| Lecanora | |
|---|---|
| |
| Lecanora muralis | |
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Lecanoraceae |
| Genus: |
Lecanora Ach. (1809) |
| Type species | |
|
Lecanora subfusca | |
| Diversity | |
| about 500 species | |
Lecanora is a genus of lichen commonly called rim lichens. [1]: 279 [2] 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). [1] Other lichens with apothecia having margins made of thallus-like tissue are called lecanorine. [1]
It is in the family Lecanoraceae in the suborder Lecanorineae. [3] [4]
Description
Lecanora has a crustose thallus, trebouxioid photobiont, colourless ascospores and crystals in the amphothecium. [5]: 680
Swiss lichenologist Rosmarie Honegger used electron microscopy in the late 1970s to investigate ascus structure in several major groups of lichen-forming fungi. She defined the Lecanora-type ascus as one characterized by several distinctive features: (1) a non- amyloid, clear ascus wall that is encased in an amyloid outer layer often described as a fuzzy coat; (2) an amyloid dome filled with granular inclusions set within a clear matrix; (3) a clear central layer inside the dome; and (4) a method of opening, or dehiscence, that is rostrate (resembling the shape of a bird's beak – the ascus has a pointed or protruding tip from which the spores are released). [6]
Species
- Lecanora campestris (Schaer.) Hue 1888
- Lecanora conizaeoides Nyl. ex Cromb. 1885 [7]
- Lecanora gangaleoides, Nyl. 1872
- Lecanora grantii, H. Magn. 1932
- Lecanora helicopis, (Wahlenb. ex Ach.) Ach. 1814
- Lecanora mellea, W.A.Weber (1975)
- Lecanora muralis, (Schreb.) Rabenh. (1845)
- Lecanora poliophaea, (Wahlenb.) Ach. 1810
- Lecanora rupicola, (L.) Zahlbr. 1928
- Lecanora straminea, Wahlenb. ex Ach.
- Lecanora strobilina, (Spreng.) Kieff. 1895
- Lecanora usneicola, Etayo, 2006
Gallery
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Lecanora cf. muralis lichen on the banks of the Bega canal in Timișoara -
Lecanora from coastal California
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References
- ^ a b c Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
- ^ USDA Natural Resources Conservation Service Name Search
- ^ Rim Lichen (Squamarina), Encyclopedia of Life
- ^ C.J. Alexopolous, Charles W. Mims, M. Blackwell, Introductory Mycology, 4th ed. (John Wiley and Sons, Hoboken NJ, 2004) ISBN 0-471-52229-5
- ^ FLORA OF NEW ZEALAND: Lichens including lichen-forming and licheniculous fungi, Revised second edition, Volume one, D. J. Galloway, Manaaki Whenua Press, Landcare Research 2007, ISBN 978-0-478-09376-6
- ^ Honegger, R. (1978). "The ascus apex in lichenized fungi I. The Lecanora-, Peltigera- and Teloschistes-types" (PDF). The Lichenologist. 10 (1): 47–67. doi: 10.1017/s0024282978000079. S2CID 84629945.
- ^ Mycobank: Lecanora conizaeoides
| Authority control databases: National |
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