megasporangium

meg·a·spo·ran·gi·um

M0200000 (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

Thesaurus

Noun

megasporangium - a plant structure that produces megasporesmacrosporangiumsporangium, spore case, spore sac - organ containing or producing spores

Megasporangium

megasporangium

[¦meg·ə·spə′ran·jē·əm] (botany) macrosporangium

Megasporangium

in heterosporous Pteridophyta and in seed plants, the organ in which one or several megaspores develop. Megasporangia are found singly in the axils of sporophylls (in Selaginella), on the sporophyll in a special cavity (in Isoetes), or inside sporocarps (in the order Hydropteridales). In seed plants the nucellus—the central part of the ovule—is homologous to the megasporangium.

megasporangium

macrosporangium

the organ where MEGASPORES are formed, which in flowering plants is the OVULE.

megasporangium

noun

Synonyms for megasporangium

noun a plant structure that produces megaspores

Synonyms

macrosporangium

Related Words

sporangium
spore case
spore sac

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