Orange Peel Fungus

The poisonous Otidea leporina differs in that it is brownish rather than bright orange, it is taller (to 7 cm high), has inward-folding edges, and has a cleft down one side. The inedible Otidea onotica differs in that it is orangey yellow rather than bright orange, it is taller (up to 10 cm high), and has a cleft down one side. The inedible Caloscypha fulgens differs in that it is smaller (under 4 cm broad) and turns blue/green when bruised or old, particularly along the edges. The edible Sowerbyella rhenana differs in that it is much smaller (1-2 cm broad) and has a whitish rudimentary stem.