Teloschistes chrysophthalmus

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Teloschistes chrysophthalmus
Teloschistes chrysophthalmus

Teloschistes chrysophthalmus

Systematics
Class : Lecanoromycetes
Subclass : Lecanoromycetidae
Order : Teloschistales
Family : Teloschistaceae
Genre : Teloschistes
Type : Teloschistes chrysophthalmus
Scientific name
Teloschistes chrysophthalmus
( L. ) Th.Fr.

Teloschistes chrysophthalmus is a species of lichen . The Central European occurrences of thespecies,sometimes also known as gold lichen or gold eye lichen because of their appearance, becameextinct at the end of the 19th century.

description

The species, which can hardly be confused, forms a gray-yellow or light to golden-orange colored, shrub-shaped bed with marginal fibrils. However, adhesive fibers are missing. The length of the slightly flattened sections is about 1.5 cm. The often developed fruit bodies ( apothecia ) have an orange-colored disc with characteristic eyelashes on the edge and a diameter of 2 to 7 mm.

The photobiont is a member of the green algae genus Trebouxia .

distribution

Teloschistes chrysophthalmus grows on branches of shrubs and deciduous trees, such as sloes, poplars or oaks, in locations rich in light. Their distribution area includes the warm summer of Western Europe and the Mediterranean area. The species, which is sensitive to fertilization and pesticides , used to be found on the British Isles and in southwest Germany (especially in orchards in the Upper Rhine region), but became extinct in Central Europe at the end of the 19th century. The last record on the British main island comes from 1998 ( Cornwall ). In 2007 a recovery on Guernsey was reported after around 140 years.

Individual evidence

  1. ↑ press release. La Société Guernesiaise ( Memento of August 7, 2008 in the Internet Archive )

literature

Web links

Commons : Teloschistes chrysophthalmus  - album with pictures, videos and audio files