Raphiocarpus taygiangensis C.H.Nguyen, K.S.Nguyen & Aver., sp. nov. A natural habitat B–D flowering plant in natural habitat E leaves F leaf margin G inflorescences H flowers, views from different sides I flower, frontal views J sagittal section of corolla showing inner surface with stamens and staminodes K flower tube inside and outside L, M stamens N staminode O calyx lobes P pistil, base of pistil and its apex with stigma Q young fruit. Photos by Cuong Huu Nguyen and Khang Sinh Nguyen, correction and design by Cuong Huu Nguyen.