Principle species colonised

Mainly broadleaved trees including Horse Chestnut, Lime, Beech and Sycamore

Area affected

Principal branches and the main stream

Type of decay

White-rot of ripe or sapwood

Fruit body / fungal structures

A fan-shaped bracket with a short stem that is soft and squishy. A layer of dark brown scales covers the light brown top surface. The bottom has a creamy white colour.
Seasonality and perseverance Annual: usually in late summer, appearing from April to December, and rapidly decaying.

Significance / Effect / Impact

Decay is frequently limited to a comparatively small area connected to a wound. However, when the fungus has progressed into coalescent zones of defective wood exposed by numerous or severe wounds, extensive deterioration and subsequent stem fracture may result.