1. The ovules are hemitropous, with 2 integuments, tenuinucellate and the archesporial cell functions directly as the mega-spore mother cell. 胚珠是半球形的，有2个被膜，腱鞘状，而原孢子细胞直接作为大孢子母细胞起作用。
2. The micropyle is formed with inner integuments and partial outer integument. 珠孔由内珠被和腹侧外珠被构成。
3. Most angiosperm ovules possess two integuments, while gymnosperms usually have only one. 大多数被子植物的胚珠有两层珠被，而裸子植物通常只有一层。
4. Results The differences of the configurations and integuments between benign and malignant neoplasns were significant. 结果 良、恶性的形态、包膜及内部回声有明显差异。
5. There is no starch in the nucellus, integuments and the antipodal cells, the persistent synergid contains a large amount of starch. 珠心、珠被、反足细胞都不含淀粉。 宿存助细胞具丰富的淀粉。
