Species (19.209)
- Mycena rapiolens J. Favre 1957
- Mycena renati Quél. 1886
- Mycena rhenana Maas Geest. & Winterh. 1985
- Mycena riparia Maas Geest. 1986
- Mycena rosea f. candida Robich 2005
- Mycena roseoquercina M. Villarreal & Esteve-Rav. 2000
- Mycena rhododendri Robich 2003
- Mycena secessa Robich 2006
- Mycena scirpicola M. Villarreal, Heykoop, Esteve-Rav. & Maas Geest.
- Mycena setulosipes Robich 2004
- Mycena septentrionalis Maas Geest. 1984
- Mycena sepia J.E. Lange 1936
- Mycena seynii Quél. 1877
- Mycena silvae-nigrae Maas Geest. & Schwöbel 1987
- Mycena supina (Fr.) P. Kumm. 1871
- Mycena subfumosa Murrill 1916
- Mycena vitilis (Fr.) Quél. 1872
- Mycena winterhoffii Maas Geest. 1991
- Mycena vulgaris (Pers. : Fr.) P. Kumm. 1871
- Mycena xantholeuca Kühner 1938
- Mycenastrum corium (Guers.) Desv. 1842
- Mycena zephirus (Fr.) P. Kumm. 1871
- Mycenella margaritispora (J.E. Lange) Singer 1951
- Mycenella lasiosperma (Bres.) Singer 1943
- Mycetinis alliaceus (Jacq.) Earle ex A.W. Wilson & Desjardin 2005
- Mycetinis epidryas Kühner ex Antonín & Noordel. 2008
- Mycocalia sphagneti J.T. Palmer 1963
- Mycogloea macrospora (Berk. & Broome) McNabb 1965
- Mycena pilosella var. heterocystidiosa Robich 2000
- Mycena polygramma (Bull. : Fr.) Gray 1821
- Mycena polyadelpha (Lasch) Kühner 1938
- Mycena pura var. alba Gillet 1876
- Mycena querciramuli Robich 2003
- Mycena rosella (Fr.) P. Kumm. 1871
- Mycena rubromarginata (Fr. : Fr.) P. Kumm. 1871
- Mycena schildiana Maas Geest. 1997
- Mycena sanguinolenta (Alb. & Schwein. : Fr.) P. Kumm. 1871
- Mycena romagnesiana Maas Geest. 1991
- Mycena silvae-pristinae Veerkamp & Kuyper 1997
- Mycena sororia Perr.-Bertr., Boissel. & Lambourd. 1996
- Mycena simia Kühner 1958
- Mycena spinulosipes Robich 2004
- Mycena smithiana Kühner 1938
- Mycena stipata Maas Geest. & Schwöbel 1987
- Mycena subaquosa A.H. Sm. 1939
- Mycena subcana A.H. Sm. 1947
- Mycena subconcolor A.H. Sm. 1947
- Mycena tenuicorticola Robich 2004
- Mycena subtilis Robich 2005
- Mycena ticinensis Robich 1996
- Mycena tephrophylla Maas Geest. & Schwöbel 1989
- Mycena tenuispinosa J. Favre 1957
- Mycena urania (Fr.) Quél. 1872
- Mycena ustalis Aronsen & Maas Geest. 1969
- Mycena tristis Maas Geest. 1988
- Mycena venustula Quél. 1883
- Mycena valida Maas Geest. & Münzmay 1997
- Mycena verna Maas Geest. 1998
- Mycena verrucosocystis Robich 2007
- Mycena truncimuscicola Robich 2009
- Mycena tubarioides (Maire) Kühner 1938
- Mycena vexans Sacc. 1887
- Mycena vitilis var. carsica Robich 1999
- Mycenella bryophila (Voglino) Singer 1951
- Mycenella favreana E. Horak 1987
- Mycenella margaritifera (Maire) Maas Geest. 1981
- Mycenella rubropunctata Boekhout 1985
- Mycenella salicina (Velen.) Singer 1951
- Mycenella trachyspora (Rea) Boekhout 1973
- Mycenella variispora Robich 1998
- Mycetinis scorodonius (Fr.) A.W. Wilson & Desjardin 2005
- Mycocalia duriaeana (Tul. & C. Tul.) J.T. Palmer 1961
- Mycocalia denudata (Fr.) J.T. Palmer 1961
- Mycocalia minutissima (J.T. Palmer) J.T. Palmer 1961
- Mycorrhaphium citrinum Ryvarden 1989
- Mycorrhaphium pusillum (Brot. : Fr.) Maas Geest. 1962
- Myriostoma coliforme (Dicks.) Corda 1842
- Mythicomyces corneipes (Fr.) Redhead & A.H. Sm. 1986
- Myxarium grilletii (Boud.) D.A. Reid 1973
- Myxarium subsphaerosporum Kisim.-Hor., Oberw. & L.D. Gómez 2000
- Myxomphalia agloea (Singer & Pass.) Antonín 1999
- Myxomphalia invita (P. Karst.) M.M. Moser 1986
- Myxomphalia maura (Fr.) Hora 1960
- Naohidemyces vacciniorum (J. Schröt.) Spooner 1999
- Myochromella boudieri (Kühner & Romagn.) V. Hofst., Clémençon, Moncalvo
- Myxarium glairum (Lloyd) Rödel 2017
- Mycogloea carnosa L.S. Olive 1950
- Mycopan scabripes (Murrill) Redhead, Moncalvo & Vilgalys 2013
- Mycena oregonensis A.H. Sm. 1936
- Mycena peyerimhoffii Maire 1932
- Mycena picta (Fr.) Harmaja 1979
- Mycena pelliculosa (Fr.) Quél. 1873
- Mycena phoenicis-canariensis Robich 2005
- Mycena pinastri Robich 2006
- Mycena pilosella Maas Geest. 1988
- Mycena pinus-rigidae Robich 1999