Sclerenchyma is often found associated with vascular tissue and exists as two distinct types of cell: the long FIBER and the shorter SCLEREID.

厚壁组织由两种形式截然不同的细胞组成：较长的纤维和较短的石细胞。

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Reductions of cell wall thickness and birefringence were observed in both fiber (sclerenchyma) and parenchymal cells, together with blurring of the wall's layered structures.

厚壁细胞和薄壁细胞的细胞壁厚度减小，双折射也降低，并且细胞壁的分层现象变得不明显。

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