Le genre Russula au Burkina Faso (Afrique de l'Ouest) : quelques espèces nouvelles de couleur brunâtre

In this first study on Russula in Burkina Faso, which represents the first taxonomic study of this genus for the whole of West-Africa, the authors discuss, in alphabetical order, five brownish russulas, four of which represent new species: Russula fissurata sp.nov. in subsect. Brunneodermatinae, R. oculata sp. nov. in subsect. Mamillatinae, R. sankarae sp. nov. in subsect. Aureotactinae, R. turpis sp. nov. in subsect. Aurantiomarginatinae, whereas R. oleifera is here accepted as type species of Oleiferinae subsect. nov. in sect. Ingratae.