Name in North American Boletes: Boletus hypoxanthus
- Genus 2: Boletus
Tells: Yellow pores DNS or bruise blue-greenish & can be huge, esp. by the stem. Oft-velvety, brownish (tawny-, red-, pale yellow-, to orange-) cap may crack w/age.
Other Information: Yellowish cap flesh DNS or may blue slightly. Yellow to buff-tawny stem is yellow on top & often at the base, & may have brownish powder-dots over the midsection. Likes oaks but not exclusively. Will grow on decaying trunks too.
Science Notes: DNA testing moved this mushroom into the newly erected genus “Xerocomus.”
- NH4OH (Ammonia): Cap skin turns blue-green. Cap flesh turns blue to bluish.
- KOH: Cap skin turns blue-green.
- FeSO4 (Iron Salts): No data.