于贝母表皮细胞垂周壁多波状弯曲。
表皮细胞和保卫细胞的长轴方向与叶脉走向一致，垂周壁平直或波形；
Epidermis cells and long axis of guard cells tend towards the same direction of venation.
该属两种叶表皮形态基本一致：表皮细胞为不规则的狭长形，垂周壁波状；
The form of frond epidermis of S. grevilleoides and S. albofusca bring into correspondence with each other: the epidermis cells are irregular narrow strip with sinuous anticlinal walls;
结果表明，表皮细胞形状、垂周壁式样及气孔器类型具有重要的分类学意义。
We found that the shape of the epidermal cells, the pattern of anticlinal walls and the types of stomatal apparatuses have much taxonomic importance within the genus.
结果表明，表皮细胞形状、垂周壁式样及气孔器类型具有重要的分类学意义。
We found that the shape of the epidermal cells, the pattern of anticlinal walls and the types of stomatal apparatuses have much taxonomic importance within the genus.
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