Dimelaena is a genus of rimose to areolate placoidioid crustose lichens. It is in the family Caliciaceae. Members of the genus are commonly called mountain lichens, or moonglow lichens. The genus has a widespread distribution and contains eight species.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0