''Lecanora'' is a genus of lichen commonly called rim lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, 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
An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are mo ...
) with rims that have photosynthetic tissue similar to that of the nonfruiting part of the lichen body (
thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or " twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms ...
). 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 ...
thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or " twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms ...
photobiont
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.ascospores and crystals in the amphitecium.
It is in the family Lecanoraceae in the suborder Lecanorineae.
Species
:
*''
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
*''
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 ...
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
*''
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
*'' Lecanora helicopis'', (Wahlenb. ex Ach.) Ach. 1814
*''
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 that usually grows in rosettes radiating from a center ( placodioid) filled with disc-like yellowish-tan fruiting bodies ( apothecia).Fi ...
'', (Schreb.) Rabenh. (1845)
*''
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
*''
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
*''
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.
*''
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
*''
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