Are the strange growths the remains of last year's flowers, or something else?
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Ah thanks, I thought it might be something like this. Tried googling and only got dictionary entries for Aceria fraxinivorus, but images were good!
The name has been changed slightly to Aceria fraxinivora.
Is it worth re-posting this photo as a separate observation to get an ID of the galls? The original observation was of the host tree.
Lat/Lng: 52.561927777778, -0.44858055555556
OS grid ref: TL052971