• Species: Collema subnigrescens Degel.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• mustjas limasamblik

• Species: Collema tenax (Sw.) Ach.
• Remark: see: Enchylium tenax
• Fungus type: lichenized
• Treatment in Estonia: synonym
• sitke limasamblik

• Species: Collema undulatum Laurer ex Flot.
• Remark: see: Lathagrium undulatum
• Fungus type: lichenized
• Treatment in Estonia: synonym
• laineline limasamblik

• Species: Cornutispora lichenicola D. Hawksw. & B. Sutton
• Remark: see: Spirographa lichenicola (D. Hawksw. & B. Sutton) Flakus, Etayo & Miądl.
• Fungus type: lichenicolous
• Treatment in Estonia: synonym

• Species: Corticifraga fuckelii (Rehm) D. Hawksw. & R. Sant.
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Cybebe gracilenta (Ach.) Tibell
• Remark: see: Chaenotheca gracilenta
• Fungus type: lichenized
• Treatment in Estonia: synonym
• sire säärsamblik

• Species: Cyphelium inquinans (Sm.) Trevis.
• Remark: see: Acolium inquinans (Sm.) A. Massal.
• Fungus type: lichenized
• Treatment in Estonia: synonym
• rant-tünnsamblik

• Species: Cyphelium lucidum (Th. Fr.) Th. Fr.
• Remark: see: Calicium lucidum (Th. Fr.) M. Prieto & Wedin
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Cyphelium notarisii (Tul.) Blomb. & Forssell
• Remark: see: Calicium notarisii (Tul.) M. Prieto & Wedin
• Fungus type: lichenized
• Treatment in Estonia: synonym

• Species: Cyphelium sessile (Pers.) Trevis.
• Remark: see: Acolium sessile (Pers.) Arnold
• Fungus type: lichenicolous
• Treatment in Estonia: synonym

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