• Species: Polycoccum squamarioides (Mudd) Arnold
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Polysporina simplex (Davies) Vězda
• Remark: see: Acarospora privigna (Ach.) A. Scneid.
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Porina aenea (Wallr.) Zahlbr.
• Remark: see: Pseudosagedia aenea
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Porina chlorotica (Ach.) Müll. Arg.
• Remark: see: Pseudosagedia chlorotica
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Porina linearis (Leight.) Zahlbr.
• Remark: see: Pseudosagedia linearis
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Porpidia cinereoatra (Ach.) Hertel & Knoph
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Porpidia crustulata (Ach.) Hertel & Knoph
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Porpidia macrocarpa (DC.) Hertel & A.J. Schwab
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Porpidia soredizodes (Lamy ex Nyl.) J.R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Porpidia speirea (Ach.) Kremp.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

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