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本文报道了对引进日本席草品种“冈山三号”和“伊索拉米”（）地上茎的比较解剖与质量分析研究结果．根据比较解剖，二者都具有大量发达的纤维．有聚集成束的，也有分布于维管束中的．组成较大纤维束的纤维细胞则相互缠绕成束．有限维束成内、中、外三层排列在基本组织细胞中．仅在茎长、粗、颜色、气孔数、基本组织厚度及茎基髓部直径大小等方面存在一定的差异．茎秆中的大量机械组织使支撑能力增加．发达的气腔和髓部为植物提供了良好的通气条件，并加强了茎的弹性和耐压力．并认为茎尖部分枯梢的产生与该处缺乏输导组织有关，且常因开花而使茎秆成为无效草．
This paper reports the results of comparative anatomy and mass analysis of the aerial stems imported from Japan to study the “Okayama No. 3” and “Isolami” (). According to comparative anatomy, both have a large number of developed fibers. There are gathered into bundles, but also distributed in the vascular bundle. Fibrous cells that make up larger bundles are intertwined into bundles. Finite dimensional beam into the inner, outer three arranged in the basic tissue cells. Only in the stem length, thickness, color, stomatal number, the thickness of the basic tissue and the size of stem-based medullary diameter, there are some differences. Large amounts of mechanical tissue in the stalk increase supportability. Well-developed air pockets and pith provide plants with good aeration and enhance stem flexibility and pressure resistance. And that the tip of the shoot tip of the production of the Department and the lack of tissue at this guide, and often because of flowering and make stalks invalid grass.