Chengiodendron

Chengiodendron is a genus of flowering plants in the olive family, Oleaceae. It includes three species native to Indochina, southern China including Taiwan and Hainan, the Ryukyu Islands, and Assam.
 * Chengiodendron marginatum (Champ. ex Benth.) C.B.Shang, X.R.Wang, Yi F.Duan & Yong F.Li
 * Chengiodendron matsumuranum (Hayata) C.B.Shang, X.R.Wang, Yi F.Duan & Yong F.Li
 * Chengiodendron minor (P.S.Green) C.B.Shang, X.R.Wang, Yi F.Duan & Yong F.Li

These species were previously included in the Leiolea clade of genus Osmanthus as Osmanthus marginatus, O. matsumuranus, and O. minor. A phylogenetic study revealed that they were paraphyletic to the rest of the genus, and they were placed in the new genus Chengiodendron.