lichen species found on tree.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
The big bushy lichen is an usnea of some kind, but I'm not sure which species! Try using the key at http://dbiodbs.units.it/carso/chiavi_pub21?sc=351 to see if you can identify any of the other species in your photo.
Usnea is a sign of clean, low nitrogen, air - it's not present here in York!
OPAL Community Scientist
Yorkshire and Humber
Lat/Lng: 50.3, -4.2
OS grid ref: SX4552