Plants and Animals
Botany
Botany: General
sporangium

sporangium

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views updated Jun 11 2018

spo·ran·gi·um / spəˈranjēəm/ • n. (pl. -gi·a / -jēə/ ) Bot. (in ferns and lower plants) a receptacle in which asexual spores are formed.DERIVATIVES: spo·ran·gi·al / -jēəl/ adj.

The Oxford Pocket Dictionary of Current English

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sporangium

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views updated Jun 11 2018

sporangium (pl. sporangia) A reproductive structure in plants that produces asexual spores. A megasporangium produces megaspores, which give rise to the female gametophyte; in seed plants it is represented by the ovule. A microsporangium produces microspores, which give rise to the male gametophyte; it is represented in seed plants by the pollen sac. See also sporophyll.

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sporangium

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views updated Jun 27 2018

sporangium A sac-like structure within which fungal spores are formed; spores are liberated on rupture of the sporangium wall.

A Dictionary of Plant Sciences MICHAEL ALLABY

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sporangium

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views updated May 08 2018

sporangium See SPORE.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

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