Abstract: In preparation of the Vitaceae treatment for Flora of China, we discovered that Cayratia mollissima var. lanceolata C. L. Li from China’s Hainan is highly distinct from C. mollissima (Wall. ) Gagnep. from the Malay Peninsula and Indochina in fruit and leaf morphology. The taxon from Hainan deserves recognition at the species level and thus a new combination, Cayratia lanceolata (C. L. Li ) J. Wen & Z. -D. Chen, is herein made.

Key words: Vitaceae