Botany: General

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megaspore

A Dictionary of Plant Sciences | 1998 | | Copyright

megaspore The larger of two kinds of spore produced by heterosporous ferns, or the first cell of the female gametophyte generation of such ferns and seed plants (angiosperms and gymnosperms). In angiosperms, it is one of 4 haploid cells formed from a megasporocyte during meiosis, the other 3 degenerating. The megaspore of angiosperms divides to produce the female gametophyte (embryo sac).

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

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

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

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megaspore

A Dictionary of Biology | 2004 | Copyright

megaspore See megaspore mother cell; sporophyll.

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"megaspore." A Dictionary of Biology. 2004. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

"megaspore." A Dictionary of Biology. 2004. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O6-megaspore.html

"megaspore." A Dictionary of Biology. 2004. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-megaspore.html

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megaspore

A Dictionary of Earth Sciences | 1999 | | Copyright

megaspore See SPORE.

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

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

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

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Free newspaper and magazine articles

	Ornamentation of Isoetes (isoetaceae, Lycophyta) microspores.(marsh plant) Magazine article from: The Botanical Review; 10/1/2002
	Notes on the Natural History and Reproductive Biology of Isoetes... Magazine article from: American Fern Journal; 10/1/2010
	Female gametophyte and seed development in Musella lasiocarpa (Musaceae), a... Magazine article from: Canadian Journal of Botany; 10/1/2007