Description
Name in North American Boletes: Boletus peckii
Genus: Caloboletus
- Genus 2: Boletus
- Genus 3: Butyriboletus
Species: peckii
Common Name:
Tells: Pale cap flesh w/red larval tunnels, blues slightly, & tastes sour or bitter. Yellow pores stain blue but resolve brown. Red & yellow netted stem. Very rare.
Other Information: Red to brownish cap. An extraordinarily rare mushroom.
Science Notes: DNA testing initially moved this exceptionally rare mushroom from Boletus to a newly erected Butyriboletus, but subsequent finds and testing have confirmed that it actually belongs in Caloboletus. See the discussion in the text and comments at Mushroom Observer #246697.
Edibility: Unknown, but unlikely given the bitter taste.
CHEMICAL TESTS:
- NH4OH (Ammonia): Cap surface turns deeper red (yellow in bleached areas) and then dingy gray-olive. Cap flesh turns yellowish, with greenish blue near the tubes.
- KOH: Cap turns rusty red. Cap flesh turns bright orange.
- FeSO4 (Iron Salts): No data.
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