Mammillaria nunezii (Britton & Rose) Orcutt Mammillaria nunezii (Britton & Rose) Orcutt, Cactography 8. 1926 sec. Guzmán & al. 2003≡Neomammillaria nunezii Britton & Rose, Cactaceae (Britton & Rose) 4: 120. 1923 syn. sec. Guzmán & al. 2003