sporangium

n. sac in which spoors develop (Botany)

A sporangium (pl., sporangia) is a plant or fungal structure producing and containing spores. Sporangia occur on angiosperms, gymnosperms, ferns, fern allies, bryophytes, algae, and fungi. Their spores are sometimes called sporangiospores.Microsporangia are the structures on the stamens of flowers called anthers, and the pollen-producing structures on the microsporophylls of male conifer cones. Megasporangia are the comparable "female" structures on these plants, associated with the flower carpel and the megasporangial cone.
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Sporangium /spo·ran·gi·um/ pl. sporan´gia any encystment containing spores or sporelike bodies, as in certain fungi. spo·ran·gi·um n. pl. [more]Sporangium - Community and Resources

Noun
1. organ containing or producing spores
(synonym) spore case, spore sac
(hypernym) reproductive structure
(hyponym) megasporangium, macrosporangium

n. sporangium