GLEASON: STUDIES ON WEsT INDIAN VERNONIEAE 315 
striking common feature here is the broad, rugose or buHate leaf 
with reticulate venation, closely invested beneath by a dense 
tomentum. In the Jamaican species-group Permolles, with simi- 
larly bullate or rugose leaves, the pubescence is densely sericeous- 
hirsute rather than closely tomentose, and in V. yunquensis the 
character of the involucral scales separates the species at once. 
The seven species may be distinguished as follows: 
I, Santo Domingan species; leaves oblong-ovate, truncate or 
su eens at base, obtuse, repand; bracteal leaves not 
ced; bgey: very flexuous. Vernonia fruticosa, 
TT; Pitts speci 
A. Inner in ae scales obtuse or rounded; leaves 
ovate-lanceolat 
B. Inner involucral scales sharply acute or acuminate. 
eaves oval to slice obtuse or narrowed 
at the base, rugose and finely papillose- 
pubescent above. 
a. Leaves more than half as broad as long, very 
lunt or rounded at the apex; straggling 
plant with white flowers. Vernonia calophylia. 
b. Leaves less than half as broad as long, nar- 
rowed to an obtuse or subacute apex; plant 
erect, with light blue flowers. Vernonia vicina. 
2. Leaves of a lanceolate or ovate type, broadest near 
t neate or subcordate base, strongly 
bullate and rugose above. 
a. Leaves acute or barely obtuse, 1 coceopsesite 
beneath; inflorescence loo n- 
gated; inner involucral ec broadest just 
below the middle. Vernonia neglecta. 
b. Leaves obtuse or rounded; inflorescence com- 
pact; cymes abbreviated; inner invo- 
lucral scales broadest near the base. 
* Leaves ovate-oblong, crenate or repand, 
brown-tomentose beneath; involucre 
densely pubescent; inner scales merely 
Vernonia desiliens. 
i 
acute. Vernonia calida. 
** Leaves broadly ovate or oval, entire or 
somew 
pubescent or glabrate; inner scales 
sharply acuminate. Vernonia semitalis. 
VERNONIA FRUTICOSA (L.) Sw. FI. Ind. Occ. 3: 1323. 1806. 
Stem very slender, freely and loosely branched, glabrous or 
puberulént in the inflorescence; leaves firm, ovate-oblong, 1-2 cm 
