• Species: Lecanora rugosella Zahlbr.
• Remark: see: Lecanora chlarotera
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora rupicola (L.) Zahlbr.
• Remark: see: Glaucomaria rupicola (L.) P.F. Cannon
• Fungus type: lichenized
• Treatment in Estonia: synonym
• kalju-liudsamblik

• Species: Lecanora saligna (Schrad.) Zahlbr.
• Remark: see: Lecanoropsis saligna (Schrad.) Ivanovich & Printzen
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora salina H. Magn.
• Remark: see: Myriolecis salina (H. Magn.) Śliwa, Zhao Xin & Lumbsch
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora sambuci (Pers.) Nyl.
• Remark: see: Myriolecis sambuci (Pers.) Clem.
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora sarcopidoides (A. Massal.) A.L. Sm.
• Remark: excluded as misidentification: re-identified as Lecania cyrtella
• Fungus type: lichenized
• Treatment in Estonia: misidentification

• Species: Lecanora sorediata (Räsänen ex Vain.) Räsänen
• Remark: excluded as misidentification: re-identified as Lecanora pulicaris
• Fungus type: lichenized
• Treatment in Estonia: misidentification

• Species: Lecanora strobilina (Spreng.) Kieff.
• Remark: see: Zeora strobilina (Spreng.) L.M. Weber & Ivanovich-Hichins
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora subcarpinea Szatala
• Remark: see: Glaucomaria subcarpinea (Szatala) S.Y. Kondr., Lőkös & Farkas
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Lecanora subintricata (Nyl.) Th. Fr.
• Remark: see: Lecanoropsis subintricata (Nyl.) Ivanovich & Printzen
• Fungus type: lichenized
• Treatment in Estonia: synonym

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