Aylostera pulvinosa (F.Ritter & Buining) Backeb., Descr. Cact. Nov. 3: 5. 1963 Aylostera pulvinosa (F.Ritter & Buining) Backeb., Descr. Cact. Nov. 3: 5. 1963is new combination for Rebutia pulvinosa F.Ritter & Buining in Taxon 12: 29. 1963Taxon for this nameAylostera pulvinosa (F.Ritter & Buining) Backeb.