Otidea bufonia
Otidea bufonia is a species of apothecial fungus belonging to the family Pyronemataceae. This is a rare European species occurring singly or in small groups on soil in woodland. The fruit body appears from late summer to early autumn as a dark brown, deep cup, split down one side, up to  high and the same across. References

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Fungi described in 1822
Pyronemataceae
Taxa named by Christiaan Hendrik Persoon