Maierocactus capricornis (A.Dietr.) E.C.Rost in Z. Sukkulentenk. 2(8): 142. 1925 Maierocactus capricornis (A.Dietr.) E.C.Rost in Z. Sukkulentenk. 2(8): 142. 1925is new combination for Echinocactus capricornis A.Dietr. in Allg. Gartenzeitung 19: 274. 1851This name is not assigned to any taxon.