| Generic short diagnoses: Small puff-balls, with subterranean development, found in xeric habitats, without subgleba, during maturation they turn over so that they open where they originally were attached to a hyphal cord. Outer peridium may persist as a low positioned collar. |

| Illustration and © Thomas Læssøe Sweden | 
| Illustration and © Thomas Læssøe Sweden, TL-5328 |
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