Zygocactus obtusangulus (K.Schum.) Loefgr. in Arch. Jard. Bot. Rio de Janeiro 2: 28. 1918 Zygocactus obtusangulus (K.Schum.) Loefgr. in Arch. Jard. Bot. Rio de Janeiro 2: 28. 1918is new combination for Cereus obtusangulus K.Schum., Fl. Bras. 4(2): 198. 1890Taxon for this nameZygocactus obtusangulus (K.Schum.) Loefgr.