lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.USDA Natural Resources Conservation Service Name Search /ref> Lichens in the genus '' Squamarina'' are also called rim lichens. Members of the genus have roughly circular fruiting discs ( apothecia) with rims that have photosynthetic tissue similar to that of the nonfruiting part of the lichen body ( thallus). Other lichens with apothecia having margins made of thallus-like tissue are called
lecanorine
A lichen has lecanorine fruiting body parts if they are shaped like a plate with a ring around them, and that ring is made of tissue similar to the main non-fruiting body part of the lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale ...
ascospores
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 ...
Lecanora campestris
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'' (Schaer.) Hue 1888
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Lecanora conizaeoides
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
Lecanora gangaleoides
''Lecanora gangaleoides'' is a species of crustose lichen in the family Lecanoraceae. It was described as new to science by William Nylander
William Andrew Michael Junior Nylander Altelius (born 1 May 1996) is a Canadian-born Swedish profe ...
'', Nyl. 1872
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Lecanora grantii
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'', H. Magn. 1932
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Lecanora helicopis
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'', (Wahlenb. ex Ach.) Ach. 1814
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Lecanora mellea
''Lecanora mellea'' is a species of crustose lichen in the family Lecanoraceae
The Lecanoraceae are a family of lichenized fungi in the order Lecanorales. Species of this family have a widespread distribution.
Taxonomy
Lecanoraceae was circu ...
'', W.A.Weber (1975)
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Lecanora muralis
''Lecanora muralis'' ''(Protoparmeliopsis muralis)'' is a waxy looking, pale yellowish green crustose lichen, crustose lichen that usually grows in rosette (botany), rosettes radiating from a center (placoidiod, placodioid) filled with disc-like ...
'', (Schreb.) Rabenh. (1845)
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Lecanora poliophaea
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'', (Wahlenb.) Ach. 1810
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Lecanora rupicola
''Lecanora rupicola'' is a species of crustose lichen in the family Lecanoraceae. It is a known host species to the lichenicolous fungus
A lichenicolous fungus is a parasitic fungus that only lives on lichen as the host. A lichenicolous fungus ...
'', (L.) Zahlbr. 1928
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Lecanora straminea
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'', Wahlenb. ex Ach.
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Lecanora strobilina
''Lecanora strobilina'', also known as the mealy rim lichen, is a species of crustose lichen in the family Lecanoraceae. It was originally described as ''Parmelia strobilina'' by German botanist Kurt Polycarp Joachim Sprengel in 1827. It is dist ...
'', (Spreng.) Kieff. 1895
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Lecanora usneicola
''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Lichens in the genus ''Squamarina'' are also called rim lichens. Members of the genus have roughly ci ...
'', Etayo, 2006
Gallery
Image:Lecanora_strobilina_(EU).jpg, ''
Lecanora strobilina
''Lecanora strobilina'', also known as the mealy rim lichen, is a species of crustose lichen in the family Lecanoraceae. It was originally described as ''Parmelia strobilina'' by German botanist Kurt Polycarp Joachim Sprengel in 1827. It is dist ...
''
Image:Lichen_on_the_riverside.jpg, ''Lecanora'' cf. ''muralis'' lichen on the banks of the Bega canal in Timișoara
Image:Lecanora.Alan.JPG, ''Lecanora'' from coastal California