• Species: Ochrolechia bahusiensis H. Magn.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Opegrapha calcarea Turn. ex Sm.
• Remark: See: Arthonia calcarea
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Peltigera frippii Holt.-Hartw.
• Remark: excluded as misidentification: re-identified as Peltigera castanea
• Fungus type: lichenized
• Treatment in Estonia: misidentification
• Frippi kilpsamblik

• Species: Phaeospora parasitica (Lönnr.) Zopf
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Phaeospora rimosicola (Leight. ex Mudd) Hepp ex Stein
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Polyblastia sendtneri Kremp.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Staurothele rupifraga (A. Massal.) Arnold
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Stigmidium clauzadei Cl. Roux & Nav.-Ros.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Thelidium olivaceum (Fr.) Körb.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Thelidium papulare (Fr.) Arnold
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species:
• Remark:
• Fungus type:
• Treatment in Estonia: