⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-5108432, and has not been changed.

Mammillaria dawsonii (Houghton) R.T. Craig bis is a synonym of Mammillaria brandegeei subsp. glareosa (Boed.) D.R. Hunt

This name is a synonym of Mammillaria brandegeei subsp. glareosa (Boed.) D.R. Hunt.

The record derives from Tropicos which reports it as a synonym (record 5108432) with original publication details: Mammillaria Handb. 67 67 1945.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:150842-2.