Russula aeruginea

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Russula aeruginea

10 October 2025 Minley Wood, Hampshire. Photograph copyright Leif Goodwin.

Cap

Convex, expanding with age, sometimes with a central depression, smooth, margin sometimes grooved, greyish green to yellowish green, often with rust brown spots, to about 12 cm across

Gills

Fairly crowded, cream to pale yellow

Stem

Cylindrical, white, often with rusty spots at the base

Flesh

White, brittle

Smell

Indistinct

Taste

Mild

Season

Autumn

Distribution

Common

Habitat

On soil with birch

Spore Print

Cream

Microscopic Features

Spores ellipsoidal, warty with an incomplete connecting network (6-10) x (5-7) µm2

Edibility

Although considered by some to be edible, there are reports of this species causing stomach ache, thus it should be treated as poisonous and avoided.

Notes

The cap cuticle peels readily. The cap surface turns orange on exposure to KOH. The flesh and stem surface turn slowly pink on exposure to iron salts.

Russula aeruginea

Spores in Melzer's solution viewed with a 100X immersion objective. 10 October 2025 Minley Wood, Hampshire. Photograph copyright Leif Goodwin.

Russula aeruginea

Spores on a glass slide. 10 October 2025 Minley Wood, Hampshire. Photograph copyright Leif Goodwin.

Russula aeruginea

4 October 2022 Minley Wood, Hampshire. Photograph copyright Leif Goodwin.