×Differa ×Differa M.H.J.van der Meer in Cact. Phantast. 2018(1): 2. 2018 sec. van der Meer 20181 wfo-00013029261. van der Meer, M.H.J. 2018: 16 new nothogenera and 15 new combinations in Hylocereeae (Cactaceae). – Cactologia Phantastica 1 (2018): 1-16.=×Eversonara P.V.Heath in Calyx 1: 120. 1992 syn. sec. van der Meer 20182 wfo-40000425192. van der Meer, M.H.J. 2018: 16 new nothogenera and 15 new combinations in Hylocereeae (Cactaceae). – Cactologia Phantastica 1 (2018): 1-16.ContentNotes Notes Disocactus Lindl. ×Pfeiffera Salm-Dyck