Soehrensia quadratiumbonata
Soehrensia quadratiumbonata in Cactaceae Syst. Init. 28: 31. 2012 sec. Schlumpberger 20121
- ≡Trichocereus quadratiumbonatus, Kakteen Südamerika 2: 566, fig. 1980 syn. sec. Schlumpberger 20121
- ≡Echinopsis quadratiumbonata in Cactaceae Consensus Init. 4: 5. 1997 syn. sec. ???
- Holotype: Bolivia, dept. Santa Cruz, prov. Cordillera, c. 12 km W of Boyuibe, alt. c. 1000 m, 1963, F. Ritter 1156 (U)