Gyrodon merulioides Ash Bolete
Caps are 7-20 cm across, dry, yellow-brown to olive, kidney-shaped to irregularly lobed, with an inrolled margin, and becoming flat. Flesh is tough, yellow, and stains blue-green to brown. Tubes are shallow, and yellow to ochre. Pores are radially arranged, large, angular, and variable in shape. Stalks are short, up to 4 cm, stout, and off-centre. Also known as Boletinellus merulioides, it fruits under ash. Edible.