• Species: Chromatochlamys muscorum (Th. Fr.) H. Mayrhofer & Poelt
• Remark: see: Thelenella muscorum
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Chrysothrix candelaris (L.) J.R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• puru-väävelsamblik

• Species: Chrysothrix chlorina (Ach.) J. R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Chrysothrix chrysophthalma (P. James) P. James & J.R. Laundon
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Chrysothrix flavovirens Tønsberg
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain

• Species: Cladina arbuscula (Wallr.) Hale & W.L. Culb.
• Remark: see: Cladonia arbuscula (Wallr.) Flot.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• mets-põdrasamblik

• Species: Cladina ciliata var. tenuis (Flörke) Ahti & M.J. Lai
• Remark: see: Cladonia ciliata Stirt.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• peen põdrasamblik

• Species: Cladina mitis (Sandst.) Hustich
• Remark: see: Cladonia mitis Sandst.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• mahe põdrasamblik

• Species: Cladina portentosa (Dufour) Follmann
• Remark: see: Cladonia portentosa (Dufour) Coem.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• sagris põdrasamblik

• Species: Cladina rangiferina (L.) Nyl.
• Remark: see: Cladonia rangiferina (L.) F.H. Wigg.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• harilik põdrasamblik

• Species: Cladina stellaris (Opiz) Brodo
• Remark: see: Cladonia stellaris (Opiz) Pouzar & Vězda
• Fungus type: lichenized
• Treatment in Estonia: synonym
• alpi põdrasamblik

• Species: Cladina stygia (Fr.) Ahti
• Remark: see: Cladonia stygia (Fr.) Ruoss
• Fungus type: lichenized
• Treatment in Estonia: synonym
• raba-põdrasamblik

• Species: Cladonia acuminata (Ach.) Norrl.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• teravtipp-porosamblik

• Species: Cladonia bacillaris (Leight.) Arnold
• Remark: see: Cladonia macilenta
• Fungus type: lichenized
• Treatment in Estonia: included in other taxon
• puhetunud porosamblik

• Species: Cladonia bacilliformis (Nyl.) Glück
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kepjas porosamblik

• Species: Cladonia borealis S. Stenroos
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• põhja-porosamblik

• Species: Cladonia botrytes (K.G. Hagen) Willd.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kobar-porosamblik

• Species: Cladonia brevis (Sandst.) Sandst.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• madal porosamblik

• Species: Cladonia caespiticia (Pers.) Flörke
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• mätas-porosamblik

• Species: Cladonia cariosa (Ach.) Spreng.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kõdu-porosamblik

• Species: Cladonia carneola (Fr.) Vain.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• lihakarva porosamblik

• Species: Cladonia cenotea (Ach.) Schaer.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• lehter-porosamblik

• Species: Cladonia cervicornis (Ach.) Flot.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• hirve-porosamblik

• Species: Cladonia cervicornis ssp. verticillata (Hoffm.) Ahti
• Remark: see: Cladonia verticillata (Hoffm.) Schaer.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• korrus-porosamblik

• Species: Cladonia chlorophaea (Flörke ex Sommerf.) Spreng.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• tera-porosamblik

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