Sulphur shelf

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. Like other bracket fungi, they may last many years and fade to pale grey or brown. The undersurface of the fruit body is made up of tubelike pores rather than gills. The cap is small and knob-shaped, overlapping in an irregular pattern. Wide, shaped like a fan and attached direct to the trunk of a tree, it has a shelf-like appearance and is sulphur-yellow to bright orange in colour and has a suedelike texture. When it is old the cap fades to tan or white. The shelves often grow in overlapping clumps, and each one may be anywhere from 5 to 60 cm in diameter and 4 cm thick. The fertile surface is sulphur-yellow with small pores or tubes and has a white spore print.