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Definition of Geastrum
1. Noun. Type genus of Geastraceae; fungi whose outer peridium when dry splits into starlike segments. 
Exact synonyms: Genus Geastrum
Generic synonyms: Fungus Genus
Group relationships: Family Geastraceae, Geastraceae
Generic synonyms: Fungus Genus
Group relationships: Family Geastraceae, Geastraceae



