Coniophora puteana

Wet rot, a reference photo
Photo: Zoltán Stekkelpak · CC0 1.0 (licence)

Coniophora puteana (commonly known as a cellar fungus) is a wet rot (specifically brown rot fungus belonging to the division Basidiomycota. It has the appearance of large brown patches surrounded by white edges typically found in humid areas on pine as well as hardwood.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Wet rot being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Classification

Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Coniophoraceae
Species
Coniophora puteana

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