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Star Rosette Lichen

Physcia sp.

Description:

This foliose lichen appears in forms of round or elliptical rosettes (pic N° 4), very light-grey in colour, and about 5 to 12 cm across. When mature, the apothecia are about 2-3 mm across; peripheral lobes roughly the same size. The thalle is not pruinose, but the discs in apothecia are.

Habitat:

Found on a dead and decaying branch discarded next to a pathway through the mixed forest (oak, beech, spruce and fir). This forest is on lower slopes of Jura mountain range, and at outskirts of a larger settlement (Gex) in Geneva lake valley.

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Zlatan Celebic
Spotted by
Zlatan Celebic

Gex, Auvergne-Rhône-Alpes, France

Spotted on Mar 3, 2021
Submitted on Mar 6, 2021

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