely and minutely pubescent on both sides, paler green 
beneath; inflorescence of numerous lax, divaricately spreading, 
many headed cymes; lower bracteal leaves approximating the 
cauline in size and shape, the uppermost 1-2 cm. long; nae ses- 
sile, distant, 11-flowered; involucre campanulate, 4-5 m igh; 
scales appressed, ere deat pees glabrous, te outer 
ovate-lanceolate, acute, the inner o g, tapering to an obtuse or 
subacute tip; achenes densely ee 2 mm. ie pappus 
rufescent, 4-5 mm. long. 
Type locality and distribution: Jamaica 
Lessing’s V. acumznata is described with aggregated heads, re- 
sembling JVichols 20 and 120, a character possibly due merely to 
habitat, since the latter grew at an altitude of 5,000-7,400 feet. 
30. Vernonia albicoma sp. nov. 
Stem woody, striate, glabrous or pube eee slender; leaves 
a bright-green, elliptic or allistie. lanceolate, 5-6 cm. long, 
I.5~2.3 cm. wide, acuminate, subentire, oo at the base, 
glabrous to the touch above, but finely pubescent under the 
very finely pubescent or glabrous beneath; petioles 5~7 mm. long 
nal c 
bracteal leaves lance-oblong, the middle ones about equaling the 
involucre, which is broadly campanulate or hemispheric, 5 mm. 
high ; scales erect, loosely and irregularly imbricated, nearly gla- 
brous, the outer lanceolate, acuminate; inner oblong, acute; 
achenes densely pubescent; pappus whit 
