Crab-of-the-woods - Laetiporus sulphureus

"Laetiporus sulphureus" is a species of bracket fungus found in Europe and North America. Its fruit bodies grow as striking golden-yellow shelf-like structures on tree trunks and branches. Old fruitbodies fade to pale beige or pale grey. The undersurface of the fruit body is made up of tubelike pores rather than gills.