Hydrocotyle brittonii Mathias

Hydrocotyle brittonii Mathias, Brittonia 2: 239. 1936
Stems glabrous, filiform; leaves thin, peltate, orbicular, 4-1 1 mm. in diameter, 6-7-nerved, shallowly 6-7-crenately lobed, the crenations 1-3-crenulate, the crenulations truncate to subtruncate, glabrous to sparsely setulose above, glabrous beneath; petioles filiform, glabrous, 3-14 mm. long; inflorescence a simple umbel; peduncles longer than the leaves, 3-16 rnm. long, filiform, glabrous; involucre of conspicuous ovate-lanceolate, scarious bracts; umbels 1or 2-flowered, the flowers subsessile; fruit ellipsoid in general outline, about 1 mm. long, 1.5 mm. broad, glabrous, the dorsal surface rounded, the ribs obsolete, the commissural surface rounded, narrowly oblong in cross section; oil-bearing cells present; seed ovate in cross section.
Type locality: Banks. Morel's Gap, vicinity of Cinchona, Jamaica, BrMon 177. Distribution: Known only from the type locality.