| megasporangium |
the larger of the two kinds of sporangia produced in the sexual life cycle of a heterosporous plant. Produces megaspores.
Ãâó: www.anbg.gov.au/glossary/webpubl/fernglos.htm
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| megaspore |
the larger of the two kinds of spores produced in the sexual life cycle of a heterosporous plant, giving rise to the female gametophyte. They may be monomorphic as in Selaginella, or polymorphic as in some Isoetes species. cf. microspore.
Ãâó: www.anbg.gov.au/glossary/webpubl/fernglos.htm
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| megacephaly |
Unusually large head.
Ãâó: www.bdid.com/termsm.htm
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| megagametophyte |
The female gametophyte which is the embryo sac in angiosperms.
Ãâó: www.botanyvt.com/pages/dictionary.shtml
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| megaspore |
A haploid cell that develops into a female gametophyte.
Ãâó: www.botanyvt.com/pages/dictionary.shtml
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