Parodia maassii f. castanea (F.Ritter) Krainz Parodia maassii f. castanea (F.Ritter) Krainzis new combination for Parodia camargensis var. castanea F.Ritter in Succulenta (Netherlands) 1962: 21. 1962Taxon for this nameParodia maassii f. castanea (F.Ritter) Krainz