⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-5101144, with some changes.

Mammillaria gummifera var. hemisphaerica (Engelm.) L.D. Benson is a synonym of Mammillaria heyderi subsp. hemisphaerica (Engelm.) D.R. Hunt

This name is a synonym of Mammillaria heyderi subsp. hemisphaerica (Engelm.) D.R. Hunt.

The record derives from Tropicos which reports it as a synonym (record 5101144) with original publication details: Cact. Succ. J. (Los Angeles) 41(3): 128 128 1969.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:151062-2.