Corryocactus maximus (Backeb.) Hutchison in Sukkulentenkunde 7-8: 9. 1963 Corryocactus maximus (Backeb.) Hutchison in Sukkulentenkunde 7-8: 9. 1963is new combination for Erdisia maxima Backeb., Stachlige Wildnis: 263. 1942Taxon for this name? Corryocactus maximus (Backeb.) Hutchison