In this new series of Fungal Biodiversity Profiles, the authors describe three new Laboulbeniales (Ascomycota) based on morphology, viz. Corethromyces gibbosus W. Rossi & Santam., sp. nov., C. marshallii W. Rossi & Santam., sp. nov. and Diphymyces torresii W. Rossi & Santam., sp. nov. In Agaricomycotina (Basidiomycota), morphological features and multigene phylogenetic analyses support the description of Cantharellus albidosquamosus Buyck, T. W. Henkel & V. Hofst., sp. nov. (Cantharellales), while morphology and analyses of ITS sequence data support the description of Gomphidius pseudoglutinosus K. Das, Hembrom, A. Parihar & Vizzini, sp. nov. (Boletales) and of two Gomphales, Hymenochaete boddingii Hembrom, A. Parihar, K. Das & A. Ghosh, sp. nov. and Ramaria thindii K. Das, Hembrom, A. Parihar & A. Ghosh, sp. nov. In Russulales, recently published multigene phylogenetic analyses support the description of Russula antsikana Buyck & Randrianjohany, sp. nov. from Madagascar, and a barcode ITS sequence is newly provided for the holotype. In addition, a detailed description is given for the type of the West-African Russula liberiensis Sing., likely its closest relative. Still in genus Russula, a new multigene analysis supports the description of subsect. Castanopsidum Buyck & X.H. Wang, subsect. nov. for a species assemblage in the Russula crown clade that seems to have its main distribution in Asia.