Zhu Dan, Qu Xincheng, Sun Xuemei, Yan Shihuan, Guo Hongwei, Li Yaoli
Guangxi Key Laboratory for Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, China.
Guangxi Institute of Chinese Medicine & Pharmaceutical Science, Nanning 530022, China.
Chin Herb Med. 2022 Sep 1;14(4):535-542. doi: 10.1016/j.chmed.2021.12.006. eCollection 2022 Oct.
Ban Fenghe recorded in the (Volume 1) is derived from the dried stems and leaves of . It is usually confused with medicinal herbs from and . However, they are very different in chemical composition, and should not be used as the same drug. To ensure their safety and efficacy, a method based on macroscopic and microscopic characteristics was developed to distinguish them.
A total of 14 batches of Ban Fenghe samples from three species were collected from different producing areas in China. The macroscopic characteristics were examined by observing external traits. The tissue structures of transverse sections of stems and leaves, the leaf epidermis, and the powder were observed microscopically.
The branchlets and leaf surfaces of and were hairy, especially the lower leaf surfaces of were densely covered with hairs, but those of were hairless. The pericyclic fibers of stems were intermittently distributed in a circular shape and accompanied by stone cells, whereas those of and were bundled without stone cells. So stone cells and hairs were present in powder, stone cells were not found in and powder, and hairs were not present in powder. The distribution sites, sizes and types of secretory tissues of these three species were also different in transverse sections of stems and leaves. Stomata on the lower epidermis of leaves were paracytic, whereas those of and were anomocytic.
Ban Fenghe drugs derived from could readily be distinguished from those of and by macroscopic and microscopic features.
《[具体文献]》（第一卷）中记载的半枫荷来源于[植物名称1]的干燥茎和叶。它常与[植物名称2]和[植物名称3]的药用部位混淆。然而，它们在化学成分上有很大差异，不应作为同一种药物使用。为确保其安全性和有效性，开发了一种基于宏观和微观特征的方法来区分它们。
从中国不同产地收集了来自三个物种的14批半枫荷样品。通过观察外部特征来检查宏观特征。在显微镜下观察茎和叶横切面的组织结构、叶表皮和粉末。
[植物名称2]和[植物名称3]的小枝和叶表面有毛，尤其是[植物名称2]的叶下表面密被毛，但[植物名称1]的则无毛。[植物名称1]茎的周维纤维呈环状间断分布并伴有石细胞，而[植物名称2]和[植物名称3]的周维纤维成束且无石细胞。因此，[植物名称1]的粉末中有石细胞和毛，[植物名称2]和[植物名称3]的粉末中未发现石细胞，[植物名称3]的粉末中无毛。这三个物种分泌组织的分布部位、大小和类型在茎和叶的横切面上也有所不同。[植物名称1]叶下表皮的气孔为平列型，而[植物名称2]和[植物名称3]的为不规则型。
通过宏观和微观特征可以很容易地将来源于[植物名称1]的半枫荷药材与[植物名称2]和[植物名称3]的区分开来。
