云南雕林山自然保护区蕨类植物区系地理的研究

A Study on the Floristic Phytogeography of Pteridophytes of Diaolin Mountain Natural Reserve, Yunnan

雕林山自然保护区的蕨类植物现知有25科、44属,80种.本文列出全部种类及其地理分布、并将属、种划分为15种分布区类型.根据地理成分分析.该蕨类植物区系具有4个区系特征:（1）具有热带亲缘关系;（2）与旧大陆其他地区的联系较广泛;（3）与喜马拉雅山地区的联系较密切;（4）是滇中高原蕨类植物区系较典型的缩影.

This paper deals with the pteridoflora of Diaolin Mountain Natural Re serve, which is situated in the center of Yunnan. 25 ° 12' 50' N and 101° 48' 20' E . Up to now. 25 familiees, 44 genera and 80 species of pteridophytes have been known from this mountain. In the present paper an enumeration of these species and their geo graphical distributions have been given, and the distribution patterns of genera and specie have been divided into 15 types. According to the result of analysis of geographical elements, this pteridoflora shows 4 floristic features: ( 1) It has affinities with that of tropics although it situated in the area of holarctic region; (2) It has wide relationships to those of Old World but very weak relationships to that of neotropical region; (3) It is much more closely allied to that of Himalaya than to that of E. Asia, especial Japan; ( 4) It is a typical miniature of pteridoflora of C. Yunnan.