秦艽组植物种子形态研究

Study on Seed Morphology of the Section Cruciata Gaudin

目的:探索秦艽组植物种子微形态特征,为其种类鉴别提供科学依据。方法:通过扫描电镜对甘肃不同产地不同种秦艽组植物种子进行观察分析。结果:该组植物的种子在形态、大小和纹饰等方面具有相对的一致性,但是小秦艽网胞明显宽于其它的几个种。结论:其种子超微结构特征可为秦艽组植物的鉴定提供新的资料。

Objective：To provide a scientific evidence for the identification of the section Cruciata Gaudin.Methods：Seed morphology of the section Cruciata Gaudin in different regions from Gansu were studied by means of scanning electronic microscopy（SEM）.Results：The seeds of section Cruciata Gaudin had relative conformability in terms of shape,size and ornamentation.But the reticulate cell of Gentiana dahurica was obviously wider than those of other species.Conclusion：This study provides some useful information for classification and identification of section Cruciata Gaudin.