Pg. 92 "Mushrooms of Ontario and Eastern Canada". Suspicious (poisonous) Fruitbodies have a radius of 2 to 7 cm they are rotund to ellipsoid. Often with a short stem. The colour on the outside is brown/yellow, whitish yellow or reddish yellow. The surface shows small fissures and is often speckled and covered in scales. Under the surface the skin is white thick, first yellow fleshed later similar to thick leather. The inside is at first whitish but will soon turn blue/gray/black and later appear dusty. It grows in summer in mountainous areas in woods. If you consume the flesh without first blanching it it will taste sharp and be harmful. But even when properly prepared it does not taste good. And it is not to be confused with a real truffle.