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单词 megagametophyte
释义 megagametophyte Bot.|mɛgəgæˈmiːtəʊfaɪt|
[f. mega- + gametophyte (s.v. gamete).]
A gametophyte that develops from a megaspore; a female gametophyte.
1933Amer. Jrnl. Bot. XX. 217 (heading) Morphology of the megagametophyte and the embryo sporophyte of Isoetes lithophila.1964H. J. Dittmer Phylogeny & Form Plant Kingdom xxi. 487 A single megagametophyte may contain several archegonia with ripe eggs.
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