Loxanthocereus madisoniorum (Hutchison) Buxb. Loxanthocereus madisoniorum (Hutchison) Buxb.is new combination for Borzicactus madisoniorum Hutchison in Cact. Succ. J. (Los Angeles) 35: 167. 1963Taxon for this nameLoxanthocereus madisoniorum (Hutchison) Buxb.