Parodia slabana Halda & Horáček in Cactaceae etc. 10(3): 76–80. 2000 Parodia slabana Halda & Horáček in Cactaceae etc. 10(3): 76–80. 2000is basionym for Parodia subterranea var. slabana (Halda & Horáček) Romulski in Kaktusy Inne 3: 77. 2006Taxon for this nameParodia slabana Halda & Horáček