Echinofossulocactus helophorus (Lem.) Lawr. in Gard. Mag. (London) 17: 318. 1841 Echinofossulocactus helophorus (Lem.) Lawr. in Gard. Mag. (London) 17: 318. 1841Taxon for this nameEchinofossulocactus helophorus (Lem.) Lawr.