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内容記述 |
The authors examined telescopically the stems and leaves of "trees without grief" transplanted from India and Singapore, from the viewpoint of pharmacognosy, because the trees, Saraca indica L., are widely used for medicine, and they showed respectively the characteristic of epidermal system, fundamental tissue system and vascular bundle system. 1. Epidermal System: In stems it is composed of several tissues of oblong corkcells which are made flat through pressure, while in the both upper and lower sides of leaves, it is composed of tissues of cells, in one row, which are mutually adhered tight and are almost equally thick. In neither of upper and lower sides, it has no hair, and stomas are found only in the lower surface. In the outer surface of epidermis, the tissue of cuticle was found. 2. Fundamental Tissue System: The pitch of stems is made of parenchymatous cells, which contain starch grain. The palisade parenchyma of leaves are made of thin densely growing cells, and are found in the upper surfaces of leaves. The spongy tissue is found in their lower surfaces, where almost spheroids are thinly located, which contain elaioplast. The intercellular spaces which developed among cells are communicated with stomas. 3. Vascular Bundle System: In xylem of stems, there are the cells which contain vessels, ray and colour-contents. The parietals of vessels show pitted patterns. The vascular bundle system of leavs is wrapped by fiber cells, which are made in 2 to 4 tissues in the upper and lower sides of vascular bundles, and in the cells of phloems, elaioplast and starch grain are contained. |
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