Thelocactus tulensis subsp. vaskoanus (Halda, Hovorka & Zatloukal) Halda, Kupcák & Malina in Acta Mus. Richnov., Sect.
Thelocactus tulensis subsp. vaskoanus in Acta Mus. Richnov., Sect. Nat., 9: 45. 2002
is new combination for Thelocactus vaskoanus in Acta Mus. Richnov., Sect. Nat., 7: 75. 2000