Omphalotus

About

Omphalotus is a genus of basidiomycete mushroom, in the family Omphalotaceae, formally circumscribed by Victor Fayod in 1889. Members have the traditional cap and stem structure. They are saprobic, and fruit in clumps on stumps or buried roots. The best-known and type species is the jack-o'-lantern mushroom (Omphalotus olearius). Omphalotus mushrooms have been mistaken for chanterelles. All Omphalotus species are presumed poisonous, causing severe gastrointestinal symptoms. Some Omphalotus species have bioluminescent properties.

Summary from Wikipedia