Peziza arvernensis

Species of fungus

Peziza arvernensis, commonly known as the boring brown cup fungus or fairy tub, is a species of apothecial fungus belonging to the family Pezizaceae. This fungus appears as brown cups, often in small groups, on soil in broad-leaved woodland, especially with beech. The ascocarps can grow quite large, up to 10 cm across. This species is widespread in Europe with a few records from North and South America.

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