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