Rathbunia laevigata var. schumannii (Mathsson ex K.Schum.) P.V.Heath in Calyx 2: 104. 1992 Rathbunia laevigata var. schumannii (Mathsson ex K.Schum.) P.V.Heath in Calyx 2: 104. 1992is new combination for Cereus schumannii Mathsson ex K.Schum. in Monatsschr. Kakteenk. 9: 131. 1899Taxon for this nameRathbunia laevigata var. schumannii (Mathsson ex K.Schum.) P.V.Heath