Dodgydoug's picture

Taphrina tosquinetii

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

On Alder leaves.

Identifications

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.

Comments

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

judge

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 http://www.naturespot.org.uk/species/acalitus-brevitarsus and http://www.ispotnature.org/node/437618