目的:通过对线叶龙胆的生药鉴定学研究,为不同产地线叶龙胆的生药鉴别与开发利用提供理论依据.方法:对线叶龙胆进行植物来源鉴定、药材性状鉴定、显微鉴别、理化鉴定.结果:不同产地供试药材均为同一种植物线叶龙胆,其药材性状无明显差别;全草粉末中均含有念珠状增厚的表皮细胞、非腺毛、花瓣乳头状细胞、花粉粒和花柱碎片;叶(花)表皮细胞多为矩形,排列整齐规则;经薄层色谱检测,药材提取物供试品与对照品在相同的位置上,显出相同颜色的荧光斑点.结论:不同产地线叶龙胆药材无明显差异,其粉末显微特征无明显差异,通过薄层色谱分析可知,不同产地的线叶龙胆中均含有龙胆苦苷、獐牙菜苦苷.%Objective: To provide theoretical evidence for pharmacognosy and development of narrowleaf gentian from different habitats through identifying pharmacognosy of narrowleaf gentian. Method: Origins, medicinal properties, microscopic identification, physical and chemical identification of narrowleaf gentian were distinguished. Result: Different samples are of narrowleaf gentian and there is no obvious difference; there are moniliform thickening epidermic cells, non-glandular hair, petals papillary cells, pollen grain and stylus bits in the powder of whole narrowleaf gentian; rectangular epidermic cells are found in the leaf and they lay orderly and regularly; fluorescent speckles in the same color are found in the same place of test samples and control ones tested with thin layer chro-matography. Conclusion: Narrowleaf gentian from different habitats and microscopic features of the powder suggest no remarkable difference. The results of thin layer chromatography demonstrate narrowleaf gentian from different habitats contain gentiopicrin and swertiamain.
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