Coniocarpon fallax

Coniocarpon fallax is a species of crustose lichen in the family Arthoniaceae. It forms a thin, pale grey-brown crust on the bark of deciduous trees and is recognised by its small, often star-shaped fruiting bodies with distinctive orange-red margins and dark centres. The species grows in humid forests with mild, oceanic climates and is considered rare throughout its range in Europe and the parts of Asia where it has been recorded. Originally described by Erik Acharius in 1803 as Spiloma fallax, it was transferred to the genus Coniocarpon in 2014 following molecular phylogenetic studies that restructured the classification of the Arthoniaceae....read more on Wikipedia.