''Parmelinella'' is a genus 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.[Parmeliaceae
The Parmeliaceae is a large and diverse family of Lecanoromycetes. With over 2700 species in 71 genera, it is the largest family of lichen-forming fungi. The most speciose genera in the family are the well-known groups: '' Xanthoparmelia'' ( 822 ...]
.
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 1987 by
John Elix and
Mason Hale
Mason Ellsworth Hale, Jr. (September 23, 1929 – April 23, 1990) was one of the most prolific lichenologists of the 20th century. Many of his scholarly articles focused on the taxonomy of the family Parmeliaceae. Hale was one of the first liche ...
as a segregate of ''
Parmelina'', from which it differs in having larger
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 or s ...
s and containing
salazinic acid
Salazinic acid is a depsidone with a lactone ring. It is found in some lichens, and is especially prevalent in ''Parmotrema'' and ''Bulbothrix'', where its presence or absence is often used to help classify species in those genera.
History
I ...
.
Although the genus had been assumed to be well-defined
morphologically, a 2021
molecular phylogenetic
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
study suggests that the generic delimitations need to be revised.
Species
*''
Parmelinella afrocetrata
''Parmelinella'' is a genus of lichen belonging to the family Parmeliaceae. The genus was circumscription (taxonomy), circumscribed in 1987 by John Alan Elix, John Elix and Mason Hale as a segregate of ''Parmelina'', from which it differs in hav ...
''
*''
Parmelinella chozoubae
''Parmelinella'' is a genus of lichen belonging to the family Parmeliaceae. The genus was circumscribed in 1987 by John Elix and Mason Hale as a segregate of '' Parmelina'', from which it differs in having larger ascospores and containing salaz ...
'' – Asia
*''
Parmelinella cinerascens''
– South America
*''
Parmelinella inexplicabilis''
*''
Parmelinella manipurensis''
*''
Parmelinella mutata''
– South America
*''
Parmelinella nimandairana''
– Africa; Asia
*''
Parmelinella salacinifera''
– North America; Central America; South America; Caribbean islands; Thailand
*''
Parmelinella schimperiana
''Parmelinella schimperiana'' is a species of foliose lichen in the family Parmeliaceae. It is found in Kenya, Cameroon, and South India, where it typically grows on bark, but less frequently on rock.
Taxonomy
The lichen was described as a ne ...
''
– Kenya
*''
Parmelinella simplicior
''Parmelinella'' is a genus of lichen belonging to the family Parmeliaceae. The genus was circumscribed in 1987 by John Elix and Mason Hale as a segregate of '' Parmelina'', from which it differs in having larger ascospores and containing salaz ...
'' – Africa; Asia
*''
Parmelinella versiformis
''Parmelinella'' is a genus of lichen belonging to the family Parmeliaceae. The genus was circumscribed in 1987 by John Elix and Mason Hale as a segregate of '' Parmelina'', from which it differs in having larger ascospores and containing salaz ...
'' – South America
*''
Parmelinella wallichiana'' – Africa; Asia; Australia; South America
References
Parmeliaceae
Lecanorales genera
Lichen genera
Taxa named by Mason Hale
Taxa named by John Alan Elix
Taxa described in 1987
{{Parmeliaceae-stub