| Generic short diagnoses: Nest-like fruitbodies with internal grey to black, lentiform, egg-like structures (peridioles), with a complex wall structure and within which the basidia are found. |
Cyathus olla - DK: glat redesvamp, UK: Field Bird's Nest |
 | Illustration and © Jens H. Petersen Denmark, JHP-92.289 |
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