''Acolium'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...

in the family

Caliciaceae The Caliciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. Although the family has had its classification changed several times throughout its taxonomic history, the use of mode ...

. The genus has a widespread distribution and contains five species.

Species

*''

Acolium chloroconium ''Acolium'' is a genus of lichenized fungi in the family Caliciaceae The Caliciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. Although the family has had its classificatio ...

'' *'' Acolium inquinans'' *'' Acolium karelicum'' *'' Acolium marcianum'' *'' Acolium sessile''

References

Caliciales Lichen genera Taxa named by Erik Acharius Caliciales genera Taxa described in 1808 {{Caliciales-stub