Mediocactus wercklei (F.A.C.Weber) Doweld in Sukkulenty 4(1-2): 42. 2002 ["2001"] Mediocactus wercklei (F.A.C.Weber) Doweld in Sukkulenty 4(1-2): 42. 2002 ["2001"]is new combination for Cereus wercklei F.A.C.Weber in Bull. Mus. Hist. Nat. (Paris) 8: 460. 1902Taxon for this nameMediocactus wercklei (F.A.C.Weber) Doweld