G. Anthony Pauca-Tanco is a biologist, graduated from the Universidad Nacional de San Agustín, and is Master in MASIG. Current professor at the San Pablo Catholic University. Member and researcher at the Institute of Science and Environmental Management of the National University of San Agustin de Arequipa, the Michael Owen Dillon Scientific Institute, Herbario Sur Peruano (HSP) and a member of the International Organization for Succulent Plant Study (IOS). Interests: plant taxonomy, biogeography and ecology.