Key Features

Entire mushroom dull white (but bruised areas usually yellowish or orangish). Cap usually concave or wavy when mature, bald. Gills running down the stalk, well spaced, shallow, blunt-edged, and fairly thick, often with connecting veins in between. Stalk solid (not hollow), not snapping open cleanly like a piece of chalk. Veil, ring, and volva absent. Growing on ground in woods, not in fused clusters. Other Features: Medium-sized to large; flesh thick and white; spores white.