中英▼

  • The indusium is absent.

    不存在胚被。

    youdao

  • The indusium is absent. The annulus is transverse and complete, and consists of about 18 thickened cells.

    环带横列于孢子囊的上部，完全，单排细胞，细胞数目约为18个。

    youdao

  • The indusium is absent. The annulus is transverse and complete, and consists of about 18 thickened cells.

    环带横列于孢子囊的上部，完全，单排细胞，细胞数目约为18个。

    youdao

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