In this paper, again, three new species of section Fragilipedes are described, Mycena olivaceoflava, M. rubidofusca and M. vicina. Mycena hepatica is a new species of section Rubromarginatae. The circumscription of section Insignes is slightly altered, as a result of which Mycena quinaultensis, M. conspersa, M. mitis and M. corrugans are transferred to section Fragilipedes.