The genus Gastrocybe refers to a group of small, agaric-like mushrooms that belong to the family Tricholomataceae. These mushrooms are known for their stalked caps and gills that are close together and often forked. While there are no true synonyms for the genus Gastrocybe, there are a few common names that are sometimes used to refer to these mushrooms. One such name is Fairy Bonnets, which refers to the mushroom's small size and delicate appearance. Another name is Clustered Mycena, which describes the way these mushrooms tend to grow in large groups or clusters. Finally, some people refer to Gastrocybe mushrooms as Stalked Lentinellus, which is a nod to their edible and tasty nature.