Novitates Gabonenses 78. Deux espèces nouvelles du Gabon dans les Bridelieae (Phyllanthaceae, autrefois Euphorbiaceae) avec clés des espèces gabonaises des genres Bridelia et Cleistanthus

In the framework of the taxonomic treatment of the Phyllanthaceae for the Flore du Gabon, two new species of Bridelieae are described, one in the genus Bridelia, the other in the genus Cleistanthus. The new species are illustrated, their distribution maps are provided, and their taxonomic position within their respective genera is discussed. An assessment of their conservation status is provided. Identification keys for the Gabonese species of Bridelia and Cleistanthus are added.