| Generic short diagnoses: Small, pulvinate gasteroid fungi with a thin, outer, evanescent skin with simple clamped hyphae, and an inner mass of one to several egg-like structures (peridioles) within which the basidia are formed. The basidia often become thick-walled and pigmented. |

| Illustration and © Jens H. Petersen Denmark, JHP-09.440 | 
| Illustration and © Jens H. Petersen Denmark, JHP-09.440 | 
| Illustration and © Jens H. Petersen Finland, JHP-96.087 |
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