Copiapoa marginata var. bridgesii (Pfeiff.) A.E.Hoffm., Cact. Fl. Silvestre Chile: 124. 1989 Copiapoa marginata var. bridgesii (Pfeiff.) A.E.Hoffm., Cact. Fl. Silvestre Chile: 124. 1989is new combination for Echinocactus bridgesii Pfeiff., Abbild. Beschr. Cact. 2: t. 14. 1846Taxon for this nameCopiapoa marginata var. bridgesii (Pfeiff.) A.E.Hoffm.