Phaeophyscia orbicularis
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Phaeophyscia orbicularis |
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| ( Neck. ) Moberg |
Phaeophyscia orbicularis is a species of leaf lichen that isvery common in Central Europeand colonizes tree bark and rocks.
description
The color of the rosette or irregularly shaped thallus is variable, light to dark gray or gray-brown, clearly greenish when moist. On the surface there are often sorals that can become almost heady at the ends of the lobes. Their color varies from grayish-white to blackish, rarely yellowish. Occasionally apothecia with a narrow rim and a dark disc are also formed.
distribution
Phaeophyscia orbicularis is one of the most common leaf lichens in Central Europe and is very insensitive to air pollutants and eutrophication. It is widespread in almost all of Europe on the bark of deciduous trees (regularly on poplars, for example ) and on calcareous rock, including concrete .
literature
- Volkmar Wirth: Lichen flora . E. Ulmer, Stuttgart 1980, pp. 414/415, ISBN 3-8001-2452-1
- Volkmar Wirth: The lichens of Baden-Württemberg . E. Ulmer, Stuttgart 1987, p. 361, ISBN 3-8001-3305-9 .
Web links
- Entry Index Fungorum
- Pictures and short description (A. Silverside)
- Pictures and brief description by Ulrich Kirschbaum ( Memento from January 6, 2013 in the web archive archive.today )
- Pictures (sharnoffphotos.com)