White Brain - Exidia thuretiana

Description

A white jelly fungus, usually more or less opaque and fairly firm in texture.  It may have yellowish or grey-blue tinges.  The fruiting bodies are cushion shaped, becoming convoluted and merging with adjacent ones to for a larger mass. 

Similar Species

Crystal Brain (Exidia nucleata) has opaque white inclusions and is usually less firm and more translucent

Identification difficulty
Recording advice

Photogrpah in habitat; note substrate and associated tree species. 

Habitat

Mainly on dead and decaying hardwood, particularly Beech and Ash.

When to see it

Late autumn and early winter in Britain.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
White Brain
Species group:
fungus
Kingdom:
Fungi
Order:
Auriculariales
Family:
Auriculariaceae
Records on NatureSpot:
3
First record:
03/03/2022 (Pochin, Christine)
Last record:
10/12/2025 (Catherine Horrell)

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% of records within its species group

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