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植物研究 ›› 2005, Vol. 25 ›› Issue (3): 358-365.doi: 10.7525/j.issn.1673-5102.2005.03.025

• 论文 • 上一篇    下一篇

广东石门台自然保护区的蕨类植物区系分析

张荣京1,2, 邢福武1, 陈红锋1,2, 严岳鸿1,2, 韦强1   

  1. 1. 中国科学院华南植物园, 广州 510650;
    2. 中国科学院研究生院, 北京 100039
  • 收稿日期:2004-01-29 出版日期:2005-09-15 发布日期:2016-06-14
  • 作者简介:张荣京(1979-),男,硕士研究生,主要从事植物学研究工作。
  • 基金资助:
    广东英德市政府资助项目(20011106),香港嘉道理农场暨植物园资助项目

A study on the fern flora of Shimentai Natural Reserve, Guangdong, China

1,2   

  1. 1. South China Botanical Garden, the Chinese Academy of Sciences, Guangzhou 510650;
    2. Graduate Schoole of the Chinese Academy of Sciences, Beijing 100039
  • Received:2004-01-29 Online:2005-09-15 Published:2016-06-14

摘要: 通过野外调查和标本参考,广东英德石门台国家自然保护区蕨类植物区系共含47科, 96属, 293种。分析表明:(1)热带、亚热带分布性质的科为主(31科),占66.0%,非热带性分布科(16科),占34.4%。(2)热带、亚热带性质的属占优势(64属,占66.7%),其中泛热带分布属(24,25.0%)和热带亚洲分布属(19, 19.8%)是最重要的分布类型。世界分布属占26.4%,温带分布属很不明显,占7.3%。属的这种分布格局,显示出该区蕨类植物区系从热带成分向亚热带成分的渗透和过渡。(3)热带、亚热带分布种(139种)所占比例最大(47.4%),其中以热带亚洲性质的占优势(103, 35.2%);温带成分占较大的比例(34.1%)。种的分析结果与属的分析结果相差很大,出现区系相互渗透的现象。(4)在种的相似性比较上,与东部车八岭的相似性最高(38.5/59.2);与西部大瑶山种的相似性最低(21.5/35.6)。该区的蕨类植物区系与周围地区关系较为密切。

关键词: 蕨类植物区系, 区系分析, 分布区类型, 石门台自然保护区, 广东省

Abstract: Based on our survey and specimen examination, 293 ferns in 96 genera and 47 families are recorded in Shimentai Natural Reserve, Guangdong, China. A detailed floristic analysis shows: (1) The tropical and subtropical families are dominant (31 families), which constitute 66.0% of the total families, and the non-tropial familes(16 families) constitute 34.4% of total families. (2) The percentages of the tropic-subtropic, cosmopolitan and temperate genera in fern flora of Shimentai natural reserve are 66.7%, 26.4% and 7.3%, respectively. The pantropical genera (25.0%) and the tropical Asia genera (19.8%) are the most important types. The above distribution pattern reveals the transitiveness of the elements from tropical to subtropical. (3) The percentages of the tropic-subtropic, temperate, endemic to China, cosmopolitan and endemic to zone species in fern flora of this reserve are 47.4%, 34.1%, 13.7%, 3.8% and 1.0%, respectively. So it is very different from the analysis of the genera's distribution. And the floras are being in transitiving. (4) In the 5 areas, the genetic relationship of Shimentai Nature Reservation's ferns are intimate to HongKong's (70.4/82.8: Kjaccard/Krober), and are distant to Longqishan(58.7/74.9). Originally, the ferns of Shimentai Nature Reservation are ancient. And Shimentai area lies in the interface of south Asia subtropical and middle Asia subtropical floristic area.

Key words: pteridophyte flora, floristic analysis, areal-types, Guangdong Province