Remarks | later homonym (non F. E. L. Fischer et C. A. Meyer 1843); Lectotype: M. corynodes (Pfeiffer) Salm-Reifferscheid-Dyck (Echinocactus corynodes Pfeiffer) (vide N. L. Britton et Rose, Cactaceae 3: 187. 1922); nom. syn. of Wigginsia D. M. Porter (1964) |