Notocactus eugeniae Vliet in Succulenta (Netherlands) 55(2): 24. 1976
Notocactus eugeniae in Succulenta (Netherlands) 55(2): 24. 1976
is basionym for Parodia mammulosa subsp. eugeniae in Cactaceae Consensus Init. 6: 11. 1998
is basionym for Ritterocactus mammulosus subsp. eugeniae in Sukkulenty 2(2): 22. 1999
is basionym for Notocactus mueller-melchersii var. eugeniae in Internoto 25: 112. 2004
is basionym for Notocactus mammulosus subsp. eugeniae in Cact.-Avent. Int. 98(Suppl.): 7. 2013