In Acorus both upper and lower epidermis cells are rectangle or rhombus, and the stomata apparatus are paracytic and arrange in rows along the veins.
菖蒲属叶上下表皮特征基本一致，细胞形状为长方形或近菱形，气孔器平列型，成纵行与叶脉平行排列；
The cells of upper epidermis are often papillae.
叶上表皮细胞常呈乳突状。
The bulliform cells were situated in groove of upper epidermis facing the main vein.
正对主脉的上表皮凹陷处均有泡状细胞。
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