Favolaschia roldana (Agaricales: Mycenaceae), a new species from Mexico

Favolaschia roldana is described and illustrated as a new species. It was collected in the south of Distrito Federal, in Abies religiosa with Quercus and Pinus forest and Quercus-Pinus forest. It is characterized by the presence of larger basidia than those found in other species, acanthocysts in all hymenial surface and by growing on dry branches of Roldana angulifolia.