16 September

Pluteus species are characterized by fruit bodies with a filamentous cap cuticle (pileipellis) and thick-walled pleurocystidia. Section Hispidoderma consists of species with a filamentous pileipellis and thin-walled pleurocystidia. Section Celluloderma is defined by a cystoderm pileipellis composed of ellipsoid to saccate-pyriform to vesiculose cells with or without cystidioid elements. The widespread genus contains over 300 species.