• Species: Arthonia digitatae Hafellner
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Arthonia dispersa (Schrad.) Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia epiphyscia Nyl.
• Remark: see: Bryostigma epiphyscium
• Fungus type: lichenicolous
• Treatment in Estonia: synonym

• Species: Arthonia farinacea (H. Olivier) R. Sant.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Arthonia galactinaria Leight.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Arthonia glaucomaria Nyl.
• Remark: see: Arthonia varians
• Fungus type: lichenicolous
• Treatment in Estonia: synonym

• Species: Arthonia incarnata Almq.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia intexta Almq.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Arthonia lapidicola (Taylor) Branth. & Rostr.
• Remark: see: Bryostigma lapidicola (Taylor) S.Y. Kondr. & Hur
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Arthonia leucopellaea (Ach.) Almq.
• Remark: see: Felipes leucopellaeus (Ach.) Frisch & G. Thor
• Fungus type: lichenized
• Treatment in Estonia: synonym
• valkjas tähnsamblik

• Species: Arthonia ligniaria Hellb.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia mediella Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia muscigena Th. Fr.
• Remark: see: Bryostigma muscigenum
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Arthonia patellulata Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia punctiformis Ach.
• Remark: see: Naevia punctiformis
• Fungus type: saprotrophic
• Treatment in Estonia: synonym

• Species: Arthonia radiata (Pers.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Arthonia ruana A. Massal.
• Remark: see: Arthothelium ruanum
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Arthonia spadicea Leight.
• Remark: see:Diarthonis spadicea
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Arthonia varians (Davies) Nyl.
• Remark: earlier under Arthonia glaucomaria Nyl.
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Arthonia vinosa Leight.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• puna-tähnsamblik

• Species: Arthopyrenia analepta Anzi
• Remark: earlier under Arthopyrenia lapponina Anzi
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Arthopyrenia antecellens (Nyl.) Arnold
• Remark: see: Mycoporum antecellens
• Fungus type: saprotrophic
• Treatment in Estonia: synonym

• Species: Arthopyrenia cerasi (Schrad.) A. Massal.
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Arthopyrenia cinereopruinosa (Schaer.) A. Massal.
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

• Species: Arthopyrenia grisea (Schleich. ex Schaer.) Körb.
• Remark:
• Fungus type: saprotrophic
• Treatment in Estonia: certain

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