• Species: Xanthoparmelia mougeotii (Schaer. ex D. Dietr.) Hale
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• Mougeot' koldsamblik

• Species: Xanthoparmelia pulla (Ach.) O. Blanco, A. Crespo, Elix, D. Hawksw. & Lumbsch
• Remark: earlier under Neofuscelia pulla var. pulla (Ach.) Essl.
• Fungus type: lichenized
• Treatment in Estonia: certain
• paljas koldsamblik (endine paljas ruugsamblik)

• Species: Xanthoparmelia somloënsis (Gyeln.) Hale
• Remark: see: Xanthoparmelia stenophylla
• Fungus type: lichenized
• Treatment in Estonia: synonym
• kitsahõlmine koldsamblik

• Species: Xanthoparmelia stenophylla (Ach.) Ahti & D. Hawksw.
• Remark: earlier under Xanthoparmelia somloënsis (Gyeln.) Hale
• Fungus type: lichenized
• Treatment in Estonia: certain
• kitsahõlmine koldsamblik

• Species: Xanthoparmelia verruculifera (Nyl.) O. Blanco, A. Crespo, Elix, D. Hawksw. & Lumbsch
• Remark: earlier under Neofuscelia verruculifera (Nyl.) Essl.
• Fungus type: lichenized
• Treatment in Estonia: certain
• näsa-koldsamblik (endine näsa-ruugsamblik)

• Species: Xanthoria calcicola Oxner
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• lubja-korpsamblik

• Species: Xanthoria candelaria (L.) Th. Fr.
• Remark: see: Polycauliona candelaria
• Fungus type: lichenized
• Treatment in Estonia: synonym
• pisi-korpsamblik

• Species: Xanthoria elegans (Link) Th. Fr.
• Remark: see: Rusavskia elegans
• Fungus type: lichenized
• Treatment in Estonia: synonym
• punakas korpsamblik

• Species: Xanthoria fallax (Arnold) Arnold
• Remark: see: Xanthomendoza fallax
• Fungus type: lichenized
• Treatment in Estonia: synonym
• lehtjas korpsamblik

• Species: Xanthoria fulva (Hoffm.) Poelt & Petutschnig
• Remark: see: Xanthomendoza fulva
• Fungus type: lichenized
• Treatment in Estonia: synonym
• soomusjas korpsamblik

• Species: Xanthoria lobulata (Flörke) de Lesd.
• Remark: excluded as misidentification: re-identified as Caloplaca holocarpa, Xanthoria parietina and X. polycarpa
• Fungus type: lichenized
• Treatment in Estonia: misidentification
• liibuv korpsamblik

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