- Species 2: gertrudiae
Common Name: “Noble Bolete”
Tells: Pale stem w/ ever-browner streaks going down, may be “delicately netted”. Cap often pitted or wrinkled. White pores age toward brownish yellow.
Other Information: Likes oak & beech. White cap flesh gets yellowish by the pores. If you see a yellow band by the pores, check B. gertrudiae. A good looking mushroom.
Science Notes: Whole genome testing has merged what used to be known as B. gertrudiae into B. nobilis. People had been wondering about that forever since the only difference was the absence or presence of a distinct yellow band at the top of the stem. We now know that this feature is irrelevant from the genetic point of view.
- NH4OH (Ammonia): Cap flesh turns pink/red. Stem skin turns reddish.
- KOH: Cap surface turns amber brown. Cap flesh turns purplish red. Stem skin turns amber to brown.
- FeSO4 (Iron Salts): No data.