复叶耳蕨属分类研究综述  

A Review on the Taxonomy of the Genus Arachniodes Bl. (Dryopteridaceae)

作　　者：何海[1] 

机构地区：[1]重庆师范大学生物系

出　　处：《重庆师范学院学报（自然科学版）》2003年第3期42-47,共6页Journal of Chongqing Normal University(Natural Science Edition)

基　　金：国家重点基础研究发展规划项目(G2000046802 05)。

摘　　要：复叶耳蕨属是鳞毛蕨科中的一个重要的属,在其近一个半世纪的研究历史中,它的拉丁属名经历了数次变更,属的形态界定逐步明确,尽管仍然存在一定的争议,但本属概念已经得到广泛接受。文中评价了该属的主要的分类性状,其主要依据根状茎习性和叶柄基部鳞片特征,将本属分为4个组,并编制了分组检索表。过去,该属的种类描述相当混乱,文献中已经存在180多个种名,但估计种数约有近70个,绝大部分种类分布在中国长江流域及以南各省区和日本。本属的近期研究文献也以中国和日本为多,中国的研究主要集中在新种描述和植物志的编写方面;日本学者对本属的研究则是多方面的。作者认为,今后应加强对中国和日本标本的比较研究,并运用细胞学和分子生物学手段,逐步澄清种类的混乱,建立一个本属的自然分类系统。The genus Arachniodes Bl. plays a central role in the family Dryopteridaceae in that it shares some important characters of both Dryopteris Adans. and Polystichum Roth, the two largest genera of the family. Since it was created in 1828, its generic name had experienced several changes in one and a halfcentury′s studies before it was recognized in 1961. The morphological circumscription of the genus has been gradually developed since then. To date its generic concept has general acceptance though some discrepancies do exist. In this article, the some diagnostic characters are evaluated. Mainly based on the habit of rhizomes and the scales on the base of the stipes, the genus is subdivided into four sections, to which the key is made accordingly. It is quite confused in the genus for species description. By estimate there are ca. 70 species worldwide though more than 180 species names are documented in references; and there is little doubt that most species occur in southern China and Japan. Most recent research literatures are out of Chinese and Japanese pteridologists. The Chinese literatures are dominated by description of new taxa and by compilation of floras, while studies of the Japanese pteridologists are widely diversified. Future studies should intensify the comparison of specimens collected from China and Japan and apply cytological and/or molecular methods to clarify species and to establish a natural taxonomic system of the genus.

关 键 词：复叶耳蕨属 植物分类学 鳞毛蕨科 分类性状 习性 鳞片特征 形态特征 

分 类 号：Q949.365[生物学—植物学]