Echinofossulocactus spiralis (Karw. ex Pfeiff.) Lawr. in Gard. Mag. (London) 17: 318. 1841 Echinofossulocactus spiralis (Karw. ex Pfeiff.) Lawr. in Gard. Mag. (London) 17: 318. 1841is new combination for Echinocactus spiralis Karw. ex Pfeiff., Enum. Diagn. Cact.: 60–61. 1837Taxon for this nameEchinofossulocactus spiralis (Karw. ex Pfeiff.) Lawr.