⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50186349, and has not been changed.

Mammillaria fragilis Salm-Dyck is a synonym of Mammillaria gracilis Pfeiff.

This name is a synonym of Mammillaria gracilis Pfeiff..

The record derives from Tropicos which reports it as a synonym (record 50186349) with original publication details: Cact. Hort. Dyck. [ed. 1849] 1849: 103 103 1850.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:150978-2.