中国柽柳科植物叶解剖特征与分类关系的探讨

对分布于新疆的柽柳科植物叶的结构进行了比较观察，结果表明：水柏枝属叶为一般背腹叶，具湿中性特征；红砂属植物的叶横切面呈扁圆形，栅栏组织呈现状排列于表皮之下；柽柳属的叶与一般的背腹叶不同，栅栏组织位于远轴面，海绵组织位于近轴面。同时对叶的解剖结构与分类关系进行探讨，认为柽柳科植物的某些叶特征稳定且具类群特异性，在确定亲缘关系和分类方面具有重要意义。最后列出了柽柳科分属和柽柳属分种检索表。

THE DISCUSSIONS ON THE ANATOMICAL STRUCTURE OF LEAF AND ITS TAXONOMIC RELATIONSHIP OF TAMARICACEAE IN CHINA

In this paper,the investigations of the leaf anatomy in Tamaricaceae (about 3 genera,19 species) were made in Myricaria the structures of leaf are dorsiventral and are of mesomorphic.But it is of xeromorphic characteristic,and palisade tissue arrange in a circle under the epidermis in Reaumuria .Leaves of Tamarix are quite different from most of the dorsiventral leaves,the palisade tissue appear in the abaxial part and the spong tissue in the adaxial part,its are of xeromorphic structures.Based on the anatomy of leaf,we made a discussion on the taxonomic signification.The facts show that the anatomy characters of leaf play a important role in determining the kinship and systemic classification.Finaly,we list the key to the Tamaricaceae and Tamarix separately.