Gymnocalycium Pfeiff. ex Mittler (Cactaceae)

Gymnocalycium bruchii Botan, Stockholm 020514 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gymnocalycium michoga Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gymnocalycium pflanzii 1 Desert Botanical Garden, Phoenix, Arizona 130426 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).


Gymnocalycium pflanzii 2 Desert Botanical Garden, Phoenix, Arizona 130426 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).