• Species: Pyrenula nitidella (Schaer.) Müll. Arg.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• õli-luulissamblik

• Species: Pyrrhospora cinnabarina (Sommerf.) M. Choisy
• Remark: see: Ramboldia cinnabarina
• Fungus type: lichenized
• Treatment in Estonia: synonym extinct

• Species: Pyrrhospora quernea (Dicks.) Körb.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Raciborskiomyces peltigericola (D. Hawksw.) M.E. Barr
• Remark: see: Niesslia peltigericola (D. Hawksw.) Etayo
• Fungus type: lichenicolous
• Treatment in Estonia: synonym

• Species: Ramalina baltica Lettau
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• balti rihmsamblik

• Species: Ramalina calicaris (L.) Fr.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• vagu-rihmsamblik

• Species: Ramalina capitata (Ach.) Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: doubtful extinct
• püstine rihmsamblik

• Species: Ramalina dilacerata (Hoffm.) Hoffm.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• väike rihmsamblik

• Species: Ramalina elegans (Bagl. & Carestia) Jatta
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• jäik rihmsamblik

• Species: Ramalina farinacea (L.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• harilik rihmsamblik

• Species: Ramalina fastigiata (Pers.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kimp-rihmsamblik

• Species: Ramalina fraxinea (L.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• saare-rihmsamblik

• Species: Ramalina obtusata (Arnold) Bitter
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kiiver-rihmsamblik

• Species: Ramalina pollinaria (Westr.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• tolmu-rihmsamblik

• Species: Ramalina polymorpha (Lilj.) Ach.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• ranna-rihmsamblik

• Species: Ramalina siliquosa (Huds.) A.L. Sm.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kivi-rihmsamblik

• Species: Ramalina sinensis Jatta
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• hiina rihmsamblik

• Species: Ramalina subfarinacea (Nyl. ex Cromb.) Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kitsas rihmsamblik

• Species: Ramalina thrausta (Ach.) Nyl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• niitjas rihmsamblik

• Species: Ramboldia insidiosa (Th. Fr.) Hafellner
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Ramonia luteola Vězda
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Refractohilum peltigerae (Keissl.) D. Hawksw.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Reichlingia leopoldii Diederich & Scheid.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Rhizocarpon badioatrum (Flörke ex Spreng.) Th. Fr.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain extinct

• Species: Rhizocarpon cinereovirens (Müll. Arg.) Vain.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

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