2008
NS3980 : Leaf galls on common alder
taken 16 years ago, near to Alexandria, West Dunbartonshire, Scotland
Leaf galls on common alder
This common alder (Alnus glutinosa), which was situated beside the River Leven, had a large number of these blisters or pouches on its leaves, possibly caused by a fungus, Taphrina tosquinetii.