Diplotomma

Diplotomma is a genus of lichenized fungi in the family Caliciaceae. The genus has a widespread distribution and contains about 29 species. The genus was circumscribed by Julius von Flotow in 1849. It was later wrapped into Buellia before being segregated from that genus by David Hawksworth in 1980.

Selected species
, Species Fungorum accepts 14 species of Diplotomma:
 * Diplotomma alboatrum (Hoffm.) Flot. (1849)
 * Diplotomma cedricola (Werner) Etayo (2010)
 * ''Diplotomma chlorophaeum Szatala (1956)
 * Diplotomma epipolium (Ach.) Arnold (1869)
 * Diplotomma glaucoatrum (Nyl.) Cl.Roux (2015)
 * Diplotomma hedinii (H.Magn.) P.Clerc & Cl.Roux (2004)
 * Diplotomma murorum (A.Massal.) Coppins (1980)
 * Diplotomma niveum (Anzi) Szatala (1956)
 * Diplotomma parasiticum (B.de Lesd.) Diederich, Cl.Roux & Haluwyn (2014)
 * Diplotomma pharcidium (Ach.) M. Choisy (1950)
 * Diplotomma porphyricum Arnold (1872)
 * Diplotomma rivas-martinezii (Barreno & A. Crespo) Barreno & A. Crespo (2000)
 * Diplotomma venustum (Körb.) Körb. (1860)
 * Diplotomma vezdanum (P.Scholz & Knoph) Coppins (2002)