List of species and infraspecific taxa
- Species: Tremella coppinsii Diederich & G. Marson
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tremella hypogymniae Diederich & M.S. Christ.
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tremella lichenicola Diederich
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tremella phaeophysciae Diederich & M.S. Christ.
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tremella ramalinae Diederich
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tremolecia atrata (Ach.) Hertel
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Trichonectria anisospora (Lowen) Van den Boom & Diederich
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Trichonectria hirta (Bloxam) Petch
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Tuckermannopsis chlorophylla (Willd.) Hale
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- ääris-oksasamblik
- Species: Umbilicaria cinerascens (Arnold) Frey
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- tuhk-kõrvsamblik
- Species: Umbilicaria cylindrica (L.) Delise ex Duby
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- rips-kõrvsamblik
- Species: Umbilicaria decussata (Vill.) Zahlbr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- võrk-kõrvsamblik
- Species: Umbilicaria deusta (L.) Baumg.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kare kõrvsamblik
- Species: Umbilicaria grisea Hoffm.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: doubtful extinct
- hall kõrvsamblik
- Species: Umbilicaria hyperborea (Ach.) Hoffm.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- põhja-kõrvsamblik
- Species: Umbilicaria nylanderiana (Zahlbr.) H. Magn.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Nylanderi kõrvsamblik
- Species: Umbilicaria polyphylla (L.) Baumg.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- hõlm-kõrvsamblik
- Species: Umbilicaria polyrrhiza (L.) Fr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- harjas-kõrvsamblik
- Species: Umbilicaria proboscidea (L.) Schrad.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kurd-kõrvsamblik
- Species: Umbilicaria torrefacta (Lightf.) Schrad.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- pits-kõrvsamblik
- Species: Umbilicaria vellea (L.) Hoffm.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain extinct
- suur kõrvsamblik
- Species: Unguiculariopsis lettaui (Grummann) Coppins
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Usnea articulata (L.) Hoffm.
- Remark: excluded as an erroneus record (no herbarium material)
- Fungus type: lichenized
- Treatment in Estonia: misidentification
- põis-habesamblik
- Species: Usnea barbata (L.) Weber ex F.H. Wigg.
- Remark: earlier under Usnea scabrata Nyl.
- Fungus type: lichenized
- Treatment in Estonia: certain
- kare habesamblik
- Species: Usnea chaetophora Stirt.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- hõre habesamblik