Aylostera tuberosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 5. 1963 Aylostera tuberosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 5. 1963is new combination for Rebutia tuberosa F.Ritter in Taxon 12: 28. 1963Taxon for this nameAylostera tuberosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 5. 1963