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Home | Fungi | Peziza domiciliana

Peziza domiciliana

peziza domiciliana growing on concrete

Peziza domiciliana, a cup fungus often referred to as the common indoor mushroom is usually associated with water-damaged buildings. “Domiciliana” means “around the house”. It has been found in a wide range of habitats including carpets in living rooms, shower stalls, damp closets, behind refrigerators, around leaky water beds, in cellars, greenhouses, under porches, damp walls, and even in cars. Peziza is the sexual state (or what mycologists call teleomorph) of this fungus. The asexual state (i.e., the anamorph) is called Chromelosporium. Just like Peziza, Chromelosporium can be found colonizing indoor surfaces of damp buildings.  It’s also commonly found in soil, rotten or damp wood, humus, and garden compost. No information is available regarding health effects, toxicity, or allergenicity to humans.

Asci and ascospores of pezizaPeziza domiciliana grows well on alkaline materials but can grow on anything that is porous and constantly moist such as wood, carpets, wallboard, furniture, fireplaces ashes, clothing, plaster, cement, sand, and coal dust. Mature Peziza domiciliana is a shiny yellowish tan inside and outside. Solitary cups are about 2 inches across or sometimes twice that. Often, a number of smaller, mutually compressed cups are found. These cup fungi have a rubbery texture and are large enough to pluck from carpets or baseboards with the fingers. If blown on with moist breath, spirals of faint puff of smoke composed of released ascospores can be seen.Chromelosporium

Information regarding toxicity of Peziza domiciliana is currently not available but it is believed to be non-toxic. There are no reports of adverse health effects. Allergenicity has not been studied.

References
The Fifth Kingdom Online

Filed Under: Fungi Tagged With: chromelosporium, cup fungus, domiciliana, mushroom, peziza

About the Author

Dr. Jackson Kung'u works for MBL, a laboratory that specializes in identification and enumeration of mold and bacteria commonly detected in air, fluids and bulk samples collected from homes, schools, offices, hospitals, industrial, agricultural, and other work environments. Jackson also provides a unique Mold Training Course on How to Recognize Indoor Mold, Develop Effective Sampling Strategies, Interpret Laboratory Results and how to Control Mold Growth.

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