Tells: Yellow pores stain blue. Stout stem red/pink high & yellow low. Tawny cap reddens & may crack or fissure w/age.
Other Information: The red in the stem & lack of bitterness distinguishes from calopus and rubripes, which are inedible. Pale yellow cap flesh blues unpredictably, from rapid to erratic to not at all.
- NH4OH (Ammonia): No data.
- KOH: Cap skin turns dark reddish-brown to black.
- FeSO4 (Iron Salts): Cap flesh turns blue-gray.