中国复叶耳蕨属的分类研究

1828年荷兰植物学家Blume在他的《瓜哇植物简志》(Enum.P1.Jav.)中,根据Arachniodes aspidiodes Blume这个种,建立了复叶耳蕨属Arachnicdes,但一直未被各国植物学家所承认。我国蕨类植物专家秦仁昌教授1934年对本群蕨类植物的生活习性、外部形态和分枝图式等,进行了深入细致的研究,证明了它是一个自然类群,并指出了在系统分类上介于耳蕨属Polystichum Roth和鳞毛旅属Dryopteris Adans之间,当时他把本群植物(包括毛枝旅属Leptorumchra H. Ito和假复叶耳蔗属Acrorumo-hra H.Ito的一些种)归入了分布在大洋洲和非洲的Rumchra Raddi属中。

THE TAXONOMY OF ARACHNIODES BL.IN CHINA

Restored as a distinct genus in 1961 by Tindale, the fern genus Arachniodes D1. has so far not yet been monographically studied, its exacte rande of distribution and total number of species remaining unknown in the world. From the Asian main-land including Taiwan province of China and Japan the confu-ssed genus has recently been revised by prof. R. C. Ching and the present author and, as a result, there are 116 species, thus constituting a medium--sized genus of the family Dryopteridaceae with Polystichun and Dryopteris being the largest genera each, represented by more than 200 species in the world. Taxonomically, the genus is rather difficult to deal with because great majority of the species are more or less similar in the degree of division of lamina, shape of ultimate pinnules, type of serrature, and form and color of scales on stipe and rachis. The classification scheme proposed in the present paper is based upon about 130 species of the genus from Asia and may serve as well the classification of a few species from extra-asi-atic regions.