Name in North American Boletes: Boletus chrysenteron
- Genus 2: Boletus
- Genus 3: Xercomus
Common Name: “Red Crack Bolete”
Tells: Olive-brown cap w/many red-edged cracks. Stem is yellow by pores, purplish-red by base, & bruises blue-green. Yellow pores age to brown & stain blue. Cap flesh blues slowly.
Other Information: Stem may have ridges but is not netted. White mycelium. The rate of staining in the pores & flesh can vary a lot.
Science Notes: DNA testing moved this mushroom into the newly erected genus “Xerocomellus.”
- NH4OH (Ammonia): Cap surface may turn brown or have no reaction.
- KOH: Cap surface turns dark brown or black. Cap flesh turns buff.
- FeSO4 (Iron Salts): Cap flesh turns lemon yellow or olive.