The Pertusariaceae are a family of lichen-forming fungi in the order Pertusariales.
Ochrolechia is a genus of crustose lichens in the family Ochrolechiaceae.
Geltingia is a fungal genus in the family Helicogoniaceae. It is monotypic, containing the single lichenicolous species Geltingia associata. The genus was circumscribed in 1990 by mycologists Vagn Alstrup and David Leslie Hawksworth. The genus name honours Danish scientist Paul Gelting.
Merismatium is a genus of lichenicolous (lichen-dwelling) fungi of uncertain familial placement in the order Verrucariales. The genus was circumscribed in 1898 by Friedrich Wilhelm Zopf.
William Anderson Weymouth was an amateur botanist. He worked as an insurance assessor with the National Mutual Insurance Company. In 1887 he began collecting mosses and lichens, sending them to several European bryologists including Antonio Jatta in Italy, and Viktor Brotherus in Finland. Jatta named a species of lichen in honour of Weymouth called Ochrolechia weymouthii, and Brotherus named the moss genus Weymouthia. Weymouth published several papers on mosses from Tasmania.
Bernt Arne Lynge was a Norwegian botanist. He specialized in lichen, in particular species from the Arctic and Antarctica.
A lichenicolous fungus is a parasitic fungus that only lives on lichen as the host. A lichenicolous fungus is not the same as the fungus that is the component of the lichen, which is known as a lichenized fungus. They are most commonly specific to a given fungus as the host, but they also include a wide range of pathogens, saprotrophs, and commensals.
The Northwest Russian-Novaya Zemlya tundra ecoregion is an ecoregion on the north coast of European Russia. It covers the southern shores of the White Sea, the coast of the Barents Sea east to the Yamal Peninsula, the southern half of Novaya Zemlya, and numerous inlets and islands. The low tundra wetlands are important breeding grounds for waterfowl. The ecoregion is in the Palearctic realm, and the tundra biome. It has an area of 284,122 square kilometres (109,700 sq mi).
Stereocaulon paschale is a species of lichen belonging to the family Stereocaulaceae.
Lichenoconium pyxidatae is a species of lichenicolous fungus belonging to the class Dothideomycetes. It has a Holarctic distribution being found in Alaska and various parts of Russia, including Siberia, Franz Josef Land, Novaya Zemlya and Wrangel Island.
Ochrolechia africana, commonly known as the frosty saucer lichen, is a species of crustose and corticolous (bark-dwelling) lichen in the family Ochrolechiaceae. It is a widely distributed species, found in tropical and subtropical areas of southern Africa, Asia, Australia, North America, and South America. The lichen is characterized by the presence of a white "frosty" or powdery apothecia.
Opegrapha verseghyklarae is a little-known species of lichenicolous (lichen-eating) fungus in the family Opegraphaceae. It is found in the Russian Far East, where it grows on the thalli and apothecia of the crustose lichen Ochrolechia pallescens.
Klára Anna Verseghy was a Hungarian lichenologist. She was the curator of the lichen collection of the Hungarian Natural History Museum in Budapest from 1958 to 1985.
Sphaerellothecium araneosum is a species of lichenicolous fungus in the family Phyllachoraceae.
Phacopsis oroarcticae is a species of lichenicolous (lichen-dwelling) fungus in the family Parmeliaceae. It was formally described as a new species in 2010 by Russian mycologist Mikhail P. Zhurbenko. The type specimen was collected from a stony polar desert in the Severnaya Zemlya Archipelago in Central Siberia, where it was found growing on the lobes of the foliose lichen Brodoa oroarctica; the species epithet refers to its host. Infection by the fungus results in bleached, swollen, and sometimes contorted lobes. It is the first Phacopsis species known to have Brodoa as a host.
Skyttea ochrolechiae is a species of lichenicolous (lichen-dwelling) fungus in the family Cordieritidaceae. Found in Japan, it was formally described as a new species in 2015 by Russian mycologist Mikhail P. Zhurbenko. The fungus grows on the epiphytic lichen Ochrolechia trochophora, but does not visibly damage its host. It is somewhat similar to Skyttea fusispora, but unlike that fungus, it has an orange-brown exciple that stains purple with the K test, and has shorter ascospores, typically measuring 14.7‒18.9 by 3.1‒3.9 μm.
Verseghya is a genus of lichen-forming fungi in the family Pertusariaceae. It has two species. The genus was circumscribed in 2016 by lichenologists Sergey Kondratyuk, Laszlo Lőkös, and Jae-Seoun Hur, with Verseghya klarae assigned as the type species. This crustose species is found in South Korea, where it grows on the bark of a wide variety of both deciduous and coniferous trees. Molecular phylogenetic analysis showed that Verseghya klarae occupied a separate phylogenetic branch in the Pertusariaceae, situated between the genera Ochrolechia and Pertusaria and the Lecanora subcarnea species complex. Verseghya thysanophora was transferred to the genus in 2019. It is widely distributed in the Northern Hemisphere.
Oxneriaria is a genus of lichen-forming fungi in the family Megasporaceae. It has nine species, all of which are saxicolous (rock-dwelling), crustose lichens. The genus was circumscribed in 2017 by Sergey Kondratyuk and László Lőkös to contain species formerly in the Aspicilia mashiginensis species group. This species, now the type of the genus, was first described scientifically by Alexander Zahlbruckner as Lecanora mashiginensis. The genus name honours Ukrainian lichenologist Alfred Oxner, who, according to the authors, "provided important contribution [sic] to taxonomy of aspicilioid lichens and to biodiversity of polar lichens".
Erichansenia epithallina is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. It is also a lichenicolous lichen species, meaning that it grows on other lichens. Many host genera have been recorded. It occurs in Europe and North America, including Arctic regions.
