lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi in the family Lecanoraceae. 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 ...
in 2009 by Dutch lichenologist
André Aptroot
André Aptroot (Heemskerk, 1961) is a Dutch mycologist and lichenologist.
In 1993 he did his PhD at the University of Utrecht under the supervision of Robbert Gradstein (nl). His dissertation was titled "Systematic studies on pyrenocarpous li ...
type
Type may refer to:
Science and technology Computing
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* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* Ty ...
, and at that time, only species. Four newly described species were added to the genus in a 2009 publication, a species formerly in ''
Pyrrhospora
''Pyrrhospora'' is a genus of lichen-forming fungi in the family Lecanoraceae. The genus was circumscribed by German lichenologist Gustav Wilhelm Körber in 1855, with '' Pyrrhospora quernea'' assigned as the type species.
Species
*'' Pyrrhospo ...
'' was transferred to the genus in 2017, and a new species from Australia added in 2018. ''Traponora'' lichens are predominantly from Australasia, with all species but one known to occur in Papua New Guinea.
Description
''Traponora'' species are small, inconspicuous lichens that grow on trees, and are often overlooked because of their diminutive size—with a thallus typically less than . ''Traponora'' produces small, lecideoid apothecia, meaning they lack algae and an amphithecium, and are typically black with a carbonaceous exciple (rim) and blackish disc. The apothecia often have a ragged margin, like those of genus ''
Trapelia
''Trapelia'' is a genus of lichenized fungi in the family Trapeliaceae
Trapeliaceae is a family of lichens in the order Baeomycetales. The family contains 12 genera and about 125 species.
Taxonomy
Trapeliaceae was originally circumscribed ...
'', for which the genus are named. The
asci ASCI or Asci may refer to:
* Advertising Standards Council of India
* Asci, the plural of ascus, in fungal anatomy
* Accelerated Strategic Computing Initiative
* American Society for Clinical Investigation
* Argus Sour Crude Index
* Association of ...
are of the '' Lecanora''-type, and the ascospores are simple and thick walled. Although the genus has been tentatively assigned to the family Lecanoraceae owing to similarities in ascus structure, its true phylogenetic affiliations are not yet known with certainty.
Traponora flavothallina
''Traponora'' is a genus of lichen-forming fungi in the family Lecanoraceae. The genus was circumscribed in 2009 by Dutch lichenologist André Aptroot, with the Papua New Guinean '' Traponora asterella'' assigned as the type, and at that time, ...
'' – Australia
*''
Traponora fusca
''Traponora'' is a genus of lichen-forming fungi in the family Lecanoraceae. The genus was circumscribed in 2009 by Dutch lichenologist André Aptroot, with the Papua New Guinean '' Traponora asterella'' assigned as the type, and at that time, ...