Helvella acetabulum is a type of fungus that belongs to the family of Helvellaceae. The common name for this fungus is "white saddle," which derives from its distinctive shape. Despite being a less popular species, Helvella acetabulum has many synonyms, including Elfin saddle, Helvelloideae, Sedgwickia, and Saddle fungus. This fungus can be found in various habitats, including deciduous and coniferous forests, and it usually appears in summer and autumn. The fruiting body of Helvella acetabulum has a unique structure, which makes it easy to identify. Though it is not widely used in the culinary world, this fungus is edible, but it requires proper cooking to avoid any potential toxicity.