Definition: Ericiosphaeria is a fungal genus in the family Actinobasidiaceae, commonly known as the white fungus or the black fungus. This genus contains several species that are known for their ability to produce spores, which are tiny structures that germinate and grow into new fungi. Ericiosphaeria is often associated with the production of spores by various types of fungi in the soil, particularly those found in damp environments such as forests and wetlands.