Agaricales

Lichenomphaliaceae

Arrhenia

Arrhenia acerosa (Fr.) Kühner
≡ Arrhenia acerosa var. acerosa (Fr.) Kühner
≡ Leptoglossum acerosum (Fr.) M.M. Moser
≡ Pleurotellus acerosus (Fr.) Konrad & Maubl.
≡ Pleurotus acerosus (Fr.) Quél.

Arrhenia auriscalpium (Fr.) Fr. 

Arrhenia baeospora (Singer) Redhead, Lutzoni, Moncalvo & Vilgalys

Arrhenia bigelowii Voitk, Lickey & I. Saar (Voitk et al., 2022)

Arrhenia chlorocyanea (Pat.) Redhead, Lutzoni, Moncalvo & Vilgalys
Clitocybe smaragdina (Berk.) H.E. Bigelow & A.H. Sm. sensu Bigelow & Smith 1962
Omphalina smaragdina (Berk.) Malençon & Bertault sensu Malençon & Bertault 1975

Arrhenia discorosea (Pilát) Zvyagina, A.V. Alexandrova & Bulyonk.
≡ Omphalia discorosea Pilát
≡ Omphalina discorosea (Pilát) Herink & Kotl.
= Rhodocybe ulmi Lj.N. Vassiljeva (Zvyagina et al., 2015)
= Rhodocybe xylophila Vassilkov (Herink, Kotlaba, 1975; Zvyagina et al., 2015)

Arrhenia epichysium (Pers.) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Agaricus epichysium Pers.
≡ Omphalia epichysium (Pers.) P. Kumm.
≡ Omphalina epichysium (Pers.) Quél.

Arrhenia gerardiana (Peck) Elborne
≡ Omphalina gerardiana (Peck) Singer

Arrhenia griseopallida (Desm.) Watling
≡ Omphalia griseopallida (Desm.) P. Karst.
≡ Omphalina griseopallida (Desm.) Quél.
≡ Leptoglossum griseopallidum (Desm.) Cetto

Arrhenia latispora (J. Favre) Bon & Courtec.

Arrhenia leucotricha P.-A. Moreau & Corriol

Arrhenia lilacinicolor (Bon) P.-A. Moreau & Courtec.

Arrhenia lobata (Pers.) Kühner & Lamoure ex Redhead
≡ Leptoglossum lobatum (Pers.) Ricken
≡ Cantharellus lobatus (Pers.) Fr. 

Arrhenia obatra (J. Favre) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Omphalina obatra (J. Favre) P.D. Orton

Arrhenia obscurata (D.A. Reid) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Omphalina obscurata D.A. Reid

Arrhenia peltigerina (Peck) Redhead, Lutzoni, Moncalvo & Vilgalys

Arrhenia philonotis (Lasch) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Omphalia philonotis (Lasch) Quél.
≡ Omphalina philonotis (Lasch) Quél.

Arrhenia retiruga (Bull.) Redhead
≡ Cantharellus retirugus (Bull.) Pers.
≡ Leptotus retirugus (Bull.) P. Karst.

Arrhenia rickenii (Hora) Watling

Arrhenia rustica (Fr.) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Omphalia rustica (Fr.) Quél.
≡ Omphalina rustica (Fr.) Quél.
≡ Agaricus rusticus Fr. 

Arrhenia salina (Høil.) Bon & Courtec.
= Arrhenia littoralis Gulden

Arrhenia similis Gulden, Rian & I. Saar

Arrhenia spathulata (Fr.) Redhead
= Cyphella muscicola var. inaequilatera (Schumach.) Fr. 
= Leptoglossum muscigenum (Bull.) P. Karst.
= Cantharellus muscigenus (Bull.) Fr. 
= Dictyolus muscigenus (Bull.) Quél.
= Leptoglossum queletii (Pilát & Svrček) Corner (Redhead, 1984)

Arrhenia subglobisemen Corriol (Voitk et al., 2020)
Hohenbuehelia tremula (Schaeff.) Thorn & G.L. Barron sensu auct.
Scytinotopsis tremula (Schaeff.) Singer sensu Singer
Leptoglossum tremulum (Schaeff.) Singer sensu Singer, Moser
Agaricus tremulus Schaeff. sensu Fries
Pleurotus tremulus (Schaeff.) P. Kumm. sensu auct.

Arrhenia umbratilis (Fr.) Redhead, Lutzoni, Moncalvo & Vilgalys (Voitk, Saar, 2024)
≡ Agaricus umbratilis Fr. 
≡ Omphalia umbratilis (Fr.) Gillet
≡ Omphalina umbratilis (Fr.) Quél.
= Arrhenia telmatiaea (Berk. & Cooke) Voitk & I. Saar (Voitk, Saar, 2024)
= Omphalia telmatiaea (Berk. & Cooke) Sacc. (Voitk, Saar, 2024)
= Omphalina telmatiaea (Berk. & Cooke) Singer (Voitk, Saar, 2024)
= Omphalia philonotis f. telmatiaea (Berk. & Cooke) Singer (Voitk, Saar, 2024)
Arrhenia oniscus (Fr.) Redhead, Lutzoni, Moncalvo & Vilgalys sensu auct. (Voitk et al., 2022)
Omphalia oniscus (Fr.) Gillet sensu auct. (Voitk et al., 2022)
Omphalina oniscus (Fr.) Quél. sensu auct. (Voitk et al., 2022)

Arrhenia velutipes (P.D. Orton) Redhead, Lutzoni, Moncalvo & Vilgalys
≡ Omphalina velutipes P.D. Orton

