Gymnocalycium nigriareolatum Backeb. in Blätt. Kakteenf. 1934(5): 8, genus 74, sp. 1. 1934
Gymnocalycium nigriareolatum in Blätt. Kakteenf. 1934(5): 8, genus 74, sp. 1. 1934
Taxon for this nameGymnocalycium nigriareolatum in Blätt. Kakteenf. 1934(5): 8, genus 74, sp. 1. 1934