Artist's Fungus, Ganoderma applanatum. These amazing fungus grow on dead or dying trees, and can be up to 16 inches (40.6 cm) wide. They are also as hard as wood. Lamar Haines Memorial Wildlife Area, Flagstaff, Arizona

Canon EOS Rebel XSi 1/20 second at f 13, ISO 100, 55-250mm at 225mm
Jeff Colburn