Mammillaria discolor subsp. schmollii (Bravo) Linzen in Mitteilungsbl. Arbeitskreises Mammillarienfr. 24: 209. 2000 sec. Guzmán & al. 2003
- ≡Neomammillaria schmollii Bravo in Anales Inst. Biol. Univ. Nac. México 2: 123. 1931 syn. sec. Guzmán & al. 2003
- =Mammillaria schmollii (Bravo) Werderm., Neue Kakteen: 98. 1931 syn. sec. Guzmán & al. 2003
- =Mammillaria discolor var. schmollii (Bravo) Repp., Gatt. Mammillaria: 78. 1987 syn. sec. Guzmán & al. 2003