穿心草的生药学鉴别

Pharmacognostic Identification of Canscora lucidissima

目的:对穿心草进行生药学鉴别。方法:分别对穿心草进行原植物形态鉴别、药材性状鉴别和显微鉴别。结果:穿心草药材茎多分枝,中空,淡棕黄色;叶多数穿茎。显微结构根外皮层、内皮层细胞巨大,常被径向分隔成多个子细胞,偶见石细胞;茎中空,双韧形,皮部有裂隙;叶上下表皮均有不等式气孔,细胞内常见砂晶、小针晶和小方晶等。结论:以上特征可为鉴别穿心草提供参考依据。

OBJECTIVE： To identify the pharmacognosy of Canscora lucidissima. METHODS： The morphologic feature, property and microscopic features of the original C. lucidissima were identified. RESULTS ： The stem of the C. lucidissima was found to be ramous, hollow and light yellowish-brown, and most of the leaves were intermingled with stems. Microscopically, the exoder- mises cells and the endodermis cells of the root were large, which were more often radially divided into multi-daughter cells, and stone cells were noted occasionally; the stem was hollow and bieollateral and crevasse was seen in cortex; inequality stoma were seen on both the upper epidermis and lower epidermis of the leaves; sandy crystal, small acicular crystal and prism, ete were often seen in the cells. CONCLUSION： The above features serve as references for the identification of C. lucidissima.