What is peziza domiciliana?

Peziza domiciliana, commonly known as the "domicile cup fungus," is a species of cup fungus in the family Pezizaceae. It is found primarily in indoor environments, typically growing on damp or decaying materials such as old carpeting, wallpaper, or wood.

This fungus produces cup-shaped fruiting bodies that are typically light brown to tan in color and measure around 1-3 centimeters in diameter. The outer surface of the cup is smooth and slightly folded.

While Peziza domiciliana is not considered to be toxic or harmful to humans, it is an indication of excess moisture or water damage in a building. If left unchecked, it can contribute to mold growth and poor indoor air quality.

To prevent the growth of Peziza domiciliana and other fungi in indoor environments, it is important to address and fix any sources of water damage, improve ventilation, and maintain low humidity levels. Removing affected materials and thoroughly cleaning and drying the area can also help prevent future outbreaks.