Is this just another form of Evernia prunastri or is it something different such as a Ramalina?
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
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Thanks. Actually have just looked this up and it says Ramalina fastigiata normally grows in well lit areas whereas these specimens rarely get the light as far as I recall as they are on hawthorn branches so in summer the canopy would completely shade them and in the winter the tree is shaded by loads of others on the south side. Not sure if this extra bit of information would influence the ID?
Consider me a lot less certain now. The only other possibility I can see is Ramalina calicaris, which can tolerate a bit more shade.
Lat/Lng: 51.9583525, -0.63876694444444
OS grid ref: SP936297