The thesis have reported firstly the embryological charactercampylotropous, and there are endothelium Without hypostase. micropyle is long, formed by inner integument only.
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美
- 摘要厚皮香大孢子与雌配子体形成特徵首次报导如下：双珠被，薄珠心，珠孔为内珠被构成，弯生胚珠，有珠被绒毡层；
