Yellow foliose lichen on concrete post

Yellow foliose lichen on concrete post

Observation - Yellow foliose lichen on concrete post - UK and Ireland. Description: Yellow foliose lichen in patches on concrete post. Present most abundantly at the top of post (on sides and top) in patches. Post was rough and fairly new, but not recently cleaned. Nearby, about 10 feet away were trees with the same species on, all n

Yellow foliose lichen in patches on concrete post.
Present most abundantly at the top of post (on sides and top) in patches.
Post was rough and fairly new, but not recently cleaned.
Nearby, about 10 feet away were trees with the same species on, all near a road.