• Species: Mycobilimbia sabuletorum (Schreb.) Hafellner
• Remark: see: Bilimbia sabuletorum
• Fungus type: lichenized
• Treatment in Estonia: synonym
• tume samblasamblik

• Species: Mycobilimbia tetramera (De Not.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen ex Hafellner & Türk
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Mycoblastus alpinus (Fr.) Th. Fr. ex Hellb.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Mycoblastus fucatus (Stirt.) Zahlbr.
• Remark: see: Violella fucata
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Mycoblastus sanguinarius (L.) Norman
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• punetav vistarsamblik

• Species: Mycocalicium subtile (Pers.) Szatala
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Mycomicrothelia confusa D. Hawksw.
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Mycomicrothelia wallrothii (Hepp) D. Hawksw.
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Mycoporum antecellens (Nyl.) R.C. Harris
• Remark: earlier under Arthopyrenia antecellens (Nyl.) Arnold
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Naetrocymbe fraxini (A. Massal.) R.C. Harris
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: doubtful

• Species: Naetrocymbe punctiformis (Pers.) R.C. Harris
• Remark: earlier under Arthopyrenia punctiformis (Pers.) A. Massal.
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Naetrocymbe rhyponta (Ach.) R.C. Harris
• Remark: earlier under Arthopyrenia rhyponta (Ach.) A. Massal.
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Nectriopsis lecanodes (Cesati) Diederich & Schoers
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Neofuscelia loxodes (Nyl.) Essl.
• Remark: see: Xanthoparmelia loxodes
• Fungus type: lichenized
• Treatment in Estonia: synonym
• kera-ruugsamblik

• Species: Neofuscelia pulla var. delisei (Duby) R. Sant.
• Remark: see: Xanthoparmelia delisei
• Fungus type: lichenized
• Treatment in Estonia: synonym
• paljas ruugsamblik

• Species: Neofuscelia pulla (Ach.) Essl. var. pulla
• Remark: see: Xanthoparmelia pulla
• Fungus type: lichenized
• Treatment in Estonia: synonym
• paljas ruugsamblik

• Species: Neofuscelia verruculifera (Nyl.) Essl.
• Remark: see: Xanthoparmelia verruculifera
• Fungus type: lichenized
• Treatment in Estonia: synonym
• näsa-ruugsamblik

• Species: Nephroma arcticum (L.) Torss.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain extinct
• tundra-neersamblik

• Species: Nephroma bellum (Spreng.) Tuck.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kaunis neersamblik

• Species: Nephroma helveticum Ach.
• Remark: excluded as misidentification: re-identified as Nephroma parile and N. resupinatum
• Fungus type: lichenized
• Treatment in Estonia: misidentification
• Šveitsi neersamblik

• Species: Nephroma isidiosum (Nyl.) Gyeln.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kare neersamblik

• Species: Nephroma laevigatum Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• sile neersamblik

• Species: Nephroma parile (Ach.) Ach.
• Remark: includes earlier misidentification of Nephroma helveticum Ach.
• Fungus type: lichenized
• Treatment in Estonia: certain
• harilik neersamblik

• Species: Nephroma resupinatum (L.) Ach.
• Remark: includes earlier misidentification of Nephroma helveticum Ach.
• Fungus type: lichenized
• Treatment in Estonia: certain
• kääv-neersamblik

• Species: Niesslia cladoniicola D. Hawksw. & W. Gams
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

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