two turned blue halves of an edible mushroom gyroporus cyanescens lie on a cutting board.

blue blueing bluing board body bolete boletus brown cap carving cavity chopping color cornflower cotton cross culinary cut cutting cyanescens dark eatable edible food forest fresh fruit fungi fungus gyroporus half harvest harvesting hollow indigo ingredient macro mushroom mycology natural navy pith quickly raw reaction slice sliced slices soft stains stem top turn two view white whitish wild yellow yellowish