On the Identity of Kudingcha in Chinese Holly (Ilex L.)

An examination of the syntypes, Q. B. Huang 42(IBK) and H. Y. Liang 60355 (IBK, PE, IBSC), cited by C. J. Tseng under his Ilex kudingcha C. J. Tseng, showed that it perfectly agreed with the type specimen(W. T. Tseng 864, US) of I. kaushue S. Y. Hu. So I. kudingcha C. J. Tseng should be treated as the synonym of I. kaushue S. Y. Hu, and the correct name of this important beverage plant(Kudingcha) in China should be I. kaushue S. Y. Hu. Moreover, a new species used as kudingcha, I. pentagona, is described. A key to these two beverage plants and their relatives is offered.