Species details

Nitre waxcap

Hygrocybe nitrata

Inedible
Nitre waxcap – Hygrocybe nitrata

Photo: Gerhard Koller · CC BY-SA 3.0 · Photo source · License

Description

A grey-brown to brown waxcap with pale gills and a conspicuous unpleasant chlorine-like or chemical smell.

Identification features

The cap is initially almost conical, later expanded, grey-brown to brown. Gills are creamy white, broad, and brittle. The stem is cream to brownish; flesh smells characteristically of chlorine.

Identification checklist

Check the grey-brown cap, pale broad gills, and especially the strong chlorine-like chemical smell. Odour is important but should not be the only feature.

Detailed features

Cap
The cap is initially almost conical, later expanded, grey-brown to brown.
Hymenophore
Gills are creamy white, broad, and brittle.
Stem
The stem is cream to brownish; flesh smells characteristically of chlorine.
Smell
Very strong unpleasant chlorine smell.
Spore print
White.

Size

Cap diameter
2–8 cm
Stem height
3–10 cm
Stem diameter
0,3–1,2 cm

Habitat

Grows in meadows, lawns, fields, and also woodland, mainly in autumn; rare.

Fruiting period

September, October

Ecology

Substrate
Grassland, Forest soil
Notes
Grows in meadows, lawns, fields, and also woodland, mainly in autumn; rare.

How to separate similar species

Other brown waxcaps can look similar but differ in smell, blackening, or gill colour. Waxcaps are a difficult group to identify.

Similar species

Conservation

Red list
I – indeterminate category
Notes
On the Slovenian Red List: I – indeterminate category.

Interesting facts

Did you know? Check the grey-brown cap, pale broad gills, and especially the strong chlorine-like chemical smell. Odour is important but should not be the only feature.

Extended-description sources