Type study of Mycena phaeophylla reveals its conspecificity with M. clavata.

An extensive taxonomic study based on the type collection of Mycena phaeophylla revealed its conspecificity with M. clavata. Redescription of Kühner's original collections of M. phaeophylla is provided as well as a detailed description of M. clavata based on European material. A lectotype for M. phaeophylla is designated. Additional study on collections of M. speirea confirmed that this closely related species can be separated easily from M. clavata. New key to subsection Omphaliariae of section Hiemales is proposed.