Mammillaria nunezii var. solisii (Britton & Rose) Backeb., Cactaceae 5: 3374. 1961 Mammillaria nunezii var. solisii (Britton & Rose) Backeb., Cactaceae 5: 3374. 1961is new combination for Neomammillaria solisii Britton & Rose, Cactaceae 4: 142, f. 156–157. 1923Taxon for this nameMammillaria nunezii var. solisii (Britton & Rose) Backeb.