Melocactus amoenus Hoffmanns. ex Pfeiff., Enum. Diagn. Cact.: 43. 1837 Melocactus amoenus Hoffmanns. ex Pfeiff., Enum. Diagn. Cact.: 43. 1837Taxon for this nameMelocactus amoenus Hoffmanns. ex Pfeiff.
