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
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 by French lichenologist Maurice Choisy in 1929. Hannes Hertel emended the f ...
. 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 po ...
by Russian lichenologist
Alexander Elenkin
Alexander Alexandrovich Elenkin (1873–1942, russian: Еленкин, Александр Александрович) was a Russian lichenologist. He was born in Warsaw and took his degree in botany at the University of Warsaw, graduating in 1893 ...
in 1909, with ''
Placynthiella arenicola
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with '' Placynthiella arenicola'' designated as the type species.
Species
*'' Placynth ...
Placynthiella arenicola
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with '' Placynthiella arenicola'' designated as the type species.
Species
*'' Placynth ...
''
*''
Placynthiella borsodensis
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with '' Placynthiella arenicola'' designated as the type species.
Species
*'' Placynth ...
''
*''
Placynthiella dasaea
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with '' Placynthiella arenicola'' designated as the type species.
Species
*'' Placynth ...
''
*''
Placynthiella hurii
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with ''Placynthiella arenicola'' designated as the type species.
Species
*''Placynthie ...
''
*''
Placynthiella hyporhoda
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with ''Placynthiella arenicola'' designated as the type species.
Species
*''Placynthie ...
''
*''
Placynthiella icmalea
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with '' Placynthiella arenicola'' designated as the type species
In zoological nomenc ...
''
*''
Placynthiella knudsenii
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with ''Placynthiella arenicola'' designated as the type species.
Species
*''Placynthie ...
'' – North America
*''
Placynthiella oligotropha
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with ''Placynthiella arenicola'' designated as the type species.
Species
*''Placynthie ...
''
*''
Placynthiella uliginosa
''Placynthiella'' is a genus of lichenized fungi in the family Trapeliaceae. The genus was circumscribed by Russian lichenologist Alexander Elenkin in 1909, with ''Placynthiella arenicola'' designated as the type species.
Species
*''Placynthie ...