ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  spore sac - organ containing or producing sporesreproductive structure - the parts of a plant involved in its reproduction macrosporangium, megasporangium - a plant structure that produces megaspores microsporangium - a plant structure that produces microspores eusporangium - a sporangium that arises from a group of epidermal cells leptosporangium - a sporangium formed from a single epidermal cell; characteristic of the Filicales or of almost all modern ferns tetrasporangium - a sporangium containing four asexual spores |
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