傣药四种钩藤藤茎的显微鉴别

Comparison of Rattan Microscopic Characteristics of Four Dai Medicinal Materials from Uncaria Genus

目的:为白钩藤、大叶钩藤、攀茎钩藤、平滑钩藤4种植物藤茎的显微鉴别提供依据。方法:观察样品石蜡切片和粉末制片的显微特征。结果:4种钩藤藤茎的显微比较可以从有无木栓形成层、皮层有无中柱鞘、韧皮部中纤维束和石细胞的存在位置等方面进行区别。粉末鉴定主要依据梯纹导管的有无、草酸钙方晶的有无以及石细胞的多少等特征加以区别。结论:藤茎的显微特征可为4种钩藤属植物的鉴定提供参考。

Objective： To establish microscopic identification standards for four species from Uncaria genus. Methods： The microscopic characteristics of transvers section and powder of these four species rattan were observed. Results ： As for these four species from Uncaria genus, the microscopic identification of rattan transvers section could be made by the existence of cork cambium and pericycle in the cortex, and the location of phloem fiber and stone cells, while the powder identification could be made according to the existence of scalariform vessel and calcium oxalate crystal, and the quantity of stone cells. Conclusion：The microscopic characteristics of rattan can provide information for identification of these four species from Uncaria genus.