The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family has a cosmopolitan distribution, although its members occur predominantly in temperate regions. Most members are lichens that either live on rock or on bark, but about 40 species are lichenicolous – meaning they are non-lichenised fungi that live on other lichens. Many members of the Teloschistaceae are readily identifiable by their vibrant orange to yellow hue, a result of their frequent anthraquinone content. The presence of these anthraquinone pigments, which confer protection from ultraviolet light, enabled this group to expand from shaded forest habitats to harsher environmental conditions of sunny and arid ecosystems during the Late Cretaceous.
Xanthomendoza is a genus of small, bright orange foliose lichens with lecanorine apothecia. It is in the family Teloschistaceae. Members of the genus are commonly called sunburst lichens or orange lichens because of their bright orange color.
Gyalolechia is a genus of lichen-forming fungi belonging to the family Teloschistaceae. It contains 18 species of crustose lichens.
Calogaya is a genus of lichen-forming fungi belonging to the family Teloschistaceae. It has 19 species. The genus was circumscribed in 2013 by Ulf Arup, Ulrik Søchting, and Patrik Frödén. The generic name Calogaya honours Dr. Ester Gaya, a Spanish botanist from the University of Barcelona.
Flavoplaca is a genus of crust-like or scaly lichens in the family Teloschistaceae. It has 28 species with a mostly Northern Hemisphere distribution.
Xanthocarpia is a genus of mostly crustose lichens in the family Teloschistaceae. It has 12 species with a largely Northern Hemisphere distribution.
Rufoplaca is a genus of lichen-forming fungi in the family Teloschistaceae. The genus was circumscribed in 2013 by Ulf Arup, Ulrik Søchting, and Patrik Frödén, with Rufoplaca subpallida assigned as the type species.
Cerothallia is a genus of crustose lichens in the family Teloschistaceae. It has four species, all of which occur in the Southern Hemisphere. The genus was circumscribed in 2013 by Ulf Arup, Patrik Frödén, and Ulrik Søchting, with Cerothallia luteoalba assigned as the type species. The type is more widely distributed, as it is also found in Europe and North America. The generic name Cerothallia means "with waxy thallus".
Sirenophila is a genus of crustose lichens in the subfamily Teloschistoideae of the family Teloschistaceae. It has four species with an Australasian distribution.
Huneckia is a genus of crustose lichens in the subfamily Caloplacoideae of the family Teloschistaceae. It has four species.
Wetmoreana is a genus of lichen-forming fungi in the family Teloschistaceae. It comprises 15 formally described species, one subspecies, and three undescribed species of crustose or squamulose that are predominantly saxicolous (rock-dwelling). The genus is characterized by its distinct lobes, orange zeorine apothecia when present, and the frequent occurrence of asexual propagules such as schizidia, isidia, or soredia. A key diagnostic feature is the presence of calcium oxalate crystals in the thallus medulla of many species.
Niorma is a genus of lichen-forming fungi in the family Teloschistaceae. It has six fruticose species, with N. derelicta assigned as the type species. The genus was originally proposed by Italian lichenologist Abramo Bartolommeo Massalongo in 1861, but this and several other genera he proposed were largely ignored by later contemporaries. As part of a molecular phylogenetics-led restructuring of the teloschistoid clade of the subfamily Xanthorioideae in the Teloschistaceae, Sergey Kondratyuk and colleagues resurrected the genus for use about 150 years later. Genus Niorma comprises what was previously known as a species complex centred around the taxon previously known as Teloschistes hypoglaucus.
Rusavskia is a genus of lichen-forming fungi in the family Teloschistaceae. It has 12 species. It is a member of the subfamily Xanthorioideae. The thallus of Rusavskia is characterized by its foliose (leaf-like) structure with distinct and typically narrow lobes that curve outwards.
Gondwania is a genus of lichen-forming fungi in the subfamily Xanthorioideae of the family Teloschistaceae. It has five species.
Marchantiana is a genus of lichen-forming fungi in the family Teloschistaceae. It contains seven species of corticolous (bark-dwelling), crustose lichens that occur in the Southern Hemisphere.
Orientophila is a genus of lichen-forming fungi in the family Teloschistaceae. It has 15 species of mostly saxicolous (rock-dwelling), crustose lichens. All Orientophila species occur in Northeast Asia including China, Japan, South Korea, and the Russian Far East.
Oxneriopsis is a genus of lichen-forming fungi in the family Teloschistaceae. It has four species of corticolous (bark-dwelling), crustose lichens.
Fominiella is a genus of lichen-forming fungi in the family Teloschistaceae. It contains two species with a thin, film like and inconspicuous thallus.
Elenkiniana is a genus of lichen-forming fungi in the family Teloschistaceae. It has three species, all of which occur in Eurasia.
