Climacodon pulcherrimus a badly known tropical species, present in Europe

Climacodon pulcherrimus, a polymorphous species with a large distribution and habitat, is described macro- and microscopically. Its uncertain taxonomic position has led to the description of many synonymous species and placement in different genera. The type species of Hydnum pulcherrimum Berk. & M.A. Curtis is examined for the first time and it is compared with other collections from Malay Peninsula, Pakistan, USA and Spain. The study of Spanish collections enlarges the distribution to the South of Europe.