⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-5100365, and has not been changed.
This name is a synonym of Mammillaria heyderi subsp. meiacantha .
The record derives from Tropicos which reports it as a synonym (record 5100365
) with original publication details: Cact. Succ. J. (Los Angeles) 47: 40 40 1975.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:151108-2
.