Gymnocalycium mazanense SE21, Willa Mazan
Gymnocalycium mazanense var. polycephalum VS46, Culpan, La Rioja
Gymnocalycium megalothelos
Gymnocalycium megatae
Gymnocalycium mesopotamicum P241, Corrientes, 200m
Gymnocalycium mihanovichii var. filadelfiense
Lista
GYM-17
GYM-19