Description
Fruit-body forms a green (later turning to dark red) worm- or tongue-shaped growth on Alder cones hanging in trees.
Occurrence
On Alder cones hanging in trees. Spring to summer.
Parasitic.
Related and/or similar species
The yellow-green Taphrina pruni on cherries and plums (Bird cherry, Blackthorn) and Taphrina deformans, causing curl on Peach leaves.