• Species: Dermatocarpon miniatum (L.) W. Mann
• Remark: includes Dermatocarpon arnoldianum and D. leptophyllum
• Fungus type: lichenized
• Treatment in Estonia: certain
• väike nahksamblik

• Species: Dibaeis baeomyces (L. f.) Rambold & Hertel
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• harilik roosasamblik

• Species: Didymellopsis collematum (J. Steiner) Grube & Hafellner
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Dimerella lutea (Dicks.) Trevis.
• Remark: see: Coenogonium luteum (Dicks.) Kalb & Lücking
• Fungus type: lichenized
• Treatment in Estonia: synonym
• kollane virvesamblik

• Species: Dimerella pineti (Ach.) Vězda
• Remark: see: Coenogonium pineti (Ach.) Lücking & Lumbsch
• Fungus type: lichenized
• Treatment in Estonia: synonym
• männi-virvesamblik

• Species: Diploschistes muscorum (Scop.) R. Sant.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• sambla-urnsamblik

• Species: Diploschistes scruposus (Schreb.) Norman
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• kivi-urnsamblik

• Species: Diplotomma alboatrum (Hoffm.) Flot.
• Remark: includes Diplotomma ambiquum (Ach.) Flagey and Diplotomma epipolium (Ach.) Arnold
• Fungus type: lichenized
• Treatment in Estonia: certain
• mustvalge silmsamblik

• Species: Diplotomma ambiquum (Ach.) Flagey
• Remark: included in Diplotomma alboatrum
• Fungus type: lichenized
• Treatment in Estonia: included in other taxon

• Species: Diplotomma epipolium (Ach.) Arnold
• Remark: included in Diplotomma alboatrum
• Fungus type: lichenized
• Treatment in Estonia: included in other taxon

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