红柴胡调查中的新发现

A NEW DISCOVERY IN BUPLEURUM SCORZONERIFOLIUM INVESTIGATION

基于野外调查及形态学、解剖学、细胞学和植物化学的研究 ,在黑龙江省发现了一种新的柴胡属植物 ,该植物与红柴胡混生于草甸草原、灌丛和柞树林等群落之中 ,其不同于红柴胡的特点是 ,根黑色 ,根头稀具纤维 ,叶略宽 ;根中具木纤维群 ,叶下表皮下方无栅栏组织 ;染色体数目 2n =2 6或 2 0 ,具二型性 ;柴胡皂甙较多而挥发油较少。该植物与传统中药北柴胡相似 ,且分布广 ,数量大 。

A new Taxon of Bupleurum is discovered at Heilongji ang Province based on the wild investigation and morphological,anatomical,cytological and plant che mical studies. They grow with Bupleurum scorzonerifolium Willd,in the meadow ste ppe,bushwood and mongolica oak forest communities. But they are different from B .scorzonerifolium, such as the roots are black,no fibers at root crowns and t he l eaves more or less broad; there are some wood fiber groups in the root and no pa lisade parenchyma under lower epidermis of the leaf; the chromosome number is 2n =26 or 20 and showing bimodality; there are more saponins and less volatile oil. They are similar to the traditional Chinese medicinal drug B.chinense and h ave broad distribution and large amount. So they are a kind new of plant resource of Bupleurum in Heilongjiang Province. Their taxonomic name will be determined after more studies.