Epithelantha micromeris subsp. polycephala (Backeb.) Glass, Guía Identific. Cact. Amenazadas México: s.p. 1997 ["1998&quo
Epithelantha micromeris subsp. polycephala, Guía Identific. Cact. Amenazadas México: s.p. 1997 ["1998"]
is new combination for Epithelantha polycephala in Cactus (Paris) 39: 32. 1954