Rust coloured "crust" fungus

Rust coloured

Observation - Rust coloured "crust" fungus. Description: Found on Oak branch in an area of this wood dominated by European Hornbeam and Hazel. Seen similar on other tree species. Can't get close enough for a more detailed pic. Whitish layer centre is frost or remains of snow.

Found on Oak branch in an area of this wood dominated by European Hornbeam and Hazel. Seen similar on other tree species. Can't get close enough for a more detailed pic. Whitish layer centre is frost or remains of snow.