CENTELLA, in botany: A genus of the tetrandria order, belonging to the monœcia class of plants; and in the natural method ranking under the 11th order, Sarmentaceæ. The male involucrem is tetraphyllous and quinqueflorus, with four petals; the female

Centenari- involucrem is diphyllous and uniflorous; the petals four; the germin inferior; two styles; and a bilocular feed-case.