Gymnocalycium schroederianum subsp. bayense R.Kiesling in Cact. Succ. J. (Los Angeles) 59: 48. 1987 Gymnocalycium schroederianum subsp. bayense R.Kiesling in Cact. Succ. J. (Los Angeles) 59: 48. 1987Taxon for this nameGymnocalycium schroederianum subsp. bayense R.Kiesling
