A lichen

A lichen

Observation - A lichen - UK and Ireland. Description: Thanks to Holger Thüs & Pat Wolseley for help with the ID at the recent introduction to lichens course. Naturally any remaining errors are entirely my responsibility.

Thanks to Holger Thüs & Pat Wolseley for help with the ID at the recent introduction to lichens course. Naturally any remaining errors are entirely my responsibility.