The Lecanoraceae are a family of lichenized fungi in the order Lecanorales. Species of this family have a widespread distribution.
Diploschistes is a genus of lichen-forming fungi in the family Graphidaceae. Members of the genus are crustose lichens with a thick, cracked (areolate) body (thallus) with worldwide distribution. The fruiting part (apothecia) are immersed in the thick thallus so as to have the appearance of being small "craters". The widespread genus contains about 43 species.
Opegrapha is a genus of lichenized fungi in the family Opegraphaceae. Species include:
Stigmidium is a genus of lichenicolous (lichen-eating) fungi in the family Mycosphaerellaceae. The genus was circumscribed by Italian botanist Vittore Benedetto Antonio Trevisan de Saint-Léon in 1860, with Stigmidium schaereri assigned as the type species.
Catapyrenium is a genus of lichens in the family Verrucariaceae. The genus was circumscribed by German botanist Julius von Flotow in 1850.
Bagliettoa is a genus of lichen-forming fungi in the family Verrucariaceae. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1853. Bagliettoa species are endolithic, growing between the grains of solid rock.
Gyalecta is a genus of lichen-forming fungi in the family Gyalectaceae that contains 50 species. Gyalecta was circumscribed by lichenologist Erik Acharius in 1808.
Clauzadea is a genus of lichenized fungi in the family Lecideaceae. The genus contains four species found in Europe. Clauzadea was circumscribed in 1984 by lichenologists Josef Hafellner and André Bellemère.
Porpidia is a genus of crustose lichens in the family Lecideaceae.
Rhizocarpon is a genus of crustose, saxicolous, lecideoid lichens in the family Rhizocarpaceae. The genus is common in arctic-alpine environments, but also occurs throughout temperate, subtropical, and even tropical regions. They are commonly known as map lichens because of the prothallus forming border-like bands between colonies in some species, like the common map lichen.
Hypocenomyce is a genus of lichen-forming fungi in the family Ophioparmaceae. Species in the genus grow on bark and on wood, especially on burned tree stumps and trunks in coniferous forest. Hypocenomyce lichens are widely distributed in the northern hemisphere.
Arthopyrenia is a genus of fungi in the family Trypetheliaceae. It was formerly classified in the eponymic family Arthopyreniaceae, but molecular phylogenetics studies showed that the type species, Arthopyrenia cerasi, was a member of the Trypetheliaceae.
Leptorhaphis is a genus of lichens in the family Naetrocymbaceae. Members of the genus Leptorhaphis are commonly called birchbark dot lichens.
Strigula is a genus of lichen-forming fungi in the family Strigulaceae. The genus was circumscribed in 1823 by English mycologist Elias Magnus Fries.
Schaereria is a genus of lichen-forming fungi. It is the sole genus in the family Schaereriaceae, which itself is the only family in the Schaereriales, an order in the subclass Ostropomycetidae of the class Lecanoromycetes. Most Schaereria species are crustose lichens that live on rocks. Schaereria was first proposed by Gustav Wilhelm Körber in 1855 and was later taken up by other lichenologists despite periods of disuse.
Polycoccum is a genus of lichenicolous fungi in the family Polycoccaceae. It has about 60 species.
Strangospora is a genus of lichen-forming fungi. It is the only genus in the family Strangosporaceae, which itself is of uncertain taxonomic placement in the Ascomycota. It contains 10 species.
Schaereria fuscocinerea is a species of saxicolous (rock-dwelling), crustose lichen in the family Schaereriaceae. It was first formally described in 1852 by Finnish lichenologist William Nylander, as Lecidea fusco-cinerea. Georges Clauzade and Claude Roux transferred it to the genus Schaereria in 1985. The species has a cosmopolitan distribution and is found in both northern and southern hemispheres, where it grows on hard siliceous rocks, often in arctic and mountainous areas. Similar species include Lambiella gyrizans and L. mullensis, which can be distinguished from Schaereria fuscocinerea by microscopic and chemical characteristics.
