Pellaea calomelanos var. calomelanos
Saw this plant in the veld on a walk. Photo 1 is the back side of a leaf, 2nd the front side and the 3rd is the plant itself which was about 300mm high.
It is found in eastern and southern Africa (Angola, Botswana, Democratic Republic of the Congo, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Somalia, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe) where it is associated with Afromontane vegetation, as well as on Madagascar, The Comoros, and the Mascarene Islands. Disjunct populations are found in northern India, Spain (Catalonia), and the Azores.