Species details

Russet brittlegill

Russula mustelina

Traditionally edible
Russet brittlegill – Russula mustelina

Photo: Szabi237 · CC BY 3.0 · Photo source · License

Description

A robust hazel to ochre-brown brittlegill that can resemble a bolete from above but has gills beneath the cap.

Identification features

The cap is thick and smooth and the skin peels poorly. Gills begin whitish and become cream to brownish. The stout white stem may brown where damaged.

Identification checklist

Check the stout fruitbody, hazel-brown cap, pale gills, brittle flesh and spruce association. Young specimens can look remarkably bolete-like from above.

Detailed features

Cap
A robust hazel to ochre-brown brittlegill that can resemble a bolete from above but has gills beneath the cap.
Hymenophore
Gills begin whitish and become cream to brownish.
Stem
The stout white stem may brown where damaged.
Flesh
Whitish, later brownish, firm and brittle.
Smell
Pleasant, mild smell.
Spore print
Cream to pale cream.

Size

Cap diameter
5–14 cm
Stem height
3–11 cm
Stem diameter
1,5–3 cm

Habitat

Especially at higher elevations with spruce and other conifers; late summer and autumn.

Fruiting period

August, September, October

Ecology

Trophic mode
Mycorrhizal
Host trees
Spruce (Picea)
Substrate
Forest soil
Notes
Mycorrhizal species. Especially at higher elevations with spruce and other conifers; late summer and autumn.

How to separate similar species

Leather brittlegill can have a similarly brown cap but usually yellower gills. Old specimens may resemble fetid or almond-scented Russulas; smell and cap margin are useful additional characters.

Similar species

Interesting facts

Did you know? When its brown cap emerges through spruce needles, it can initially resemble a bolete.

Extended-description sources