Pleurosticta acetabulum
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Pleurosticta acetabulum |
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| ( Neck. ) Elix & Lumbsch |
Pleurosticta acetabulum ( Basionym : Lichen acetabulum , other synonyms including: Parmelia acetabulum , Melanelia acetabulum ) is a leaf lichen that lives on the bark.
description
The rosette bearings of Pleurosticta acetabulum can reach up to 25 cm in diameter. The upper side of the thallus is gray-green to brownish-green when dry, and olive-green when wet. The underside is blackish and has a lighter stripe on the edge with scattered rhizines . Sorale or isidia are absent. Fruit bodies ( apothecia ), on the other hand, are common, reach up to 1 cm in diameter and are characterized by a brown disc with a light, notched edge.
Occurrence
The species is largely restricted to Europe and can be found on the bark of - preferably free-standing - deciduous trees.
Individual proof
literature
- Bruno P. Kremer, Hermann Muhle: lichens, mosses, ferns. Mosaik Verl., Munich 1991, ISBN 3-570-06652-5 , p. 32
- Volkmar Wirth: Lichen flora . E. Ulmer, Stuttgart 1980, p. 410, ISBN 3-8001-2452-1 , p. 375
