Russulales

Stereaceae

Aleurodiscus

Aleurodiscus amorphus (Pers.) J. Schröt. (Larsson, Ryvarden, 2021)
≡ Corticium amorphum (Pers.) Fr. 

Aleurodiscus aurantius (Pers.) J. Schröt. (Larsson, Ryvarden, 2021)

Aleurodiscus ljubarskii Parmasto

Conferticium

Conferticium insidiosum (Bourdot & Galzin) Hallenb. (Larsson, Ryvarden, 2021)
≡ Gloeocystidiellum insidiosum (Bourdot & Galzin) Donk

Conferticium ochraceum (Fr.) Hallenb. (Larsson, Ryvarden, 2021)
≡ Thelephora ochracea Fr. 
≡ Corticium ochraceum (Fr.) Fr. 
≡ Gloeocystidiellum ochraceum (Fr.) Donk
≡ Gloeocystidium ochraceum (Fr.) Höhn. & Litsch.

Gloeocystidiopsis

Gloeocystidiopsis rava (Burt) S.H. He & Y.F. Cao (Xu et al., 2025)
≡ Conferticium ravum (Burt) Ginns & G.W. Freeman
= Conferticium karstenii (Bourdot & Galzin) Hallenb. (Ginns, Freeman, 1994)
= Gloeocystidiellum karstenii (Bourdot & Galzin) Donk (Ginns, Freeman, 1994)
= Gloeocystidium karstenii Bourdot & Galzin (Ginns, Freeman, 1994)

Gloeomyces

Gloeomyces cerussatus (Bres.) S.H. He (Xu et al., 2025)
≡ Acanthophysellum cerussatum (Bres.) Parmasto
≡ Aleurodiscus cerussatus (Bres.) Höhn. & Litsch.
= Acanthophysellum lapponicum (Litsch.) Sheng H. Wu, Boidin & C.Y. Chien (Larsson, Ryvarden, 2021)
= Aleurodiscus lapponicus Litsch. (Larsson, Ryvarden, 2021)
= Acanthophysellum minor (Pilát) Sheng H. Wu, Boidin & C.Y. Chien (Larsson, Ryvarden, 2021)

Gloeomyces dextrinoideocerussatus (Manjón, M.N. Blanco & G. Moreno) S.H. He (Xu et al., 2025)
≡ Acanthophysellum dextrinoideocerussatum (Manjón, M.N. Blanco & G. Moreno) Sheng H. Wu, Boidin & C.Y. Chien
≡ Aleurodiscus dextrinoideocerussatus Manjón, M.N. Blanco & G. Moreno

Gloeosoma

Gloeosoma mirabile (Berk. & M.A. Curtis) Rajchenb., Pildain & C. Riquelme (Rajchenberg et al., 2021)
= Aleurodiscus alboroseus Bres. (Núñez, Ryvarden, 1997)

Megalocystidium

Megalocystidium chinense (Pilát) S.H. He & Nakasone (Xu et al., 2025)
≡ Stereum peculiare Parmasto, Boidin & Dhingra
≡ Xylobolus peculiare (Parmasto, Boidin & Dhingra) Ryvarden

Megalocystidium diffissum (Sacc.) K.H. Larss. & Spirin (Spirin et al., 2021)
≡ Peniophora diffissa Sacc.
≡ Aleurodiscus diffissus (Sacc.) Burt
= Aleurodiscus sajanensis Murashk. ex Pilát (Pilát, 1934; Lemke, 1964; Spirin et al., 2021)

Megalocystidium leucoxanthum (Bres.) Jülich (Bernicchia, Gorjón, 2010)
≡ Gloeocystidiellum leucoxanthum (Bres.) Boidin
≡ Gloeocystidium leucoxanthum (Bres.) Höhn. & Litsch.
= Gloeocystidiellum leucoxanthum var. brevisporum Parmasto (Bernicchia, Gorjón, 2010)

Megalocystidium luridum (Bres.) Jülich (Bernicchia, Gorjón, 2010)
≡ Gloeocystidiellum luridum (Bres.) Boidin
≡ Gloeocystidium luridum (Bres.) Höhn. & Litsch.
= Corticium luteum Bres. (Nakasone, 2008)
= Gloeocystidium luteum (Bres.) Höhn. & Litsch. (Nakasone, 2008)

Megalocystidium olens Spirin & Volobuev (Spirin et al., 2021)

Megalocystidium pellitum Spirin & Kotir. (Spirin et al., 2021)

Megalocystidium perticatum Spirin & Volobuev (Spirin et al., 2021)

Megalocystidium salicis Spirin, Miettinen & K.H. Larss. (Spirin et al., 2021)

Stereum

Stereum complicatum (Fr.) Fr. (Ryvarden, 2020)
= Stereum ochraceoflavum (Schwein.) Sacc. (Ryvarden, 2020)
= Stereum rameale (Pers.) Burt (Ryvarden, 2020)
= Stereum reflexulum D.A. Reid (Ryvarden, 2020)

Stereum euroasiaticum Ghob.-Nejh., Langer & Gorjón (Ghobad-Nejhad et al., 2025)

