''Norrlinia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of two species of

fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...

in the family

Verrucariaceae The Verrucariaceae are a family of mostly lichenised fungi in the order Verrucariales. The lichen-forming species, which comprise the vast majority of the family, have a wide variety of thallus forms, and include crustose (crust-like), foliose ( ...

. The genus was

circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ...

Ferdinand Theissen Ferdinand Theissen (27 July 1877 in Krefeld – 5 September 1919) was a German-Austrian Jesuit priest and mycologist. He studied theology at the seminary in Feldkirch, then from 1902 to 1908 was stationed in São Leopoldo, Brazil. Following h ...

and

Hans Sydow Hans Sydow (29 January 1879 – 6 June 1946) was a German mycologist and the son of mycologist and lichenologist, Paul Sydow (1851–1925). Career Hans Sydow worked at the Dresdner Bank in Berlin between 1904 and 1937 rising to divisional mana ...

in 1918. The genus name honours the Finnish botanist

Johan Petter Norrlin Johan Petter Norrlin (6 September 1842 in Hollola – 7 January 1917 in Helsinki) was a Finnish botanist and a professor of botany at the University of Helsinki from 1879 to 1903. He was a pioneer of plant geography in Finland, and is also well ...

. Both species are lichenicolous, meaning they

parasitise Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has ...

lichens. The

host A host is a person responsible for guests at an event or for providing hospitality during it. Host may also refer to: Places * Host, Pennsylvania, a village in Berks County People *Jim Host (born 1937), American businessman * Michel Host ...

of both fungi is the foliose genus ''

Peltigera ''Peltigera'' is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. Commonly known as the dog or pelt lichens, species of ''Peltigera'' are often terricolous (growing on soil), but can also occur on moss, trees, ...

''.

Species

* '' Norrlinia medoborensis'' * '' Norrlinia peltigericola'' The

taxon In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...

once known as ''Norrlinia trypetheliza'' is now ''

Cercidospora trypetheliza ''Cercidospora'' is a genus of fungi in the class Dothideomycetes. The relationship of this taxon to other taxa within the class is unknown ('' incertae sedis''). The genus was first described by Gustav Wilhelm Körber in 1865; it is synonymous ...

''.

References

Verrucariales Eurotiomycetes genera Taxa described in 1918 Taxa named by Hans Sydow Taxa named by Ferdinand Theissen Lichenicolous fungi {{Eurotiomycetes-stub