Omphalotus

Omphalotus is a genus of Basidiomycete mushroom. Members have the traditional cap and stem toadstool form. Its most famous species is the American jack o'lantern mushroom (Omphalotus olearius), a poisonous look alike of chanterelles. It and the Australian ghost fungus (Omphalotus nidiformis) have bioluminescent properties.