The Genus Marasmius is a group of fungi known for their small size and delicate cap. They are found in many different habitats, including forests, grasslands, and wetlands. The common names for this group of fungi include the Fairy Bonnets, Pinwheels, and Parasols. Other synonyms for Genus Marasmius include the Mycenastrum genus and the Collybia genus. These synonyms reflect the taxonomic changes that have occurred over time as scientists have studied these fungi and refined their understanding of their true relationships. Despite these changes, the unique morphology and ecological roles of the Genus Marasmius continue to fascinate and intrigue mycologists and nature enthusiasts alike.