Bright orange, not certain whether it's a fungus or eggs. I'd guess at eggs.
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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Simon, this looks like the Nettle Leaf gall. Puccinia urticata
Check it here and post it quick afore someone else..
THREE MARINE PROJECTS
I've never seen the like of this before. I expect I shall see it everywhere...
You will, It is pretty common.
I am glad you got the ID in - on your way to five little toadstools!
...as long as it did to get five little birds, I won't hold my breath!
There's just so much to learn, and I;m interested in almost all of it (even slugs).
Alan, I've moved to you as quickly as I could. True enough, I should have spotted it before, but then I'd not done my posts of this delightful 'gall', even so I had suggested to Simon that it is urticata.
Lat/Lng: 52.245835796879, -0.25551661849022
OS grid ref: TL191622