The ovule is of anatropous, simple integument and tenuinucellus.
胚珠为倒生型，具单珠被和薄珠心。
Each anatropous ovule contains two layers of integuments namelyexternal integument and secondine.
倒生胚珠具有二层珠被，内珠被形成珠孔。
Alangium chinense Harms is apical placentation.The ovule is anatropous, unitegmic and crassinucellar.
八角枫为顶生胎座, 倒生胚珠, 单珠被。
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