The genus Maytenus was established in 1782 by Molina and Gymnosporia in 1834 by Wight & Arn. There are 325 species of both have been recorded in the whole world (Airy-Shaw, 1973) and 8 species from China (One is Maytenus, seven are Gymnosporia).

• 美登木属由Molina于1782年建立,裸实属由Wight和Arn于1834年建立,两属在全世界共记载约325种(Airy-Shaw1973年),国产计8种(美登木1种,裸实7种),近年来不少新种已在国内被发现,至今已确定的计23种、1变种。