Lichen - 4

Description:

Grey-green thallus with slightly brown raised encrustations in the centre.

Habitat:

fallen branch of a silver birch tree

Notes:

I am unsure if this is related to other spottings, as they were all found on the same branch http://www.projectnoah.org/spottings/936... http://www.projectnoah.org/spottings/937... if they are related and just different stages, I'd welcome any comments - thanks!