Eonema

Eonema pyriforme (M.P. Christ.) Redhead, Lücking & Lawrey (Larsson, Ryvarden, 2021)
≡ Athelia pyriformis (M.P. Christ.) Jülich

Lichenomphalia

Lichenomphalia alpina (Britzelm.) Redhead, Lutzoni, Moncalvo & Vilgalys (Redhead et al., 2002)
≡ Omphalina alpina (Britzelm.) Bresinsky & Stangl
= Lichenomphalia luteovitellina (Pilát & Nannf.) Redhead, Lutzoni, Moncalvo & Vilgalys (Redhead et al., 2002)
= Omphalina luteovitellina (Pilát & Nannf.) M. Lange (Redhead et al., 2002)
= Phytoconis luteovitellina (Pilát & Nannf.) Redhead & Kuyper (Redhead et al., 2002)

Lichenomphalia ericetorum (Pers.) Voitk, Thorn & I. Saar (Voitk et al., 2023, 2024)
≡ Agaricus ericetorum Pers.
≡ Gerronema ericetorum (Pers.) Singer
≡ Omphalina ericetorum (Pers.) M. Lange
≡ Phytoconis ericetorum (Pers.) Redhead & Kuyper
= Agaricus oniscus Fr. (Voitk, 2022; Voitk et al., 2023, 2024)
= Omphalina pseudoandrosacea (Bull.) M.M. Moser (Voitk et al., 2023, 2024)
Agaricus umbellifer L. sensu auct. (Voitk et al., 2023, 2024)
Lichenomphalia umbellifera (L.) Redhead, Lutzoni, Moncalvo & Vilgalys sensu auct. (Voitk et al., 2023, 2024)
Omphalia umbellifera (L.) P. Kumm. sensu auct. (Voitk et al., 2023, 2024)
Omphalina umbellifera (L.) Quél. sensu auct. (Voitk et al., 2023, 2024)

Lichenomphalia hudsoniana (H.S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys (Redhead et al., 2002)
≡ Omphalina hudsoniana (H.S. Jenn.) H.E. Bigelow
= Omphalina luteolilacina (J. Favre) D.M. Hend. (Redhead et al., 2002)
= Coriscium viride (Ach.) Vain. (Redhead et al., 2002)
= Phytoconis viridis (Ach.) Redhead & Kuyper (Redhead et al., 2002)

Lichenomphalia velutina (Quél.) Redhead, Lutzoni, Moncalvo & Vilgalys (Redhead et al., 2002)
≡ Omphalina velutina (Quél.) Quél.
≡ Phytoconis velutina (Quél.) Redhead & Kuyper
= Omphalina grisella (P. Karst.) M.M. Moser

References

Herink J., Kotlaba F. 1975. What is Rhodocybe xylophila Vasil’k. and Omphalina lilaceorosea Svr. et Kub.? // Česká Mykologie 29(3): 157–166.

Larsson K.-H., Ryvarden L. 2021. Corticioid Fungi of Europe. Vol. 1. Acanthobasidium – Gyrodontium. Synopsis Fungorum. Vol. 43. Oslo: Fungiflora. 266 p.

Redhead S. A. 1984. Arrhenia and Rimbachia, expanded generic concepts, and a reevaluation of Leptoglossum with emphasis on muscicolous North American taxa // Canadian Journal of Botany 62(5). https://doi.org/10.1139/b84-126

Redhead S. A., Lutzoni F., Moncalvo J.-M., Vilgalys R. 2002. Phylogeny of agarics: Partial systematics solutions for core omphalinoid genera in the Agaricales (euagarics) // Mycotaxon 83: 19–57. https://doi.org/10.5962/p.414960

Voitk A. 2022. Typification of Agaricus cespitosus, Ag. oniscus, and Ag. sphagnicola and their synonymy with Lichenomphalia umbellifera // Mycotaxon 136(4): 789–818. https://doi.org/10.5248/136.789

Voitk A., Saar I. 2024. Three sphagnicolous species of Arrhenia: One old, one new, one recombined // Sydowia 77: 271–290. https://doi.org/10.12905/0380.sydowia77-2025-0271

Voitk A., Saar I., Lücking R., Moreau P.-A., Corriol G., Krisai-Greilhuber I., Thorn R. G., Hay C. R. J., Moncada B., Gulden G. 2020. Surprising morphological, ecological and ITS sequence diversity in the Arrhenia acerosa complex (Basidiomycota: Agaricales: Hygrophoraceae) // Sydowia 73: 133–162. https://doi.org/10.12905/0380.sydowia73-2020-0133

Voitk A., Saar I., Moncada B., Lickey E. B. 2022. Circumscription and typification of sphagnicolous omphalinoid species of Arrhenia (Hygrophoraceae) in Newfoundland and Labrador: Three obligate and one facultative species // Mycological Progress 21(6): 57. https://doi.org/10.1007/s11557-022-01806-z

Voitk A., Thorn G., Saar I. 2023 [2022]. Lichenomphalia umbellifera: Fungible and infungible epithets and species concepts // Mycotaxon 137(4): 629–668. https://doi.org/10.5248/137.629

Voitk A., Thorn G., Saar I. 2024. Revision: Lichenomphalia umbellifera: Fungible and infungible epithets and species concepts // Mycotaxon 137: S1–S48. https://doi.org/10.5248/137.629s

Zvyagina E. A., Alexandrova A. V., Bulyonkova T. M. 2015. Omphalina discorosea: Taxonomical position of the species // Микология и фитопатология 49(1): 19–25.