Species (103)
- Omphalia atrovelutina Romagn. 1971
- Omphalia cyathella J. Favre & Schweers 1944
- Omphalia sericea Romagn. 1978
- Omphalia fuscoalba F.H. Møller 1945
- Omphalia delectabilis (Peck) A.H. Sm. 1937
- Omphalia angustispora Joss. 1937
- Omphalia cephalotricha Joss. 1937
- Omphalia nitrosa Kauffman 1930
- Omphalia tortilis (Bolton) Gray 1821
- Omphalia osmophora (E.-J. Gilbert) Maire 1937
- Omphalia asterospora J.E. Lange 1930
- Omphalia galericolor Romagn. 1952
- Omphalia integrella var. caricicola (Lasch) J.E. Lange 1936
- Omphalia hepatica (Fr. : Fr.) Gillet 1876
- Omphalia cyathiformis (Bull. : Fr.) Quél. 1886
- Omphalia expallens (Pers. : Fr.) Kühner & Romagn. 1953
- Omphalia clusiliformis Kühner & Romagn. 1953
- Omphalia pseudopicta J.E. Lange 1930
- Omphalia maura (Fr.) Gillet 1876
- Omphalia picta (Fr. : Fr.) Gillet 1876
- Omphalia lignatilis (Pers. : Fr.) Quél. 1902
- Omphalia fallax Quél. 1896
- Omphalia fibula (Bull. : Fr.) P. Kumm. 1871
- Omphalia cuspidata Quél. 1881
- Omphalia viridis (Hornem.) J.E. Lange 1930
- Omphalia obatra J. Favre 1955
- Omphalia bisphaerigerella M. Lange 1946
- Omphalia fragilis (Schaeff.) Sacc. 1915
- Omphalia parvibulbosa Kauffman & A.H. Sm. 1933
- Omphalia griseopallida (Desm.) Quél. 1872
- Omphalia obscurata Kühner 1949
- Omphalia oniscus (Fr. : Fr.) Gillet 1876
- Omphalia epichysum var. icmadophila (Pers. : Fr.) Cejp 1973
- Omphalia muralis Ricken 1872
- Omphalia roseotincta A. Pearson 1952
- Omphalia giovanellae Bres. 1881
- Omphalia phyllophila Quél. 1886
- Omphalia abiegna (Berk. & Broome) J.E. Lange 1930
- Omphalia vesuviana (V. Brig.) Sacc. 1887
- Omphalia marginella (Pers. : Fr.) Joss. & Maire 1931
- Omphalia aulacomnii Jul. Schäff. 1947
- Omphalia cyanophylla (Fr.) Quél. 1872
- Omphalia cincta J. Favre 1948
- Omphalia umbellifera var. flava (Cooke) Rea 1922
- Omphalia grisella P. Karst. 1890
- Omphalia umbellifera var. pseudoandrosacea (Bull.) Cejp 1936
- Omphalia luteola Peck 1896
- Omphalia carbonaria Velen. 1920
- Gerronema sericeum (Romagn.) Clémençon 1982
- Omphalina galericolor (Romagn.) Bon 1975
- Omphalina albominutella E. Ludw. 2001
- Mycena pseudopicta (J.E. Lange) Kühner 1938
- Delicatula cuspidata (Quél.) Cejp 1938
- Clitopilus giovanellae (Bres.) Singer 1951
- Lichenomphalia umbellifera var. pseudoandrosacea (Bull.) M.M. Moser 1967
- Lichenomphalia grisella (P. Karst.) Redhead, Lutzoni, Moncalvo & Vilgalys
- Camarophyllopsis atrovelutina (Romagn.) Argaud 2002
- Gerronema cyathellum (J. Favre & Schweers ex Kuyper) Bon 1996
- Omphaliaster asterosporus (J.E. Lange) Lamoure 1971
- Delicatula integrella (Pers. : Fr.) Fayod 1889
- Fayodia bisphaerigerella (M. Lange) M. Lange & Sivertsen 1966
- Arrhenia obatra (J. Favre) Redhead, Lutzoni, Moncalvo & Vilgalys 2
- Clitocybe houghtonii (W. Phillips) Dennis 1954
- Clitocybe subspadicea (J.E. Lange) Bon & Chevassut 1973
- Hydropus marginellus (Pers. : Fr.) Singer 1943
- Arrhenia onisca (Fr.) Redhead, Lutzoni, Moncalvo & Vilgalys 2002
- Hemimycena delectabilis (Peck) Singer 1943
- Arrhenia rickenii (Hora) Watling 1989
- Omphalina subhepatica (Batsch) Murrill 1916
- Mycena picta (Fr.) Harmaja 1979
- Arrhenia obscurata (D.A. Reid) Redhead, Lutzoni, Moncalvo & Vilgalys
- Contumyces vesuvianus (V. Brig.) Redhead, Moncalvo, Vilgalys & Lutzoni 2
- Xeromphalina campanella (Batsch : Fr.) Maire 1934
- Hemimycena angustispora (Joss. ex P.D. Orton) Singer 1962
- Hemimycena cephalotricha (Joss.) Singer 1986
- Lyophyllum osmophorum (E.-J. Gilbert) E. Ludw. 2002
- Myxomphalia maura (Fr.) Hora 1960
- Xeromphalina cauticinalis (With.) Kühner & Maire 1934
- Hohenbuehelia longipes (Boud.) M.M. Moser 1967
- Lichenomphalia alpina (Britzelm.) Redhead, Lutzoni, Moncalvo & Vilgalys
- Pseudoclitocybe expallens (Pers. : Fr.) M.M. Moser 1967
- Laccaria tortilis (Bolton) Cooke 1884
- Pseudoomphalina pachyphylla (Fr.) Knudsen 1992
- Arrhenia discorosea (Pilát) Zvyagina, A.V. Alexandrova & Bulyonk. 2015
- Chromosera cyanophylla (Fr.) Redhead, Ammirati & Norvell 2012
- Sphagnomphalia brevibasidiata (Singer) Redhead, Moncalvo, Vilgalys & Lutzoni 200
- Pseudoclitocybe cyathiformis (Bull. : Fr.) Singer 1956
- Gamundia striatula (Kühner) Raithelh. 1983
- Lyophyllum anthracophilum Lasch 1966
- Arrhenia chlorocyanea (Pat.) Redhead, Lutzoni, Moncalvo & Vilgalys 2002
- Clitocybe phyllophila (Fr.) P. Kumm. 1871
- Rhodocybe fallax (Quél.) Singer 1946
- Rickenella fibula (Bull. : Fr.) Raithelh. 1973
- Arrhenia griseopallida (Desm.) Watling 1989