湖北产八角莲属3种植物的解剖学研究

THE ANATOMICAL STUDY ON THREE SPECIES OF DYSOSMA IN HUBEI PROVINCE

摘要: 报道了湖北产八角莲属(Dysosma)3种植物八角莲(D.versipellis)、小八角莲(D.difformis)和乌云伞(D.lichuanensis)的根、根茎、茎和叶的显微构造特点。茎部构造不同于一般双子叶植物的茎,近皮层有8─22个大小不等外韧维管束排列成环状,而髓内又有3─6个内轮维管束。整个茎轮廓类似于单子叶植物的散生维管柱(中柱).根、根茎及叶的构造类似于一般双子叶植物。本研究为开发和利用湖北产八角莲属药用植物资源提供鉴别依据。

Abstract: The anatomical structure of three species of Dysosma in Hubei Province has been reported in this paper.The character of stem was found to be something different from that of dicotyledonous.There are 8-22 collateral bundles of various size around the cortex as well as 3-6 accessary bundles at the center of the pith.However,the structure of root,rootstock and leaf is analogous to that of the dicotyledon.These results are thought to be usefull to identify Dysosma especially when they are utilized as traditional Chinese medicines.