Submatucana madisoniorum (Hutchison) Backeb., Kakteenlex.: 412. 1966 Submatucana madisoniorum (Hutchison) Backeb., Kakteenlex.: 412. 1966is new combination for Borzicactus madisoniorum Hutchison in Cact. Succ. J. (Los Angeles) 35: 167. 1963Taxon for this nameSubmatucana madisoniorum (Hutchison) Backeb.