BRITTON: STUDIES OF WEsT INDIAN PLANTS 31 
leaves acute at both ends, bipartite, persistent, obtuse stipules; 
corymbose peduncled flowers, the calyx truncate, with five short 
teeth. The genus of this plant was questioned by A. Richard 
(in Sagra, Hist. Cub. 11: 13), and I do not know any species which 
answers to the description. 
Rondeletia americana L. Sp. Pl. 172. 1753 
This, the type of the genus, is also recorded by De Candolle 
as found at Havana by Ossa, and Grisebach (FI. Br. W. I. 327) 
mentions it as Cuban. I know the plant only from St. Vincent 
and Jamaica. 
Rondeletia laevigata Ait. Hort. Kew. ed. 2, 1: 366. 1810 
De Candolle mentions this also as found at Havana, but no 
species answering to the description is known to me from Cuba; 
Grisebach (Fl. Br. W. I. 328) indicates that it is from the island 
of Trinidad. 
Rondeletia leptacantha DC. Prodr. 4: 410. 1830 
Collected by Ossa, near Havana, according to De Candolle. 
Described as a plant with opposite spines, broadly oval, subacute 
leaves, the twigs and leaves subpilose when young, the slender 
peduncle as long asthe leaves or longer, three- to five-flowered at the 
apex. NI I . Pr yg Pan es if ay 
_ Grisebach (Cat. Pl. Cub. 133) refers the plant to Chomelia fascicu- 
lata Sw. [Anisomeris fasciculata (Sw.) Schum.], but this disposal 
of it is not satisfactory. 
57- THREE ERIOCAULONS FROM THE ISLE OF PINES 
Eriocaulon arenicola Britton & Small, sp. nov. 
Plants 4-26 cm. tall, the scapes solitary or usually several 
together; leaves ascending or spreading, 1-8 cm. long, linear- 
attenuate, convex beneath, slightly concave above, glabrous; 
scapes slender, mostly 6-angled, slightly spirally twisted, each 
subtended by an obliquely opened sheath which is shorter than 
the leaves; heads dense, at first depressed-globose, later sub- 
globose or ovoid-globose, becoming about 5 mm. in diameter, 
pubescent, whitish-gray; bracts of the involucre cuneate to obo- 
vate, the outer ones about 1.5 mm. long; flowers numerous, 
