Mammillaria phitauiana (E.M. Baxter) Werderm., Neue Kakteen: 96. 1931 sec. Hunt 2016
- ≡Neomammillaria phitauiana E.M. Baxter in Cact. Succ. J. (Los Angeles) 2: 471. 1931 syn. sec. Guzmán & al. 2003
- =Mammillaria verhaertiana Boed. in Monatsschr. Kakteenk. 22: 152. 1912 syn. sec. Guzmán & al. 2003
- =Chilita verhaertiana (Boed.) Orcutt, Cactography 2. 1926 syn. sec. Guzmán & al. 2003
- =Mammillaria dioica f. phitauiana (E.M. Baxter) Neutel. in Succulenta (Netherlands) 65: 119. 1986 syn. sec. Guzmán & al. 2003
- =Mammillaria dioica f. verhaertiana (Boed.) Neutel. in Succulenta (Netherlands) 65: 119. 1986 syn. sec. Guzmán & al. 2003
- =Cochemiea phitauiana (E.M. Baxter) Doweld in Sukkulenty 3: 38. 2000 syn. sec. Guzmán & al. 2003