Erioderma pedicellatum is a medium-sized, foliose lichen in the family Pannariaceae, commonly called the boreal felt lichen. It grows on trees in damp boreal forests along the Atlantic coast in Canada, as well as in southcentral Alaska, the Kamchatka Peninsula, and Norway.
The Roccellaceae are a family of mostly lichen-forming fungi in the order Arthoniales, established by the French botanist François Fulgis Chevallier in 1826. Species in the family exhibit various growth forms, including crustose and fruticose (shrub-like) thalli, and diverse reproductive structures. Roccellaceae species typically have disc-like or slit-like fruiting bodies, often with distinct blackened margins. Molecular phylogenetics studies have revealed considerable genetic diversity and complex evolutionary histories within the family.
The Ramalinaceae are a family of lichen-forming fungi in the order Lecanorales. First proposed by Carl Adolph Agardh in 1821, the family now comprises 63 genera and about 750 species. Ramalinaceae lichens exhibit diverse growth forms, including crustose, fruticose, squamulose, leprose, and byssoid thalli, and form symbiotic relationships primarily with green algae of the genus Trebouxia. The family is characterised by pale-coloured thalli, apothecia that are typically pale but may darken with age, and ascospores that vary in shape and septation.
The Pertusariales are an order of fungi in the class Lecanoromycetes, comprising 8 families, 31 genera, and over 600 species, many of which form lichens. This diverse group is characterized by complex taxonomic history and ongoing phylogenetic revisions. Originally proposed by Maurice Choisy in 1949 and later formally published by the lichenologists David L. Hawksworth and Ove Eriksson in 1986, Pertusariales has undergone significant reclassification due to molecular phylogenetics studies. The order includes well-known genera such as Pertusaria and Ochrolechia, as well as families like Megasporaceae and Icmadophilaceae.
Verrucariaceae is a family of lichens and a few non-lichenised fungi in the order Verrucariales. The lichens have a wide variety of thallus forms, from crustose (crust-like) to foliose (bushy) and squamulose (scaly). Most of them grow on land, some in freshwater and a few in the sea. Many are free-living but there are some species that are parasites on other lichens, while one marine species always lives together with a leafy green alga.
Schadonia is a genus of lichen-forming fungi. Established by German lichenologist Gustav Wilhelm Körber in 1859, this genus of crustose lichens is characterised by its black, sessile apothecia, muriform ascospores, and growth on mosses, plant debris, and rocks in montane habitats. While traditionally placed in the family Ramalinaceae, recent studies have suggested its classification may be uncertain within the order Lecanorales, with some researchers proposing its placement in the Pilocarpaceae or the resurrection of the family Schadoniaceae. The genus currently comprises four recognised species.
Anaptychia is a genus of lichen-forming fungi in the family Physciaceae. Anaptychia species are foliose (leafy) to fruticose (bushy) lichens. They have brown, thin-walled spores with a single septum, and a prosoplechtenchymatous upper cortex.
Mazosia is a genus of lichen-forming fungi in the family Roccellaceae.
Bryonora is a genus of lichen-forming fungi in the family Lecanoraceae. These lichens typically grow on soil, mosses, plant debris, or rocks in arctic or alpine environments. The genus was circumscribed in 1983 by lichenologist Josef Poelt, with Bryonora castanea assigned as the type species.
Squamarina is a genus of lichens in the family Stereocaulaceae. They form patches of radiating lobes or overlapping scales, with a well-developed upper cortex and no lower cortex. They grow on calcareous soil and rocks. Squamarina lentigera can be used to make a yellow dye.
The Caliciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. Although the family has had its classification changed several times throughout its taxonomic history, the use of modern molecular phylogenetic methods have helped to establish its current placement in the order Caliciales. Caliciaceae contains 39 genera and about 670 species. The largest genus is Buellia, with around 300 species; there are more than a dozen genera that contain only a single species.
Josef Hafellner is an Austrian mycologist and lichenologist. He was awarded the Acharius Medal in 2016 for his lifetime contributions to lichenology. Before his retirement, he was a professor at the Karl-Franzens-Universität in Graz. Hafellner started developing an interest in lichens while he was a student at this institution, studying under Josef Poelt. He earned a master's degree in 1975 and a PhD in 1978, defending a doctoral thesis about the genus Karschia. In 2003, Hafellner received his habilitation. By this time, he had studied with French lichenologist André Bellemère (1927–2014) at Saint-Cloud, where he learned techniques of transmission electron microscopy and how their application in studying asci could be used in lichen systematics. His 1984 work Studien in Richtung einer natürlicheren Gliederung der Sammelfamilien Lecanoraceae und Lecideaceae has been described as "probably the single most influential publication in lichen systematics in the latter half of the 20th century".
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.
Sporastatia is a genus of crustose lichens in the family Sporastatiaceae. It has four species. Sporastatia lichens are long-lived species that grow on siliceous or weakly calcareous rocks in arctic and alpine locales.
Buellia dijiana is a species of terricolous (ground-dwelling), crustose lichen in the family Caliciaceae. It is found in Australia.
Buellia georgei is a species of lichen in the family Caliciaceae. Found in Australia, it was formally described as a new species in 2001 by lichenologists Ulrike Trinkaus, Helmut Mayrhofer, and John Elix. The type specimen was collected in Yanchep National Park ; here it was found growing on soft limestone. It has also been recorded from South Australia, New South Wales, and the Australian Capital Territory; preferred habitats are calcareous outcrops, on thin soil over limestone, or rarely on calcareous soil. The lichen produces some secondary compounds: arthothelin as a major metabolite, and minor amounts of 4,5-dichloronorlichexanthone and thiophanic acid. The specific epithet honours Western Australian botanist Alex George.
Lecanora vinetorum is a rare species of crustose lichen in the family Lecanoraceae. Found in Central Europe, it was formally described as a new species in 1968 by lichenologists Josef Poelt and Siegfried Huneck. The type specimen was collected from the San Michele Appiano region of Trentino-Alto Adige ; there it was found growing on vineyard frames. The species epithet vinetorum refers to its habitat.
Hafellia alisioae is a rare species of corticolous (bark-dwelling), crustose lichen in the family Caliciaceae. Found in the Canary Islands, it was formally described as a new species in 2003 by Javier Etayo and Bernhard Marbach. The species epithet alisioae is derived from alisios, the Spanish word for the moisture-laden Atlantic winds that blow from the northeast, bringing high humidity and rain to exposed coasts with biodiverse lichen growth. Mireia Giralt and Pieter P.G. van den Boom proposed to transfer the taxon to the genus Buellia in 2011.
Hafellia gomerana is a species of corticolous (bark-dwelling), crustose lichen in the family Caliciaceae. It is found in the Canary Islands. It has a creamy white-coloured thallus, and unique microscopic and chemical characteristics.
Perigrapha superveniens is a species of lichenicolous (lichen-dwelling) fungus of uncertain familial placement in the order Arthoniales. It is the type species of the genus Perigrapha. It uses members of the foliose lichen genus Parmelia as its host.
