Gymnocalycium monvillei
Gymnocalycium cardenasianum
Gymnocalycium cardenasianum
Gymnocalycium cardenasianum
Gymnocalycium michanovichii
Gymnocalycium michanovichii
Gymnocalycium guanchinense = Gymnocalycium hossei
Gymnocalycium guanchinense = Gymnocalycium hossei
Gymnocalycium guanchinense = Gymnocalycium hossei
Gymnocalycium spegazzinii
Gymnocalycium spegazzinii
Gymnocalycium spegazzinii