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作 者 ：徐养鹏

期 刊 ：武汉植物学研究 1992年 10卷 3期 页码：261-264

关键词：蕨类植物；区系；类型；

Keywords:Ferns, Flora, Type,

摘 要 ：本文论述了秦岭蕨类植物水平分布与这一地区森林分布格局是一致的,垂直分布以太白山分为4个带谱,其中以海拔800—2600米带谱内的,蕨类属种最多,约占秦岭总种数的32%。在秦岭77属中,属于热带、亚热带的属有36属,约占秦岭总属数的46.9%,其中有17个属每属仅有1种,其余每属有2—3种,均分布于秦岭南坡,这说明秦岭南坡是热带、亚热带蕨类植物分布的北缘。通过秦岭蕨类植物地理成分分析,说明秦岭蕨类植物属于喜马拉雅、中国西南到日本的蕨类植物区系,以耳蕨与鳞毛蕨为特色,称谓“耳蕨—鳞毛蕨区系”。

Abstract:The horizontal distribution patherns of ferns frequently correspond to those of the forests in Qinling. The vertical distribution on the northern slope of Taibaishan can be divided into 4 altitudinal belts, among which the belt at elevation of 800—2600m is the region where the most species of ferns exist. Among 77 genera of ferns in the Qinling, 36 genera are tropical and subtropical genera, and occupy 46.9 percent of the whole genera. Among them, there are 17 genera and each is represented by only 1 species. The others include 2—3 species distributed on southern slope of the Qinling. The above figures indicate that the southern slope is northern margin of subtropical region. The fact proves that the fern group of the Qinling mountains can be considered as the same fern flora of Himalaya. The fern flora of S. -W. -China to Japan has been named as "Polysticho-Dryopteris flora"

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