megasporangium


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meg·a·spo·ran·gi·um

 (mĕg′ə-spə-răn′jē-əm)
n. pl. meg·a·spo·ran·gi·a (-jē-ə)
A structure in which megaspores are formed.

megasporangium

(ˌmɛɡəspɔːˈrændʒɪəm)
n, pl -gia (-dʒɪə)
(Botany) the structure in certain spore-bearing plants in which the megaspores are formed: corresponds to the ovule in seed plants. Compare microsporangium
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.megasporangium - a plant structure that produces megasporesmegasporangium - a plant structure that produces megaspores
sporangium, spore case, spore sac - organ containing or producing spores
References in periodicals archive ?
Sporogenesis usually excludes discussion of megasporogenesis in the seed plants where resultant megaspores remain enclosed within surrounding tissues of the megasporangium (ovule) and, at least in angiosperms, lack an elaborate sporoderm.
Within the megasporangium located between the micropyle and nucellus, a megaspore mother cell undergoes meiosis, producing four megaspores.
megasporangium The structure in which megaspores are produced.