• Species: Xanthoria parietina (L.) Th. Fr.
• Remark: includes earlier misidentification of Xanthoria lobulata (Flörke) de Lesd.
• Fungus type: lichenized
• Treatment in Estonia: certain
• harilik korpsamblik

• Species: Xanthoria polycarpa (Hoffm.) Th. Fr. ex Rieber
• Remark: see: Polycauliona polycarpa; includes earlier misidentification of Xanthoria lobulata (Flörke) de Lesd.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• viljakas korpsamblik

• Species: Xanthoria sorediata (Vain.) Poelt
• Remark: see: Rusavskia sorediata
• Fungus type: lichenized
• Treatment in Estonia: synonym
• teraline korpsamblik

• Species: Xanthoriicola physciae (Kalchbr.) D. Hawksw.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Xylographa opegraphella Nyl. ex Rothr.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Xylographa parallela (Ach.) Fr.
• Remark: includes earlier misidentification of Xylographa trunciseda (Th. Fr.) Minks
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Xylographa trunciseda (Th. Fr.) Minks
• Remark: After earlier misidentification (Randlane, 2006) re-recorded in 2021.
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Xylographa vitiligo (Ach.) J.R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Zwackhiomyces coepulonus (Norman) Grube & R. Sant.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Zwackhiomyces lecanorae (Stein.) Nik. Hoffm. & Hafellner
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Zwackhiomyces physciicola Alstrup
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Zwackhiomyces sphinctrinoides (Zwackh) Grube & Hafellner
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Lecidea leprarioides Tønsberg
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Agonimia vouauxii (B. de Lesd.) M. Brand & Diederich
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia arthonioides (Ach.) A.L. Sm.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia molendoi (Heufl. ex Frauenf.) R. Sant.
• Remark: Excluded as misidentification; re-identified as Bryostigma parietinarium
• Fungus type: lichenicolous
• Treatment in Estonia: misidentification

• Species: Candelaria pacifica M. Westb. & Arup
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• tera-leeksamblik

• Species: Catapyrenium daedaleum (Kremp.) Stein
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• lubi-rähksamblik

• Species: Catillaria atomarioides (Müll. Arg.) Kilias
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Cladonia humilis (With.) J.R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• väike porosamblik

• Species: Cladonia magyarica Vain. ex Gyeln.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• madjari porosamblik

• Species: Cladosporium licheniphilum Heuchert & U. Braun
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Didymellopsis pulposi (Zopf) Grube & Hafellner
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Epigloea soleiformis Döbbeler
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Lecania sambucina (Körb.) Arnold
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

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