Echinofossulocactus ignotus-venosus Placement status: name of verified uncertain applicationEchinofossulocactus ignotus-venosus Lawr. in Gard. Mag. (London) 17: 318. 1841 sec. Britton & Rose 192211. Britton, N. L. & Rose, J.N. 1922: Cactaceae 3Content