⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50004787, with some changes.

Mammillaria collina J.A. Purpus is a synonym of Mammillaria haageana subsp. elegans D.R. Hunt

This name is a synonym of Mammillaria haageana subsp. elegans D.R. Hunt.

The record derives from Tropicos which reports it as a synonym (record 50004787) with original publication details: Monatsschr. Kakteenk. 22: 162 162 1912.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:150795-2.