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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Can't suggest an ID for your fungus but I think you've slightly muddled the Latin and common names:
Tremella mesenterica - Yellow Brain
Auricularia auricula-judea - Jews Ear or Jelly Ear
You can avoid this kind of confusion by using the 'Get recommended' button when you enter a common or scientific name. The button will give you the correct counterpart (depending upon which you entered).
University of Edinburgh and Biodiversity Observatory (OU)
Its neither jew's ear nor Tremella. I think it might be the Phlebia instead. I think we have examples of both the jew's ear and Tremella on ispot so you could try using the search to find them and compare with what is shown in your photo. Sometimes you imagine a fungus is going to change shape as it develops but in this case i think it just stays as a crust and covers more area.
I used as reference A colour guide to familiar Mushrooms and Fungi by Dr. Mirko Svrcek. Under his heading Jew's Ear (Hirneola auricula-judae), he lists three representatives of the two families of Basidiomycetes - Tremella mesenterica, looked very similiar in the illustration being orange in colour but I was not completely sure - so thanks for all your comments.
Lat/Lng: 52.2, -1.2
OS grid ref: SP6057