Lepraria incana
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Lepraria incana |
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| ( L. ) Oh. |
Lepraria incana is a common crusty lichen in Central Europefrom the Stereocaulaceae family thatgrows on tree bark.
description
The camp of Lepraria incana is consistently floury-grainy with a diffuse border. The color is white-gray to green-gray, often with a slight blue cast. The individual loosely connected granules correspond to soredia with a diameter of about 50 to 125 µm. Apothecia are not formed.
The lack of fruiting bodies is not due to an incompletely developed symbiosis between algae and fungal partners , as previously assumed, but can be interpreted as a secondary adaptation of more highly developed forms (as indicated by the presence of more complex chemical products in leprosy species).
distribution
Lepraria incana is very common in Central Europe, hardly sensitive to air pollution and is found especially on acidic tree bark (conifers) in rain-protected bark cracks near the base of the trunk, occasionally also on silicate rock. Their area extends from the boreal zone to the sub-Mediterranean area .
literature
- Volkmar Wirth: Lichen flora . E. Ulmer, Stuttgart 1980, p. 329/330, ISBN 3-8001-2452-1
- Volkmar Wirth, Ruprecht Düll : Color Atlas of Lichen and Moss. Ulmer, Stuttgart 2000, ISBN 3-8001-3517-5 , p. 171.
