Species flashcards

Description

Cap: 6-20 (30) cm in diameter; hemispherical when young, then spreading; pale gray, brownish-gray; felty surface, often cracking.

Tube layer: Narrow-pored when young; pale lemon yellow, then dirty olive-yellow, turns blue on pressure.

Stem: 4-12 cm long, 3-8 cm thick; more or less ventricose, often spindle-like tapering, rooting; lemon yellow, sometimes pinkish spotted; finely reticulated, mostly only at the apex.

Flesh: Thick, firm when young, later soft; pale yellow, turns blue when cut; unpleasant smell, bitter taste.

Spore: Pale brown; 10-15 x 4-6μm; spindle-shaped.

Occurrence: From July to October, in calcareous deciduous forests, not common species. Found under oaks and occasionally in beech forests.

Edibility: Slightly poisonous, may cause gastrointestinal problems. Bitter taste; strong and unpleasant mushroom smell.

Confusion: Similar to the edible king bolete. Generally occurs in the same place and time as Satan's bolete.

Note: The Boletus name comes from the Greek word Bolos - lump of clay, or marble. radicans means rooting, root-like.

Species description: Boletus radicans from 1801 is known from the writings of Christiaan Hendrik Persoon.

Taxonomy

1. PhylumBasidiomycota
2. ClassAgaricomycetes
3. OrderBoletales
4. FamilyBoletaceae
5. GenusCaloboletus

• Species: radicans
• Described by: (Pers.) Vizzini (2014)
• Hungarian name: gyökeres tinóru, kesernyés tinóru
• Lifestyle: mycorrhizal
• Edibility: poisonous