Rebutia marsoneri f. sieperdaiana (Buining) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963
Rebutia marsoneri f. sieperdaiana in Sukkulentenkunde 7-8: 103. 1963
is new combination for Rebutia sieperdaiana in Succulenta (Netherlands) 23: 15. 1941