The oil-cells can be found in all genera examined. Endodermis contains one layer of cells whose wall usually developing U-shaped thickening.
中皮层均有油细胞分布;内皮层均由一层细胞构成,大多数具U-形增厚。
参考来源 - 国产姜科28种植物根解剖结构分析及其系统学意义·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N the specialized innermost layer of cortex in roots and some stems, which controls the passage of water and dissolved substances between the cortex and stele 内皮层 [botany]
The endodermis had clear Casparian strips on its cells.
其内皮层细胞上凯氏带明显。
The inner layer of the cortex differentiates into the endodermis.
皮层的内层分化为内皮层。
Stele the vascular tissue and associated parenchyma tissue and (if present) the surrounding pericycle and endodermis of a stem or root.
包括根或茎的维管组织及相关薄壁组织，若有维管束鞘和内皮包被则这二者也属于中柱结构。
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