Vincetoxicum sui (Y.H. Tseng & C.T. Chao) T.C. Hsu, comb. nov.

≡ Tylophora sui Tseng & Chao in Tseng et al. (2011: 162).

Type:— TAIWAN. Pingtung County: Hengchun Town, Longpan, 25 May 2009, Y.H. Tseng 4668 (holotype, TCF!) .

Note:— This endemic species was omitted in the previous nomenclatural work (Liede-Schumann & Meve 2018).