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You are here: Home / Mold / Sick And Tired Of Peziza domiciliana (Domicile cup fungus)?

Sick And Tired Of Peziza domiciliana (Domicile cup fungus)?

Peziza domiciliana– Domicile carpet cup fungus - Mold Testing and Bacteria Testing
<em>Peziza domiciliana<em>

Peziza domiciliana, variously referred to as domicile cup fungus, peziza mushroom and Peziza fungus among other names, is a common household fungus that grows in indoor environment. It is usually associated with water-damaged buildings. “Domiciliana” means “around the house”. It is 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.

Appearance of Peziza domiciliana

Peziza domiciliana appears as yellowish to brownish cup shaped, mushroom-like structures with a central depression, a short stalk and a rubbery texture. The older the specimen the flatter they get and are normally 2-10 cm in diameter. The yellowish to brownish mushroom-like structures produce spores in microscopic sac-like structures called ascii. The spores are forcibly released and may be seen as a thin powdery cloud when the cup shaped structures (fruiting bodies) are disturbed.

Health Effects of Peziza domiciliana

peziza-asci-ascospores - Mold Testing and Bacteria Testing
Asci and Ascospores of Peziza

Peziza domiciliana is currently not known to be poisonous, but it is considered inedible due to its rubbery texture. No information is available regarding health effects, toxicity, or allergenicity to humans. Whether the spores (ascospores) causes allergic reactions in humans is not known either. However, the spores of many fungi potentially can cause respiratory problems in susceptible individuals.

How to get rid of Peziza domiciliana in a house

Luckily, Peziza does not destroy wood although often incorrectly identified as dry rot fungus, Serpula lacrymans. While it is not difficult to remove, merely plucking off the cups (fruiting bodies) or applying bleach may not get rid of it since the bulk of the growth is likely embedded in the material it is growing on. Peziza thrives in damp conditions and hence a useful indicator of moisture problems. To get rid of Peziza domiciliana, eliminate the source of water and it will rapidly die.

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Dr Jackson Kung'u

Dr. Jackson Kung’u is a Microbiologist who has specialized in the field of mycology (the study of moulds and yeasts). He is a member of the Mycological Society of America. He graduated from the University of Kent at Canterbury, UK, with a Masters degree in Fungal Technology and a PhD in Microbiology. He has published several research papers in international scientific journals. Jackson has analyzed thousands of mould samples from across Canada. He also regularly teaches a course on how to recognize mould, perform effective sampling and interpret laboratory results. Jackson provides how-to advice on mould and bacteria issues. Get more information about indoor mould and bacteria at www.drjacksonkungu.com.
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Latest posts by Dr Jackson Kung'u (see all)

  • Is Slime Mold Harmful to Humans? - April 21, 2023
  • Sick And Tired Of Peziza domiciliana (Domicile cup fungus)? - October 16, 2022
  • Indoor Mold Short Video - May 18, 2022

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Filed Under: Mold Tagged With: peziza, slime mold

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Peziza domiciliana– Domicile carpet cup fungus

Sick And Tired Of Peziza domiciliana (Domicile cup fungus)?

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