Gymnocalycium glaucum subsp. ferrarii (Rausch) G.J.Charles in Cactaceae Syst. Init. 20: 18. 2005
Gymnocalycium glaucum subsp. ferrarii in Cactaceae Syst. Init. 20: 18. 2005
is new combination for Gymnocalycium ferrarii in Kakteen And. Sukk. 32: 7, figs. 1981
Gymnocalycium glaucum subsp. ferrarii in Cactaceae Syst. Init. 20: 18. 2005