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sporangium

A Dictionary of Biology | 2004 | Copyright

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

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

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.

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"sporangium." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

"sporangium." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O999-sporangium.html

"sporangium." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-sporangium.html

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sporangium

A Dictionary of Plant Sciences | 1998 | | Copyright

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

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MICHAEL ALLABY. "sporangium." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "sporangium." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O7-sporangium.html

MICHAEL ALLABY. "sporangium." A Dictionary of Plant Sciences. 1998. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-sporangium.html

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sporangium

A Dictionary of Earth Sciences | 1999 | | Copyright

sporangium See SPORE.

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AILSA ALLABY and MICHAEL ALLABY. "sporangium." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "sporangium." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O13-sporangium.html

AILSA ALLABY and MICHAEL ALLABY. "sporangium." A Dictionary of Earth Sciences. 1999. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-sporangium.html

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