1. But it is of xeromorphic characteristic,and palisade tissue arrange in a circle under the epidermis in Reaumuria.
   红砂属植物的叶横切面呈扁圆形，栅栏组织呈环状排列于表皮之下;
2. Leaf structure of "Aquilaria sinensis" (Lour.) Gilg (Thymelaeaceae) observed under light microscope shows that the leaves are of typically bifacial exhibiting xeromorphic characters.
   摘要用石蜡切片法制片，光学显微镜观察，研究白木香叶的解剖结构。

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