Mammillaria albicans (Britton & Rose) A. Berger Mammillaria albicans (Britton & Rose) A. Berger, Kakteen (Berger): 308. 1929 sec. Guzmán & al. 2003≡Neomammillaria albicans Britton & Rose, Cactaceae (Britton & Rose) 4: 138. 1923 syn. sec. Guzmán & al. 2003