Stereum gausapatum (Fr.) Fr. (Ryvarden, 2020)
≡ Haematostereum gausapatum (Fr.) Pouzar
= Stereum cristulatum Quél. (Ryvarden, 2020)
= Stereum gausapatum f. cristulatum Quél. (Ryvarden, 2020)
= Stereum quercinum Potter (Ryvarden, 2020)

Stereum hirsutum (Willd.) Pers. (Ryvarden, 2020)
≡ Thelephora hirsuta Willd.
= Stereum hirsutum f. obscurum Pilát
= Stereum hirsutum f. setosum Pilát

Stereum rugosum Pers. (Ryvarden, 2020)
≡ Thelephora rugosa (Pers.) Pers.
≡ Haematostereum rugosum (Pers.) Pouzar

Stereum sanguinolentum (Alb. & Schwein.) Fr. (Ryvarden, 2020)
≡ Thelephora sanguinolenta Alb. & Schwein.
≡ Haematostereum sanguinolentum (Alb. & Schwein.) Pouzar
= Stereum crispum (Pers.) Quél. (Ryvarden, 2020)
= Stereum rigens (P. Karst.) Sacc. (Ryvarden, 2020)

Stereum subtomentosum Pouzar
= Stereum arcticum (Fr.) Mussat (Ryvarden, 2020)
= Stereum ochroleucum subsp. arcticum Fr. (Ryvarden, 2020)

Stereum versicolor (Sw.) Fr. (Ryvarden, 2020)
= Stereum insignitum Quél. (Ryvarden, 2020)
= Stereum lobatum (Kunze ex Fr.) Fr. (Ryvarden, 2020)
= Stereum ostrea (Blume & T. Nees) Fr. (Ryvarden, 2020)

Xylobolus

Xylobolus frustulatus (Pers.) P. Karst. (Bernicchia, Gorjón, 2010)
≡ Stereum frustulosum (Pers.) Fr. 

Xylobolus lividocoeruleus (P. Karst.) S.H. He & Yun L. Xu (Xu et al., 2025)
≡ Acanthophysellum lividocoeruleum (P. Karst.) Parmasto
≡ Acanthophysium lividocoeruleum (P. Karst.) Boidin
≡ Corticium lividocoeruleum P. Karst.
≡ Gloeocystidium lividocoeruleum (P. Karst.) Höhn. & Litsch.
≡ Aleurodiscus lividocoeruleus (P. Karst.) P.A. Lemke

Xylobolus subpileatus (Berk. & M.A. Curtis) Boidin (Bernicchia, Gorjón, 2010)
≡ Stereum subpileatum Berk. & M.A. Curtis

References

Bernicchia A., Gorjón S. P. 2010. Corticiaceae s.l. Fungi Europaei. Vol. 12. Italia: Edizioni Candusso. 1008 p.

Ghobad-Nejhad M., Langer E., Gorjón S. 2025. Morphological and phylogenetic evidence reveal a new species in Stereum (Russulales, Basidiomycota) // Nova Hedwigia 121(1–2): 139–151. https://doi.org/10.1127/nova_hedwigia/2025/1063

Ginns J. H., Freeman G. W. 1994. The Gloeocystidiellaceae (Basidiomycota, Hericiales) of North America. Bibliotheca Mycologica. Vol. 157. Berlin; Stuttgart: J. Cramer. 118 p.

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

Lemke P. A. 1964. The genus Aleurodiscus (sensu stricto) in North America // Canadian Journal of Botany 42(2): 213–282. https://doi.org/10.1139/b64-021

Nakasone K. K. 2008. Type studies of corticioid Hymenomycetes described by Bresadola // Cryptogamie, Mycologie 29(3): 231–257.

Núñez M., Ryvarden L. 1997. The genus Aleurodiscus (Basidiomycotina). Synopsis Fungorum. Vol. 12. Oslo: Fungiflora. 164 p.

Pilát A. 1934 [1933]. Additamenta ad floram Sibiriae Asiaeque orientalis mycologicam. Pars secunda // Bulletin de la Société Mycologique de France 49(3–4): 256–339.

Rajchenberg M., Pildain M. B., Errasti A. de, Riquelme C., Becerra J., Torres-Díaz C., Cabrera-Pardo J. R. 2021. Species and genera in Aleurodiscus sensu lato as viewed from the Southern Hemisphere // Mycologia 113(6): 1264–1277. https://doi.org/10.1080/00275514.2021.1940671

Ryvarden L. 2020. The genus Stereum – a synopsis // Synopsis Fungorum 40: 46–96.

Spirin V., Volobuev S., Malysheva V., Miettinen O., Kotiranta H., Larsson K.-H. 2021. Identity of the subalpine–subarctic corticioid fungus Megalocystidium leucoxanthum (Russulales, Basidiomycota) and six related species // Plant Ecology and Evolution 154(2): 231–244. https://doi.org/10.5091/plecevo.2021.1857

Xu Y. L., Cao Y. F., Liu S. L., Nakasone K. K., He S. H. 2025. Taxonomy and phylogeny of Stereaceae (Russulales, Basidiomycota): Two new genera, nine new species and twenty new combinations // Persoonia - Molecular Phylogeny and Evolution of Fungi 54(1): 119–145. https://doi.org/10.3114/persoonia.2025.54.04