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Bitter Bolete vs Penny Bun / Porcini

Tylopilus felleus and Boletus edulis are confused for one another often enough to be worth putting next to each other.

Tylopilus felleusBitter BoleteInedible / unclear

Not poisonous, simply so bitter that one cap ruins a whole pan of porcini. A minority of people cannot taste it at all.

Boletus edulisPenny Bun / PorciniEdible

The king bolete. White pore surface ageing yellow-olive, fat stem with a fine white net, no bitterness.

Side by side

Tylopilus felleusBoletus edulis
In this gameInedible / unclearEdible
HabitatNot recorded yetMycorrhizal with beech, oak, birch, spruce and pine, in woods and their edges.
SeasonNot recorded yetSummer to late autumn.
Spore printNot recorded yetOlive-brown.

This comparison cannot make a mushroom safe to eat. It sets out the few characteristics this game records, in general terms, for two species that vary by region, age and growing conditions. Real specimens overlap in ways no table and no photograph can separate, and the deadly one here is deadly in a single meal. Ask a qualified local expert, every time.

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Tylopilus felleus is also confused with Pine Bolete.

Boletus edulis is also confused with Devil's Bolete, Pine Bolete, Bay Bolete and Birch Bolete.

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