Tiny blackish discs under log

Tiny blackish discs under log

Observation - Tiny blackish discs under log - UK and Ireland. Description: Small blackish discs under log, a couple of mm across, look to have whitish edges, often wavy edged, whitish edges, looked fungal but unfamiliar. Could be decrepit, but couldn't see any fresh ones of any different colour.

Small blackish discs under log, a couple of mm across, look to have whitish edges, often wavy edged, whitish edges, looked fungal but unfamiliar. Could be decrepit, but couldn't see any fresh ones of any different colour.