摘要
经野外调查和资料分析整理,确定南京城市森林共有野生蕨类植物25科36属63种(含变种),主要科为鳞毛蕨科、金星蕨科、蹄盖蕨科、铁角蕨科,主要属为铁角蕨属、鳞毛蕨属、复叶耳蕨属、贯众属。分布区类型在科的等级上,以热带成分占一定主导地位,在属的等级上,热带成分较温带成分占优势,表明南京城市森林的蕨类植物具有较强的从热带向亚热带、温带过渡的特性。在种的水平上,有超过一半的物种是东亚分布成分,表明该区蕨类植物区系地理成分属于东亚植物区系。特有成分相对匮乏,有一定的原始性。
Based on the field investigations and analyzing as well as referring to the related data, the flora of pteridophyte in Nanjing urban forest is studied. The pteridophytic flora of Nanjing urban forest is composed of 63 species （including varieties）, belonging to 36 genera and 25 families. The representative families are Dryopteridaceae, Thelypteridaceae, Athyriaceae, As- pleniaceae. The main genera are Asplenium, Dryopteris, Arachniodes, Crytomium. The top families distribution types are tropical ones, and the tropical types outweigh the temperate and cosmopolitan ones in terms of the genera distribution types, which shows that the pteridophyte flora in Nanjing Urban Forest is featured as a rather strong transition from tropical, subtropi- cal to warm temperate. In terms of the species distribution types, the East-Asia type occupies half of the species, which shows that the pteridophyte resources belong to the East-Asia flora. The Endemic to China ingredients are relatively scarce, but with certain originality.
出处
《金陵科技学院学报》
2017年第4期71-74,共4页
Journal of Jinling Institute of Technology
基金
常熟市科技发展计划项目(CN201710)
关键词
南京城市森林
蕨类植物
区系
统计分析
Nanjing urban forest
pteridophyte
flora
statistical analysis
