Thelenellaceae is a
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
of
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
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 ...]
. It is the sole family in the
monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...
order Thelenellales, and contains three genera and about 50 species.
Taxonomy
The family was initially proposed by Ove Erik Eriksson, and later formally published by Helmut Mayrhofer in 1987.
The order Thelenellales, containing only family Thelenellaceae, was proposed by
H. Thorsten Lumbsch and Steven Leavitt in 2018.
However, the taxon was not
validly published because "an identifier issued by a recognized repository was not cited in the protologue", contrary to rules of
botanical nomenclature
Botanical nomenclature is the formal, scientific naming of plants. It is related to, but distinct from Alpha taxonomy, taxonomy. Plant taxonomy is concerned with grouping and classifying plants; botanical nomenclature then provides names for the ...
.
This nomenclatural oversight was rectified later the same year in a separate publication.
Description
Lichens in the family are typically
crustose
Crustose is a habit of some types of algae and lichens in which the organism grows tightly appressed to a substrate, forming a biological layer. ''Crustose'' adheres very closely to the substrates at all points. ''Crustose'' is found on rocks and ...
or
areolate
Lichens are composite organisms made up of multiple species: a fungal partner, one or more photosynthetic partners, and sometimes a basidiomycete yeast. They are regularly grouped by their external appearance – a characteristic known as their ...
, and grow
on bark or
on rocks. They have
ascomata in the form of thick-walled, pale to dark brown
perithecia. Collectively, the species in the family have a widespread distribution.
Genera
This is a list of the genera in the Thelenellaceae, based on a 2021 review and summary of fungal
classification Classification is a process related to categorization, the process in which ideas and objects are recognized, differentiated and understood.
Classification is the grouping of related facts into classes.
It may also refer to:
Business, organizat ...
by Wijayawardene and colleagues.
Following the genus name is the
taxonomic authority (those who first
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 ...
the genus; standardized
author abbreviations are used), year of publication, and the number of species:
*''
Aspidothelium''
– 17 spp.
*''
Chromatochlamys''
– 3 spp.
*''
Thelenella
''Thelenella'' is a genus of lichen-forming fungi in the family Thelenellaceae. It has 30 species. The genus was circumscribed by Finnish lichenologist William Nylander in 1855, with '' Thelenella modesta'' assigned as the type species
In zoo ...
''
– 30 spp.
References
{{Taxonbar, from=Q10696037
Lecanoromycetes
Lecanoromycetes families
Lichen families
Taxa described in 2018
Taxa named by Helge Thorsten Lumbsch