Mammilloydia candida subsp. ortiz-rubiana (Bravo) Buxb. in Krainz, Kakteen 55-56: CIVf. 1973 Mammilloydia candida subsp. ortiz-rubiana (Bravo) Buxb. in Krainz, Kakteen 55-56: CIVf. 1973Taxon for this nameMammilloydia candida subsp. ortiz-rubiana (Bravo) Buxb.