List of species and infraspecific taxa
- Species: Catillaria aphana (Nyl.) Coppins
- Remark: includes earlier misidentification of Catillaria cryptophila Th. Fr. & Almq.
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Catillaria chalybeia (Borrer) A. Massal.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Catillaria cryptophila Th. Fr. & Almq.
- Remark: excluded as misidentification: re-identified as Catillaria aphana
- Fungus type: lichenized
- Treatment in Estonia: misidentification
- Species: Catillaria lenticularis (Ach.) Th. Fr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Catillaria minuta (A. Massal.) Lettau
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Catillaria nigroclavata (Nyl.) Schuler
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Catinaria atropurpurea (Schaer.) Vězda & Poelt
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Cecidonia umbonella (Nyl.) Triebel & Rambold
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Cercidospora epipolytropa (Mudd) Arnold
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Cercidospora macrospora (Uloth) Hafellner & Nav.-Ros.
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Cetraria aculeata (Schreb.) Fr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- sarv-käosamblik
- Species: Cetraria ericetorum Opiz
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kitsas käosamblik
- Species: Cetraria islandica ssp. crispiformis (Räsänen) Kärnefelt
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Cetraria islandica (L.) Ach. ssp. islandica
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- islandi käosamblik
- Species: Cetraria muricata (Ach.) Eckfeldt
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- põõsasjas käosamblik
- Species: Cetraria sepincola (Ehrh.) Ach.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- harilik käosamblik
- Species: Cetrelia cetrarioides (Delise ex Duby) W.L. Culb. & C.F. Culb.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- harilik helksamblik
- Species: Cetrelia olivetorum (Nyl.) W.L. Culb. & C.F. Culb.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- oliiv-helksamblik
- Species: Chaenotheca brachypoda (Ach.) Tibell
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kahvatu varjusamblik
- Species: Chaenotheca brunneola (Ach.) Müll. Arg.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Chaenotheca chlorella (Ach.) Müll. Arg.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- roheline varjusamblik
- Species: Chaenotheca chrysocephala (Turner ex Ach.) Th. Fr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kollane varjusamblik
- Species: Chaenotheca cinerea (Pers.) Tibell
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- härma-varjusamblik
- Species: Chaenotheca ferruginea (Turner & Borrer) Mig.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- rooste-varjusamblik
- Species: Chaenotheca furfuracea (L.) Tibell
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- harilik varjusamblik