Echinopsis brevispina (F.Ritter) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 94. 1974 Echinopsis brevispina (F.Ritter) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 94. 1974is new combination for Acanthocalycium brevispinum F.Ritter in Taxon 13(4): 144. 1964Taxon for this nameEchinopsis brevispina (F.Ritter) H.Friedrich & G.D.Rowley