Genus Helotium is a type of fungi that belongs to the family Helotiaceae. It is also known as Helotiales, and its common name is cup fungi. The word "Helotium" comes from the Greek word "helos" which means "marshy meadow". This genus has different synonyms such as Leotia, Otidea, and Phialea. Leotia is a cup-shaped fungus that grows on the forest floor, while Otidea looks like a small, brightly coloured cup on the ground. Phialea is a grayish-white fungus that grows on dead wood. These synonyms are used interchangeably to refer to the same type of cup fungi that belong to the family Helotiales.