Pseudotrametes gibbosa (The stump grinder)

Principle species colonised

Typically on broadleaved trees, particularly horse chestnut, sycamore, and beech.

Area affected

Can be found all across the framework of a tree.

Type of decay

White rot.

Fruit body / fungal structures

A creamy-white, rubbery fan-shaped bracket that is frequently quickly coated in algae. Pores might merge into a labyrinth or become spherical. White flesh all the time.

Seasonality and perseverance Perennial: able to last for a number of years.

Significance / Effect / Impact

A extremely effective decayer, particularly of cut stumps, it is generally thought to develop solely in non-living wood, making it an effective natural control agent of Armillaria mellea. Because it resembles Rigidoporus and Perenniporia, it was included in this publication.