⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50181101, and has not been changed.

Mammillaria viperina J.A. Purpus is a synonym of Mammillaria sphacelata subsp. viperina (J.A. Purpus) D.R. Hunt

This name is a synonym of Mammillaria sphacelata subsp. viperina (J.A. Purpus) D.R. Hunt.

The record derives from Tropicos which reports it as a synonym (record 50181101) with original publication details: Monatsschr. Kakteenk. 22: 148 148 1912.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:151842-2.