- Omphalotus, genus Omphalotus - a genus of mushrooms with a depressed disc in the cap
--1 is a kind of fungus genus
--1 is a member of Tricholomataceae, family Tricholomataceae
--1 has members:jack-o-lantern fungus, jack-o-lantern, jack-a-lantern, Omphalotus illudens