⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-5100363, with some changes.

Mammillaria heyderi var. hemisphaerica Engelm. 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 5100363) with original publication details: Proc. Amer. Acad. Arts 3: 263 263 1856.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:151106-2.