Echinofossulocactus corniger var. angustispinus (Lawr.) Lawr. in Gard. Mag. (London) 17: 318. 1841 Echinofossulocactus corniger var. angustispinus (Lawr.) Lawr. in Gard. Mag. (London) 17: 318. 1841Taxon for this nameEchinofossulocactus corniger var. angustispinus (Lawr.) Lawr.