SYMPLOCOS, in botany: A genus of plants belonging to the class of polyadelphia, and to the order of polyandria; and in the natural system ranging under those of the order of which has not been determined. The calyx is quinquefid and inferior: the corolla is pentapetalous: the stamens are attached to the tube of the corolla in a fourfold series. Only one species, the martinicensis, is mentioned by LINNAEUS; but P'HERITIER of the Academy of Sciences at Paris had added four more, the eiponima, arechea, tinctoria, and altonia.