A genus of perhaps 50 species, mostly natives of central and southern Brazil.
Only the following are known from northern South America. The group was maintained
by Berg (cf Linnaea 2 7 : 347-349. 1856) as one of the genera of the Pimentinae
having the embryo spirally coiled (as distinct from those genera having the
embryo merely uncinate or C-shaped), the locules of the ovary several (4-11), and
the calyx-lobes usually 5, broad and membranaceous, and the testa of the seed membranaceous
and verruculose-glandular. Superficially our species m a y be distinguished
from species of Psidium by the broad thin calyx-lobes not further separated by
splitting between the bases; by the thin leaves with strongly ascending lateral veins
and hardly any noticeable marginal veins; and by the tendency to produce solitary
flowers at leafless nodes rather than in the axils of mature leaves.