Neomammillaria polycentra var. pretiosa (Schelle) Y.Itô, Cactaceae: 599. 1981
Neomammillaria polycentra var. pretiosa, Cactaceae: 599. 1981
is new combination for Mammillaria pretiosa in Allg. Gartenzeitung 17: 250. 1849
Neomammillaria polycentra var. pretiosa, Cactaceae: 599. 1981
Taxon for this name