The mature embryo sac contain an egg apparatus, a central cell, many spherical crystalline body liked starch grains, the antipodal cells and many nucellar cell remain firstly and disappeared at last.

 
  • 成熟胚囊包括卵器,一个中央细胞,反足细胞与珠心核在胚囊初期存在而最终消失解体。
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