Melocactus estevesii P.J.Braun in Kakteen And. Sukk. 41(1): 9. 1989 ["1990"] Melocactus estevesii P.J.Braun in Kakteen And. Sukk. 41(1): 9. 1989 ["1990"]Taxon for this nameMelocactus estevesii P.J.Braun in Kakteen And. Sukk. 41(1): 9. 1989 ["1990"]