Common Name: “Field Bolete”
Tells: Found in lawns and roadsides. Yellow stem- & paler cap-flesh both stain greenish blue. Yellow pores age to greenish- or olive-yellow. Never gets bigger than 1-1/2″ across.
Other Information: Red/brown/tan cap may crack in age, but not as much as H. rubellus. Yellow stem gets darker going down, typically w/ reddish dots/powder toward the bottom. Yellow mycelium.
Science Notes: DNA testing moved this mushroom into the newly erected genus “Hortiboletus” (“hortus” = “garden,” a typical environment for the members of this genus).
- NH4OH (Ammonia): Cap surface does not react. Blue-staining on cap flesh disappears.
- KOH: No data.
- FeSO4 (Iron Salts): No data.