Mock Oyster Mushrooms

Cream to orange colored fungi with hairy cap surfaces growing in shelf-like clusters. Each cap is fan-shaped. Pale orange gills are crowded with some short gills. There are no prominent stipes.

Although I don't recall smelling anything particularly foul, Phyllotopsis nidulans is notorious for emitting a rather unpleasant, sulphurous smell. Some of the pigments responsible for the yellow-orange color of this fungus are keto-carotenoids. Also of interest, P. nidulans contains its own amino acid, 3-(3-carboxyfuran-4-yl) l-alanine