Discocactus diersianus subsp. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995
Discocactus diersianus subsp. goianus in Kakteen And. Sukk. 46: 64. 1995
is new combination for Discocactus goianus in Kakteen And. Sukk. 31: 79. 1980