Rebutia pygmaea f. fuauxiana (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963 Rebutia pygmaea f. fuauxiana (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963is new combination for Mediolobivia fuauxiana Backeb., Descr. Cact. Nov. 1: 31. 1957 ["1956"]Taxon for this nameRebutia pygmaea f. fuauxiana (Backeb.) Buining & Donald