⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50143176, with some changes.
This name is a synonym of Mammillaria voburnensis subsp. collinsii .
The record derives from Tropicos which reports it as a synonym (record 50143176
) with original publication details: Cactaceae 4: 101, f. 101, 103 101 1923.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:168685-2
.