Auriculariales

Auriculariales incertae sedis

Basidiodendron

Basidiodendron alni Spirin & Malysheva (Spirin et al., 2020)

Basidiodendron caesiocinereum (Höhn. & Litsch.) Luck-Allen (Spirin et al., 2021)
≡ Bourdotia caesiocinerea (Höhn. & Litsch.) Bourdot & Galzin ex S. Lundell

Basidiodendron caucasicum Spirin, Malysheva & Kotiranta (Spirin et al., 2020)

Basidiodendron cinerellum (Bourdot & Galzin) Spirin & Malysheva (Spirin et al., 2021)

Basidiodendron cinereum (Bres.) Luck-Allen
≡ Bourdotia cinerea (Bres.) Bourdot & Galzin

Basidiodendron cremeum (McNabb) K. Wells & Raitv.

Basidiodendron deminutum (Bourdot) Luck-Allen (Spirin et al., 2020)
= Basidiodendron rimulentum (Bourdot & Galzin) Luck-Allen (Spirin et al., 2020)

Basidiodendron eyrei (Wakef.) Luck-Allen (Spirin et al., 2020)

Basidiodendron glaucum Spirin & K.H. Larss. (Spirin et al., 2021)

Basidiodendron globisporum Spirin & Malysheva (Spirin et al., 2020)

Basidiodendron grandinioides (Bourdot & Galzin) Luck-Allen (Spirin et al., 2020)
≡ Sebacina grandinioides (Bourdot & Galzin) D.P. Rogers

Basidiodendron microsporum Spirin, Malysheva & Kotiranta (Spirin et al., 2020)

Basidiodendron olivaceum Spirin & Malysheva (Spirin et al., 2020)

Basidiodendron pini (H.S. Jacks. & G.W. Martin) Luck-Allen

Basidiodendron radians (Rick) P. Roberts

Basidiodendron remotum Spirin, Malysheva & Kotiranta (Spirin et al., 2020)

Basidiodendron salebrosum Spirin & Malysheva (Spirin et al., 2020)

Basidiodendron trachysporum (Bourdot & Galzin) Spirin, M. Weiß & Miettinen (Spirin et al., 2021)

Basidiodendron walleynii Spirin, Malysheva & Schoutteten (Spirin et al., 2021)

Endoperplexa

Endoperplexa enodulosa (Hauerslev) P. Roberts (Roberts, 1999)

Gelacantha

Gelacantha pura Malysheva & Spirin (Spirin, Malysheva, Roberts, et al., 2019)

Guepinia

Guepinia helvelloides (DC.) Fr. 
≡ Tremiscus helvelloides (DC.) Donk
= Gyrocephalus rufus (Jacq.) Bref. (Donk, 1966)

Hauerslevia

Hauerslevia pulverulenta (Hauerslev) P. Roberts (Roberts, 1999)

Hyalodon

Hyalodon piceicola (Kühner ex Bourdot) Malysheva & Spirin (Malysheva et al., 2018)
= Protodontia filicina Parmasto (Malysheva et al., 2018)
= Protodontia piceicola (Kühner ex Bourdot) G.W. Martin (Malysheva et al., 2018)
= Protohydnum piceicola Kühner ex Bourdot (Malysheva et al., 2018)

Hyalodon sibiricus (Pilát) Nakasone (Nakasone et al., 2021)
≡ Acia sibirica Pilát
≡ Sarcodontia sibirica (Pilát) Nikol.

Hydrophana

Hydrophana sphaerospora (Bourdot & Galzin) Malysheva & Spirin (Spirin, Malysheva, Roberts, et al., 2019)
≡ Myxarium sphaerosporum (Bourdot & Galzin) D.A. Reid

Mycostilla

Mycostilla vermiformis (Berk. & Broome) Spirin & Malysheva (Spirin, Malysheva, Haelewaters, et al., 2019)
≡ Dacrymyces vermiformis Berk. & Broome
≡ Stypella vermiformis (Berk. & Broome) D.A. Reid
= Heterochaetella crystallina (Bourdot) Bourdot (Spirin, Malysheva, Haelewaters, et al., 2019)
= Sebacina psilochaeta (Bourdot & Galzin) L.S. Olive (Spirin, Malysheva, Haelewaters, et al., 2019)
= Heterochaetella dubia var. psilochaeta Bourdot & Galzin (Spirin, Malysheva, Haelewaters, et al., 2019)

Ofella

Ofella glaira (Lloyd) Spirin & Malysheva (Spirin, Malysheva, Roberts, et al., 2019)
≡ Exidiopsis glaira (Lloyd) K. Wells
≡ Stypella glaira (Lloyd) P. Roberts
≡ Tremella glaira Lloyd
≡ Myxarium glairum (Lloyd) Rödel

Proterochaete

Proterochaete adusta (Burt) Spirin & Malysheva (Alvarenga et al., 2019)
= Exidiopsis pallida K. Wells & Raitv. (Alvarenga et al., 2019)

Protoacia

Protoacia delicata Spirin & Malysheva (Spirin, Malysheva, Roberts, et al., 2019)

Protodontia

Protodontia subgelatinosa (P. Karst.) Pilát (Spirin, Malysheva, Roberts, et al., 2019)
≡ Stypella subgelatinosa (P. Karst.) P. Roberts
= Protohydnum lividum Bres. (Spirin, Malysheva, Roberts, et al., 2019)
= Protodontia uda Höhn. (Spirin, Malysheva, Roberts, et al., 2019)

Protohydnum

Protohydnum elevatum Malysheva & Spirin (Spirin et al., 2025)

Protohydnum galzinii (Bres.) Spirin & R.H. Nilsson (Spirin et al., 2025)
≡ Bourdotia galzinii (Bres.) Trotter
≡ Exidiopsis galzinii (Bres.) Killerm.

