Taphrina alni - Alder Tongue Gall

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Classification AKA Taphrina amentorum

Phenology Persists throughout most of the year.

Identification This is a gall induced by the fungal pathogen Taphrina alni which causes a chemically induced distortion of female Alder catkins.

Life Cycle

Habitat On Alder (Alnus glutinosa).

Alder Tongue 10514

 

Alder Tongue 10519

Alder Tongue 10509

Alder Tongue 10512

 

Alder Tongue 10511