A Project of the World Flora Online Consortium
in the genus
On trees and rocks in shade; up to 7, 600 ft. alt.
Forest species usually occurring in masses on boulders in deep shade, but occasionally found as a low-level epiphyte, between 25 and 1700 m.
Transkei, Natal, Zimbabwe, Mozambique, Malawi, Zambia, Angola, Zaire, Tanzania, Uganda, Kenya, Sudan, Cameroun, Nigeria, Togo, Ghana, Ivory Coast, Liberia, Sierra Leone, São Tomé, Fernando Po, Comoro Islands and Madagascar.