⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50186200, and has not been changed.
This name is a synonym of Mammillaria chionocephala .
The record derives from Tropicos which reports it as a synonym (record 50186200
) with original publication details: Cactaceae 4: 101, f. 99 101 1923.