The genus Tarennoidea Tirveng. & Sastre composing of a species, T. Wallichii (Hook.f.) Tirveng. & Sastre from Thailand is presented. The descriptions, distribution data and map, specimens examined and also photographs of the species are provided. Lectotypes offour taxa, Randia wallichii Hook.f. var. subtruncata Craib, Tarenna incerta Koord. & Valeton, Webera henryi H. Lév. and W. pallida Franch. ex Brandis are designated.