A new species of Cyathus (Nidulariaceae, Basidiomycota) from Kalimantan, Borneo

In this study, we present the first new species of Cyathus from Indonesia. Cyathus magnipilosus is characterized by having light-colored basidiomata, an exoperidium with long tomentum, single-layered cortex, black peridioles with a smooth surface and elongated basidiospores. The new species is presented with morphological illustrated description, and phylogenetic analyses using ITS and LSU sequences. Cyathus magnipilosus fits in the pallidum group, based on recent classifications. Comparative analyses with related taxa and a detailed discussion are provided as well as an identification key to the known species of Cyathus in the pallidum group for the world.