⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-5106194, with some changes.
This name is a synonym of Mammillaria thornberi subsp. thornberi .
The record derives from Tropicos which reports it as a synonym (record 5106194
) with original publication details: Smithsonian Misc. Collect. 258: 402 402 1878.