Turbinicarpus schmiedickeanus var. kupcakii (Halda & Horáček) Halda & Horáček in Acta Mus. Richnov., Sect. Nat., 9:
Turbinicarpus schmiedickeanus var. kupcakii in Acta Mus. Richnov., Sect. Nat., 9: 78. 2002
is new combination for Turbinicarpus macrochele subsp. kupcakii in Acta Mus. Richnov., Sect. Nat., 7: 76. 2000