''Pseudochapsa'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of lichen-forming

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

in the family

Graphidaceae The Graphidaceae are a family of lichens in the order Ostropales. Distribution and ecology The vast majority of Graphidaceae species are restricted to the tropics. Most Graphidaceae species are epiphytic (i.e. they grow only on plants). Gene ...

. It has 19 species. It 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 po ...

in 2012 by Sittiporn Parnmen,

Robert Lücking Robert Lücking (born 1964) is a German lichenologist. He is a leading expert on foliicolous lichens–lichens that live on leaves. Life and career Born in Ulm in 1964, Lücking earned both his master's (1990) and PhD degree (1994) at the Univer ...

, and

Helge Thorsten Lumbsch Helge Thorsten Lumbsch (born 1964) is a German-born lichenologist living in the United States. His research interests include the phylogeny, taxonomy, and phylogeography of lichen-forming fungi; lichen diversity; lichen chemistry and chemota ...

, with '' Pseudochapsa dilatata'' as the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen( ...

. ''Pseudochapsa'' differs from '' Chapsa'' (the genus from which it was segregated) it that its excipulum (the rim of tissue around the

apothecia An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are mo ...

) is typically brown. Additionally, its

ascospore An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera o ...

s are mostly discoseptate and

amyloid Amyloids are aggregates of proteins characterised by a fibrillar morphology of 7–13 nm in diameter, a beta sheet (β-sheet) secondary structure (known as cross-β) and ability to be stained by particular dyes, such as Congo red. In the hu ...

. The generic name combines the Greek ''pseudo'' ("false") with the genus name ''Chapsa''.

Species

*'' Pseudochapsa albomaculata'' *'' Pseudochapsa amylospora'' *'' Pseudochapsa aptrootiana'' *''

Pseudochapsa crispata ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *'' Pseudochapsa dilatata'' *'' Pseudochapsa esslingeri'' *'' Pseudochapsa isidiifera'' *'' Pseudochapsa kalbii'' *''

Pseudochapsa lueckingii ''Pseudochapsa lueckingii'' is a species of corticolous (bark-dwelling), crustose lichen in the family Graphidaceae. It is known only from a single collection in São Paulo, Brazil. Taxonomy The lichen was first formally described as a new s ...

'' *''

Pseudochapsa phlyctidea ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa phlyctidioides ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa pseudoexanthismocarpa ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa pseudoschizostoma ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type species ...

'' *''

Pseudochapsa rhizophorae ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa rivas-platae ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa sipmanii ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa subdactylifera ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

'' *''

Pseudochapsa subpatens ''Pseudochapsa'' is a genus of lichen-forming fungi in the family Graphidaceae. It has 19 species. It was circumscribed in 2012 by Sittiporn Parnmen, Robert Lücking, and Helge Thorsten Lumbsch, with '' Pseudochapsa dilatata'' as the type specie ...

References

Graphidaceae Graphidales genera Lichen genera Taxa described in 2012 Taxa named by Robert Lücking Taxa named by Helge Thorsten Lumbsch {{Lecanoromycetes-stub