Opuntia pseudoudonis (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958 Opuntia pseudoudonis (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958is new combination for Tephrocactus pseudoudonis Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"]Taxon for this nameOpuntia pseudoudonis (Rauh & Backeb.) G.D.Rowley