• Species: Agonimia gelatinosa (Ach.) M. Brand & Diederich
• Remark: earlier under Polyblastia gelatinosa (Ach.) Th. Fr.
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Agonimia globulifera M. Brand & Diederich
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Agonimia tristicula (Nyl.) Zahlbr.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Alectoria sarmentosa (Ach.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• oksa-tuustsamblik

• Species: Amandinea cacuminum (Th. Fr.) H. Mayrhofer & Sheard
• Remark: earlier under Rinodina cacuminum (Th. Fr.) Malme
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Amandinea coniops (Wahlenb.) Scheid. & H. Mayrhofer
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Amandinea punctata (Hoffm.) Coppins & Scheid.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Amygdalaria panaeola (Ach.) Hertel & Brodo
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain extinct

• Species: Anaptychia ciliaris (L.) Körb. var. ciliaris
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: synonym
• harilik ripssamblik

• Species: Anaptychia ciliaris var. melanosticta (Ach.) Boistel
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: synonym
• meri-ripssamblik

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