Zoned pore lichen
| Zoned pore lichen | ||||||||||||
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Pertusaria albescens |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Pertusaria albescens | ||||||||||||
| ( Huds. ) M. Choisy & Werner |
The zoned pore lichen ( Pertusaria albescens , synonym : Pertusaria albescens var. Albescens ) is a crusty lichen from the family of Pertusariaceae that is common in Central Europe and usually grows on tree bark.
description
Pertusaria albescens is a lichen planus, i. H. their thallus lies close to the base. The camp is gray to greenish gray in color. It can be smooth, uneven or faintly cracked and is sometimes limited by a so-called pre-storage, which appears zoned by light and dark stripes. The rounded, whitish sorals are sharply demarcated and concave to slightly arched (in the similar Pertusaria amara they are usually more arched). Apothecia are very rare.
distribution
The species is found all over Europe, with the exception of the northern boreal zone . It colonizes the bark of deciduous trees (there also over mosses), especially of street and fruit trees.
literature
- Volkmar Wirth: Lichen flora . E. Ulmer, Stuttgart 1980, p. 397, ISBN 3-8001-2452-1
- Volkmar Wirth, Ruprecht Düll : Color Atlas of Lichen and Moss. Ulmer, Stuttgart 2000, ISBN 3-8001-3517-5 , p. 167.
Web links
- Entry Index Fungorum ( Memento from March 13, 2012 in the web archive archive.today )
- Picture and short description (U. Kirschbaum) ( Memento from July 4, 2007 in the Internet Archive )
- Picture and short description (lichenology.info)