鼠尾草属植物的二萜醌类化合物和它在分类上的意义

  本文用不同的化学方法分析研究了唇形科(Labiatae)鼠尾草属(Salvia)79 种植物根的二萜醌类化合物，其中38种植物含该类化合物。经查阅文献并联系 它们的外部形态(具能育雄蕊2，并呈丁字形等)、根部的组织构造和地理分布的 特点，我们初步认为：鼠尾草属(Salvia)从野芝麻亚科(Lamioideae)中分出，成立 鼠尾草亚科(salviodeae)比较合适：二萜醌类化合物可以反映鼠尾草属植物的 亲缘关系，并能作为种的化学分类特征；有些种需在组、系的归属上作适当的调整。     

垂盆草和狭叶垂盆草的比较研究

  The Chinese medicine “Chuipencao” is studied.  But, as a matter of fact, this Chinese name represents two distinct forms, one with broad leaves and the other with narrow leaves.  As a result of a comprehensive study on gross morphology, pollen mor- phology, histological structure, isozymes, GC analysis of chemical constituents of the plants in question has shown that the narrow-leafed form is different from the broad- leafed form and therefore is considered as a new species, Sedum angustifolium Z. B.Hu et X. L. Huang sp. nov.