Order Nidulariales, commonly known as bird's nest fungi, refers to a group of fungi characterized by their unique fruiting bodies resembling miniature birds' nests. They typically contain small, spherical peridioles (eggs) that contain spores. While the scientific name of this order is commonly used, there are several synonyms that can also be used to refer to these fungi, including the "cup fungi", "nest fungi", and "bird's nest cup fungi". These synonyms highlight the distinct physical characteristics of this group of fungi and their resemblance to cups or nests. Bird's nest fungi can be found in various habitats such as forests, meadows, and even urban areas worldwide.