Species details

Burnt knight

Tricholoma ustale

Inedible
Burnt knight – Tricholoma ustale

Photo: Adrien BENOIT à la GUILLAUME · CC BY-SA 4.0 · Photo source · License

Description

A brown Tricholoma of deciduous woods that darkens strongly with age as if scorched; bitterness and possible gastrointestinal effects make it unsuitable for food.

Identification features

The cap is smooth, chestnut to reddish brown and may become almost black when old. Gills start pale and later develop brown spotting. The stem is paler above and brown toward the base.

Identification checklist

Check the smooth brown cap, progressive blackening of older parts and brown spotting on the gills. Always compare several brown Tricholoma species.

Detailed features

Cap
The cap is smooth, chestnut to reddish brown and may become almost black when old.
Hymenophore
The gills are initially pale, later developing brown spots.
Stem
The stem is paler above and brown toward the base.

Habitat

Grows mainly with beech and other broadleaved trees, from late summer to late autumn.

Fruiting period

August, September, October, November

Ecology

Host trees
Beech (Fagus)
Notes
Grows mainly with beech and other broadleaved trees, from late summer to late autumn.

How to separate similar species

Similar brown Tricholoma include species capable of causing gastrointestinal poisoning. Cap colour alone is not enough.

Similar species

Extended-description sources