Protohydnum livescens (Bres.) Spirin & Malysheva (Spirin et al., 2025)
≡ Exidiopsis livescens (Bres.) Bourdot & Maire
≡ Sebacina livescens Bres.

Protomerulius

Protomerulius brachysporus (Luck-Allen) Spirin & Malysheva
≡ Heterochaetella brachyspora Luck-Allen

Protomerulius dubius (Bourdot & Galzin) Spirin & Malysheva
≡ Heterochaete dubia Bourdot & Galzin
≡ Stypella dubia (Bourdot & Galzin) P. Roberts

Protomerulius madidus Spirin & K.H. Larss.

Protomerulius pertusus Malysheva & Spirin

Pseudohydnum

Pseudohydnum alienum Spirin & Malysheva (Spirin et al., 2023)

Pseudohydnum gelatinosum (Scop.) P. Karst. (Spirin et al., 2023)
≡ Hydnum gelatinosum Scop.
≡ Tremellodon gelatinosus (Scop.) Fr. 

Pseudohydnum translucens Lloyd (Spirin et al., 2023)

Pseudohydnum umbrosum Malysheva & Spirin (Spirin et al., 2023)

Stypellopsis

Stypellopsis farlowii (Burt) Spirin & K.H. Larss.
≡ Protomerulius farlowii Burt

Stypellopsis hyperborea Spirin & Malysheva

References

Alvarenga R. L. M., Spirin V., Malysheva V., Gibertoni T. B., Larsson K.-H. 2019. Two new genera and six other novelties in Heterochaete sensu lato (Auriculariales, Basidiomycota) // Botany 97(8): 439–451. https://doi.org/10.1139/cjb-2019-0046

Donk M. A. 1966. Check list of European hymenomycetous Heterobasidiae // Persoonia - Molecular Phylogeny and Evolution of Fungi 4(2): 145–335.

Malysheva V., Spirin V., Miettinen O., Motato-Vásquez V., Hernawati, Seelan J. S. S., Larsson K.-H. 2018. Revision of Protohydnum (Auriculariales, Basidiomycota) // Mycological Progress 17(7): 805–814. https://doi.org/10.1007/s11557-018-1393-6

Nakasone K. K., Ortiz-Santana B., He S.-H. 2021. Taxonomic studies of crust fungi with spines in Radulomyces, Sarcodontia, and the new genus Noblesia // Mycological Progress 20(11): 1479–1501. https://doi.org/10.1007/s11557-021-01746-0

Roberts P. 1999. Rhizoctonia-forming fungi. A taxonomic guide. : Royal Botanic Gardens, Kew. 239 p.

Spirin V., Malysheva V., Haelewaters D., Larsson K.-H. 2019. Studies in the Stypella vermiformis group (Auriculariales, Basidiomycota) // Antonie van Leeuwenhoek 112(5): 753–764. https://doi.org/10.1007/s10482-018-01209-9

Spirin V., Malysheva V., Mendes-Alvarenga R. L., Kotiranta H., Larsson K.-H. 2020. Studies in Basidiodendron eyrei and similar-looking taxa (Auriculariales, Basidiomycota) // Botany 98(11): 623–638. https://doi.org/10.1139/cjb-2020-0045

Spirin V., Malysheva V., Roberts P., Trichies G., Savchenko A., Larsson K.-H. 2019. A convolute diversity of the Auriculariales (Agaricomycetes, Basidiomycota) with sphaeropedunculate basidia // Nordic Journal of Botany 37(7): e02394. https://doi.org/10.1111/njb.02394

Spirin V., Malysheva V., Schoutteten N., Viner I., Miettinen O., Nordén J., Ryvarden L., Kotiranta H., Verbeken A., Weiß M., Larsson K.-H. 2021. Studies in the Basidiodendron caesiocinereum complex (Auriculariales, Basidiomycota) // Mycological Progress 20(10): 1275–1296. https://doi.org/10.1007/s11557-021-01724-6

Spirin V., Malysheva V., Viner I., Alvarenga R. L. M., Grebenc T., Gruhn G., Savchenko A., Grootmyers D., Ryvarden L., Vlasák J., Larsson K.-H., Nilsson R. H. 2025. Additions to the taxonomy of the Auriculariales (Basidiomycota) with pedunculate basidia // Mycokeys 120: 339–392. https://doi.org/10.3897/mycokeys.120.155492

Spirin V., Malysheva V., Viner I., Dudka V., Grebenc T., Miettinen O. 2023. Taxonomy and multigene phylogeny of Pseudohydnum (Auriculariales, Basidiomycota) // Mycological Progress 22(6): 40. https://doi.org/10.1007/s11557-023-01895-4