垂周壁

在光学显微镜下，紫苏属植物15份试材叶表皮细胞的形状呈不规则形、不规则多边形；表皮细胞的垂周壁样式呈较平直、浅波状、波状或深波状。

Under light microscopy ( LM ), the leaf epidermal cells of 15 samples of genus perilla are usually irregular or irregular polygonal in shape while their anticlinal wall patterns are often slightly straight , sinuolate , sinuous or sinuate .

于贝母表皮细胞垂周壁多波状弯曲。

The anticlinal wall of epidermic cell looks like waves .

B.表皮细胞为不规则形，垂周壁浅波纹状。基于叶下表皮微形态并结合植物外部形态特征，将直立扁蓄P。

Type 2 , the leaf epidermal cells are irregular in shape , with the undulate anticlinal walls .

垂周壁上具有纹孔的表皮细胞；

Epidermal cells with pitted anticlinal walls and finely striated cuticle ;

表皮细胞的形状为多边形或不规则形，垂周壁为平直弓形或波状弯曲；

The shapes of epidermal cells are multiangular and irregular .

表皮细胞为多边形，垂周壁平直弓形；

Type 1 , the leaf epidermal cells are polygonal in shape , with the straight to curved anticlinal walls ;

由于游离核之间出现了垂周壁，由一层胚乳游离核形成了一层无内切向壁的开放细胞。

Due to the anticlinal wall formation , a layer of free nuclei becomes a layer of open cells which lack the inner periclinal wall .

气孔器的某些特征，如气孔器大小、气孔器分布、气孔器类型等特征以及表皮细胞形状和垂周壁式样在种间有一定的差异。

Some stomatal apparatus characters such as size , type , distribution and shape of surface cells show more or less difference among the species .

对叶片的形态特征包括叶片下表皮气孔类型、保卫细胞和副卫细胞的特征、叶片两面的普通细胞（形状和垂周壁特征）和表皮毛进行了较详细的描述。

And ordinary cells ( in shape and anticlinal walls feature ) as well as the trichomes in both sides of the leaves are described in detail .

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 .

初始平周壁由自由生长垂周壁分支相接形成，及有丝分裂的细胞板形成。

The initial periclinal walls are formed by the meeting of branches of the freely growing walls and the cell plates . The sporoderm of Sphagnum contains perine , exine and intine .

白兰花被片挥发性香气的前体物在基本薄壁组织细胞中产生，通过扩散作用输送到表皮细胞，最后通过表皮细胞的垂周壁、表皮细胞的细胞间隙、气孔释放出来。

Predecessor of aroma was produced in basic parenchyma cells of perianth , transported to epidermis cells through dispersion and then emitted from the intercelluar space , anticlinal wall and stomata of epidermis cells .

其特征主要为：上表皮无气孔器，表皮细胞为不规则形五边形，垂周壁微弯曲，脉络为网格状，无毛基；

The epidermal characteristics are as follows : no stomata in upper epidermis , cells from irregularity to pentagon in shape , cell anticlinal walls slightly curved , venation cancellate , no trichome base ;

瘦果表皮细胞均有次生加厚：之一是表皮细胞垂周壁和平周壁极度加厚，凸起相互联接构成网状结构；

All the epidermal cells of achenes had secondary thickening . First of all , the vertical and the horizontal perines of epidermal cells thickened extremely and they protruded so as to interconnect as netted structure .