Another Alder Gall

Just up the road today I noticed this on Alnus glutinosa (Alder):

Taphrina tosquinetii gall

Taphrina tosquinetii gall

This is caused by a different member of the fungal genus Taphrina from the one that causes Alder Tongue and as well as the blistering, it makes the leaves grow up to double their normal size.

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