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Lurid Bolete

Edible Edible
Autumn Autumn
Summer Summer

This mushroom is edible if well cooked but great caution should be taken in distinguishing it from very similar toxic species, not a mushroom we recommend for the table without a very confident identification.
A confident identification must combine all key features: pores yellow when very young but soon become orange to red and turn dark blue/black where bruised; stem has an orange-red network pattern; when cut in half the flesh turns immediately and strongly blue but has a wine red colour at the base of stem; and there is often a wine red line between the cap flesh and the pores. See a long list of lookalikes at the bottom.

Mushroom Type
Common Names Lurid Bolete
Scientific Name Boletus / Suillellus Luridus
Synonyms Boletus luridis
Season Start Jul
Season End Oct
Average Mushroom height (CM) 14
Average Cap width (CM) 16
Please note that each and every mushroom you come across may vary in appearance to these photos.

Cap

There are some variants of the Lurid Bolete, in some the cap starts pale yellow and velvety but soon becomes smooth and stays yellow-brown, in others the cap is dark red-brown with paler flesh where the cap has been damaged. Peach colour or grey-sepia forms are also common.

Pores

Pores starting yellow-orange and becoming deeper red but staying lighter around the edge. The pores bruise easily and stain dark blue to black.

Stem

The stem is yellow to orange with a dark red mesh which is yellow at the very top of the stem. When cut down the middle the stem flushes blue at the top fading to pale orange-yellow at the bottom with a wine red area towards the base.

Flesh

When sliced down the middle the flesh turns from yellow to blue-black instantly but leaves a wine red line between the cap flesh and the top of the pores, there is also usually a wine red region towards the bottom of the sliced stem. This staining fades after a little time. The red line can just be made out in this photo.

Habitat

Deciduous woodland, particularly Beech and Oak but can sometimes be found in association with conifers.

Possible Confusion

Many toxic species can be confused with the Lurid Bolete:
– The poisonous Oldrose Bolete (Boletus/Imperator rhodopurpureus) has many similarities with the Lurid Bolete but will never have the red line between pores and cap flesh, it is also very rare;
– Devils Bolete, Boletus satanas, is the most toxic possible confusion. It never has the red line that appears between the cap flesh and the top of the pores of the Lurid Bolete, the flesh has a less intense blueing and it won’t have the vinaceous red flesh at the base of stem. The cap of the Devils Bolete is chalky white but this is less reliable as the cap can fade on older Lurid Boletes;
– The Bilious Bolete (Boletus legaliae) and the Ruddy Bolete (Boletus rhodoxanthus) have similarities with the Devils Bolete above and can be distinguished by the same features pointed. In addition to that the Ruddy Bolete’s flesh only turns blue in the cap and upper stem, never down the whole stem;
– The Brawny Bolete (Imperator torosus), the Bitter Beech Bolete (Caloboletus calopus) and the Rooting Bolete (Caloboletus radicans) have yellow pores that turn blue and are never red; While the last two are very bitter and only mildly toxic the first one is quite poisonous.

Edible lookalikes:
– Suillellus mendax is a closely related and extremely similar species, only distinguished by having the mesh pattern restricted to the upper half of the stem and dots in the lower half. It’s equally edible and a harmless confusion;
– The Scarletina Bolete, Neoboletus praestigiator, is sometimes confused by beginners, but this has red dots on the whole stem instead of a mesh like pattern.

Spore Print

Olive-brown. Subfusiform to ellipsoid.

Taste / Smell

Similar to a Penny Bun. Must be well cooked before consumption.

Frequency

Fairly common.

Other Facts

A tasty mushroom but great care should be taken when identifying it.

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