New taxa of Hawaiian corticioid fungi are described with keys to Crustoderma, Radulomyces, and Scopuloides

Four new species of corticioid fungi from Hawaii are described and illustrated. The new genus Hemmesomyces is described to accommodate We new species H. puauluensis. Radulomyces tantalusensis, Crustoderma fuscatum and Scopuloides magnacystidiata also are described as new. In addition, the new combination Crustoderma vulcanense is proposed. Keys to the species of Crustoderma, Radulomyces and Scopuloides are provided.