Neoporteria bulbocalyx (Werderm.) Donald & G.D.Rowley in Cact. Succ. J. Gr. Brit. 28: 55. 1966 Neoporteria bulbocalyx (Werderm.) Donald & G.D.Rowley in Cact. Succ. J. Gr. Brit. 28: 55. 1966is new combination for Echinocactus bulbocalyx Werderm., Blüh. Kakt. Mappe 34: t. 136. 1937Taxon for this nameNeoporteria bulbocalyx (Werderm.) Donald & G.D.Rowley