Circinaria

Circinaria is a genus of crustose lichens in the family Megasporaceae. It was circumscribed by Johann Heinrich Friedrich Link in 1809.

Species
, Species Fungorum accepts 31 species of Circinaria:
 * Circinaria affinis (Eversm.) Sohrabi (2012)
 * Circinaria arida Owe-Larss., A.Nordin & Tibell (2011)
 * Circinaria caesiocinerea (Nyl. ex Malbr.) A.Nordin, Savić & Tibell (2010)
 * Circinaria calcarea (L.) A.Nordin, Savić & Tibell (2010)
 * Circinaria cerebroides (Mereschk.) Sohrabi (2012)
 * Circinaria contorta (Hoffm.) A.Nordin, Savić & Tibell (2010)
 * Circinaria crespiana (V.J.Rico) Sohrabi & V.J.Rico (2013)
 * Circinaria cupreogrisea (Th.Fr.) A.Nordin, Savić & Tibell (2010)
 * Circinaria deminuta P.M.McCarthy & Elix (2020) – Australia
 * Circinaria digitata (Sohrabi & Litterski) Sohrabi (2012)
 * Circinaria elmorei (E.D.Rudolph) Owe-Larss., A.Nordin & Sohrabi (2011)
 * Circinaria emiliae (Tomin) A.Nordin, Savić & Tibell (2010)
 * Circinaria esculenta (Pall.) Sohrabi (2012)
 * Circinaria fruticulosa (Eversm.) Sohrabi (2012)
 * Circinaria gibbosa (Ach.) A.Nordin, Savić & Tibell (2010)
 * Circinaria hispida (Mereschk.) A.Nordin, Savić & Tibell (2010)
 * Circinaria jussuffii (Link) Sohrabi (2016)
 * Circinaria lacunosa (Mereschk.) Sohrabi (2012)
 * Circinaria laxilobata G.Ismayil, A.Abbas & S.Y.Guo (2019)
 * Circinaria leprosescens (Sandst.) A.Nordin, Savić & Tibell (2010)
 * Circinaria maculata (H.Magnusson) Q.Ren (2018)
 * Circinaria mansourii (Sohrabi) Sohrabi (2013)
 * Circinaria ochraceoalba (H.Magn.) Q.Ren (2018)
 * Circinaria rogeri (Sohrabi) Sohrabi (2012)
 * Circinaria rostamii Sohrabi (2012)
 * Circinaria schafeevii (Tomin) Q.Ren (2018)
 * Circinaria scyphulifera Paukov, Chesnokov & Konoreva (2018) – Russia
 * Circinaria serenensis (Cl.Roux & M.Bertrand) A.Nordin (2016)
 * Circinaria subochracea (H.Magn.) Q.Ren (2018)
 * Circinaria tominii (Oxner) Sohrabi (2012)
 * Circinaria tortuosa (H.Magnusson) Q.Ren (2018)
 * Circinaria transbaicalica (Oxner) Q.Ren (2018)