Species details

Beech milkcap

Lactarius blennius

Inedible
Beech milkcap – Lactarius blennius

Photo: Holger Krisp · CC BY 3.0 · Photo source · License

Description

An olive-grey to grey-green milkcap with a sticky cap and darker concentric blotches, characteristically associated with beech.

Identification features

The pale gills release white, distinctly acrid latex when damaged; the flesh is brittle and may grey slightly in air.

Identification checklist

Check the entire fruitbody for identification. An olive-grey to grey-green milkcap with a sticky cap and darker concentric blotches, characteristically associated with beech. The pale gills release white, distinctly acrid latex when damaged; the flesh is brittle and may grey slightly in air. Typical habitat: Deciduous woodland, especially beech woods, from summer into autumn.

Detailed features

Cap
An olive-grey to grey-green milkcap with a slimy cap and darker concentric spots, characteristically associated with beech.
Hymenophore
The pale gills exude white, distinctly acrid milk when damaged; the flesh is brittle and may become slightly grey in air.
Flesh
White and brittle, sometimes greying slightly in air.
Smell
No distinctive smell.
Spore print
Pale cream.

Size

Cap diameter
4–10 cm
Stem height
4–6 cm
Stem diameter
1–1,5 cm

Habitat

Deciduous woodland, especially beech woods, from summer into autumn.

Fruiting period

July, August, September, October

Ecology

Trophic mode
Mycorrhizal
Host trees
Beech (Fagus)
Substrate
Forest soil
Notes
Mycorrhizal species. Deciduous woodland, especially beech woods, from summer into autumn.

How to separate similar species

Compare especially with these similar species: Lactarius fluens, Lactarius quietus, Lactarius species. Check the entire fruitbody, spore-bearing surface, stem, texture, changes after bruising and habitat. A single feature or photograph is not enough for reliable identification.

Similar species

Interesting facts

Did you know? The species is characteristically associated with beech; white acrid latex and a sticky grey-olive cap are key clues.

Extended-description sources