⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-5107819, and has not been changed.
This name is a synonym of Melocactus bahiensis subsp. amethystinus .
The record derives from Tropicos which reports it as a synonym (record 5107819
) with original publication details: Succulenta (Netherlands) 53: 68 68 1974.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:156836-2
.