Simple ovary, the placentation is brink.The ovules are campylotropous.The ovule is bitegmic and crassinucellate.The megaspore archesporium is initiated from sub-epidermis of nucellus.
摘要矮沙冬青子房单
1
，边缘胎座，弯生胚珠，胚珠具双珠被、厚珠。
词条纠错
X
megaspore
n. 大孢子,(种子植物
)胚囊
)胚囊声明：以
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geophone, geophoto, geophotogrammetry, geophysical, geophysicist, geophysics, geophyte, geoplagiotropic, Geoplane, geopolitic,
相似单词
megasil, megasoma, megasome, Megaspaera, megasporangium, megaspore, megasporocyte, megasporogenesis, megasporophyll, megass,
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