Dictyonema interruptum

About

Dictyonema coppinsii is a filamentous, blue‑green basidiolichen in the family Hygrophoraceae. It forms thin, felt-like mats of tangled filaments that grow over mosses on bark, rocks, and soil in persistently humid conditions. The species is found along the western edge of Europe, including Scotland, Ireland, and Atlantic islands, with a possible occurrence in Mauritius. Originally misidentified under an invalid name, it was properly described in 2014 when researchers discovered it was distinct from its tropical relatives.

Summary from Wikipedia