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Russula mairei

 

Russula mairei is commonly known as the Beechwood Sickener. It has a  bitter taste and if eaten it usually causes sickness, stomach pains and vomiting. The caps vary from almost white to a rich rosy pink.

  This very brittle red russula  is found only beneath beech trees, sometimes in mixed woodland but more often in beech woods. It is not easy to distinguish between some of the red members of the Russula genus. This particular species is poisonous, as indeed is the rather similar Russula emetica which grows under conifers. Distinguishing features are the greater brittleness of Russula mairei; its convex cap shape even when fully mature; and its cap cuticle, which peels only 1/3 to the centre whereas that of Russula emetica peels at least 2/3 to the centre.

Cap

3 to 9 cm in diameter, smooth, non-striate and bright red or pink (very occasionally almost completely white) the cap of this species generally remains convex with at most only a shallow central depression.

Slightly sticky when wet, the cap surface dries to a matt finish.

The flesh red or pink immediately beneath the cuticle; elsewhere the flesh is white.

Gills

White, sometimes with a greenish tinge, the adnexed, crowded gills are very brittle indeed and easily crumble if they are handled.

Stipe

10 to 15 mm in diameter and 20 to 40 mm tall, the white stems are smooth and slightly clavate. The stem flesh is white; there is no stem ring.

Spore print

White.

Odour/taste

Faint odour of coconut in young specimens; very hot taste.

Habitat

Under beech trees.

Season

August to October.

Occurrence

Frequent.

Similar species

  1. Russula emetica is found under conifers; its cap becomes depressed when fully mature and the cap cuticle peels more readily. It is just as poisonous as Russula mairei and so both should be avoided when gathering mushrooms for food.

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