Studies in Spongipellis sensu stricto (Polyporales, Basidiomycota)

Taxonomy of Spongipellis sensu stricto is revised based on morphological studies and DNA data. Here, the genus accepted as a member Meripilaceae, it contains five species. Of them, S. spumea, generic type, occurs in Europe, two species, ambiens (= Tyromyces sibiricus) variispora sp. nov., are found East Asia, profissilis comb. reported from Central Siberia Far Asia. The North-American occidentalis, reinstated separate species redescribed here historical material.