Melocactus oreas var. longispinus (Buining et al.) P.J.Braun variety synonym

Melocactus oreas f. erythracanthus (Buining & Brederoo) P.J.Braun form synonym

Melocactus oreas subsp. ernestii (Vaupel) P.J.Braun subspecies synonym

Melocactus oreas f. azulensis (Buining & Brederoo) P.J.Braun form synonym

Melocactus nitidus F.Ritter species synonym

Melocactus neomontanus Van Heek & Hovens species synonym

Melocactus mulequensis Buining & Brederoo species synonym

Melocactus montanus F.Ritter species synonym

Melocactus longispinus Buining & Brederoo species synonym

Melocactus longicarpus Buining & Brederoo species synonym

Melocactus interpositus F.Ritter species synonym

Melocactus florschutzianus Buining & Brederoo species synonym

Melocactus florschuetzianus Buining & Brederoo species synonym

Melocactus erythracanthus Buining & Brederoo species synonym

Melocactus ernestii subsp. longicarpus (Buining & Brederoo) N.P.Taylor subspecies accepted

Melocactus deinacanthus f. mulequensis (Buining & Brederoo) P.J.Braun form synonym

Melocactus deinacanthus subsp. longicarpus (Buining & Brederoo) P.J.Braun subspecies synonym

Melocactus deinacanthus subsp. florschuetzianus (Buining & Brederoo) P.J.Braun subspecies synonym

Melocactus azulensis Buining & Brederoo species synonym

Melocactus ernestii subsp. ernestii subspecies accepted