I hope you're lichen these photos (i'm so sorry)

[urbpan]

Buying a new lichen field guide and then going out to try to identify as many as possible was amazingly humbling. I'm gonna need someone to hold my hand through this process, because it's more difficult than I thought. If you are good at this, I need your help--it might be good to know these are all on Great Blue Hill, on a wet day. Ready? Here goes:



Porpidia crustulata, Concentric boulder lichen.




Unidentified crustose lichen on rock.



Flavoparmelia caperata, Green tree shield lichen.



Xanthoparmelia sp.



Unknown crustose lichen on rock.



Possibly Arctoparmelia centrifuga.



Unknown crustose lichen on rock.



Unidentified crustose lichen on tree bark.



Unknown foliose lichen on rock (Peltigera sp.?)



Underside of the same.



Unknown crustose lichen on rock.



Unknown foliose lichen on rock (Umbilicaria sp.?)



Underside of the same.



Unknown foliose lichen on rock (Lasallia papulosa?)



Unknown crustose lichen on rock.



Multiple foliose lichens on rock.