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A taxonomic revision of the genus Pteris in tropical Africa revealed 26 species. An identification key to the species is provided. Morphological characters were used to prepare a cladistic analysis of the relevant taxa. Each species was evaluated concerning the IUCN red list status. Only Pteris mkomaziensis was considered as Near Threatened, and all other species only as Least Concern. An inventory of the ferns of Kakamega Forest / Kenya and Budongo Forest / Uganda revealed 85 species in Kakamega and 66 species in Budongo. Life form spectra were analysed and the ferns were studied for their value for bioindication.
