Psora is a genus of lichen-forming fungi in the family Psoraceae. Members of the genus are commonly called fishscale lichens. Lichens in the genus Psora are known to have a squamulose thallus and anthraquinones in the hymenium.
The Roccellaceae are a family of fungi in the order Arthoniomycetes. Most taxa are lichenized with green algae, although some are lichenicolous, growing on other lichens.
Ochrolechia is a genus of crustose lichens in the family Ochrolechiaceae.
Toninia is a genus of lichen-forming fungi in the family Ramalinaceae.
Sarcogyne is a genus of crustose lichens in the family Acarosporaceae. It was circumscribed by German botanist Julius von Flotow in 1850. A proposal has been put forth in 2021 to assign Sarcogyne clavus as the type species of the genus, "as it represents the original concept of Sarcogyne as having melanized lecideine apothecia without algae in the margin".
Sporopodium is a genus of lichen-forming fungi in the family Pilocarpaceae.
Amandinea is a genus of lichenized fungi in the family Caliciaceae. Genetic studies indicates that the genus Amandinea and Buellia are the same, although this is not widely accepted.
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.
Arthothelium is a genus of lichenized fungi in the family Arthoniaceae.
Catapyrenium is a genus of lichens in the family Verrucariaceae. The genus was circumscribed by German botanist Julius von Flotow in 1850.
Tylophoron is a genus of lichen-forming fungi in the family Arthoniaceae. The genus was circumscribed in 1862 by Finnish lichenologist William Nylander.
Nesolechia is a genus of parasitic fungi in the family Parmeliaceae. All three species in the genus grow on lichens. Nesolechia probably evolved from a lichen ancestor, as it is closely related to many lichenized species of fungi.
Phlyctis is a genus of lichenized fungi in the order Gyalectales, and the type genus of the family Phlyctidaceae. Members of the genus are commonly called blemished lichens.
Catillaria is a genus of crustose lichens in the family Catillariaceae. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1852. It is the type genus of Catillariaceae, which was circumscribed by Austrian lichenologist Josef Hafellner in 1984.
Megalospora is a genus of lichen-forming fungi in the family Megalosporaceae.
Pseudosagedia is a genus of corticolous (bark-dwelling) lichens in the family Trichotheliaceae. It was first circumscribed as a section of genus Arthopyrenia by Swiss botanist Johannes Müller Argoviensis in 1862. Maurice Choisy elevated it to distinct generic status in 1949. Pseudosagedia was little used until, in 1995, Josef Hafellner and Klaus Kalb resurrected the genus to contain members of the Porina nitidula species group with the perithecial pigment called Pseudosagedia-violet and lacking setae.
