Volvaria is a genus of fungi that belongs to the family Pluteaceae, commonly known as the volva or calyptra, which are structures that surround the base of the mushroom stem when it emerges from the ground. Some synonyms for Volvaria are Calyptella, Calyptromphalus, Limacella, Pluteus, and Volvopluteus. These different names primarily refer to the shape and structure of the calyptra, which is a distinguishing feature of this genus. Volvaria mushrooms are found in many countries and are typically small, delicate, and often brightly colored. Some species of Volvaria are edible, while others are poisonous, so it is important to identify the mushroom before consumption.