Stinking Brittlegill

Russula foetens

Also known as Stinking Russula.

Stinking Brittlegillclancy / CC BY-SA 3.0

About this fungus

Stinking Brittlegill is a fungus in the Russulaceae family. Its habitat and field characteristics are summarised below.

A large honey-brown brittlegill with a very sticky cap, deeply grooved margin and a strong unpleasant smell that becomes more fish-like with age.

What to check

Look for a viscid ochre to brown cap with a long-lined margin, brittle cream gills that develop rusty spots, a white stem that may become hollow, and a white to cream spore print. There is no ring or volva.

Variation

The cap is glutinous when wet but can dry dull and patchy. Older mushrooms become darker, more strongly spotted and more unpleasant-smelling.

Lookalikes

Russula grata has a bitter-almond or marzipan-like smell, while R. subfoetens is extremely similar and may require chemical or microscopic study. Regional members of the Foetentinae group are not reliably separated by cap colour alone.

Habitat and range

Mycorrhizal on woodland soil with broadleaf or conifer trees. Tree associations and the exact limits of similar foul-smelling Russulas vary geographically.

Food safety

Inedible.

Photographs

Species to compare

Similar mushrooms to compare against:

Further reading

Wikipedia · First Nature

A glimpse of the research.

Weather response

A repeatable weather association was found in the records, alongside the usual seasonal pattern.

Higher or lower ground?

Records tended to come from higher ground relative to other fungal records in the study.

These are patterns in recorded observations, not rules, forecasts or identification evidence. Local conditions and recording patterns can affect the findings.

Read six species examples →