Dodgydoug's picture

Taphrina tosquinetii

Observed: 14th September 2012 By: DodgydougDodgydoug’s reputation in Fungi and Lichens

On Alder leaves.


Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.


Mydaea's picture

These are Alder leaves Alnus

These are Alder leaves Alnus glutinosa, and the gall is Taphrina tosquinetii, a fungus.

Mydaea's picture

Eriophyes brevitarsus is very

Eriophyes brevitarsus is very different from Taphrina tosquinetii. This is the fungus, not the mite.

dejayM's picture


It has taken me a while to come to this. I was put off by the second ID but I have no doubt about it being Taphrina tosquinetii.
Eriophyes brevitarsus appears to have a quite different appearance, particularly on the leaf underside. However, it would not be difficult to make the obvious mistake, in the few cases I have seen; one would normally not see the mite nor the fungus causer.
Judge for yourself here and