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神农架维管植物区系初步研究

A PRELIMINARY STUDY ON THE FLORA OF VASCULAR PLANTS IN SHENNONGJIA,CHINA

  • 摘要: 本文为神农架维管植物区系的初步研究结果,扼要报道了本区系现知的2638种(包括种下等级),分隶193科850属;粗略分析了850属的分布区类型,表明本区系以温带分布特别是北温带分布为主要成份的性质;介绍了本区系一些主要的古老属种,世界单种属47属,在中国为单种属的有33属,分布于该地区的中国特有属43属及中国列入珍稀保护植物49种。通过对木本植物的统计(有99科290属1103种,其中乔木属128属),显示出该地区是中国北温带木本植物,特别是乔木属种最丰富的地区之一。

     

    Abstract: This paper is a summary account of the study on the flora of vascular plants in Shennongjia. The results show:1. Up to now, 2638 species and infraspecific taxa belonging to 850 genera and 193 families are known;2. Based on analysing the areal types of 850 genera, the temperate, especially the north temperate elements are dominant of the floristic composition;3. Many ancient and relic elements are conserved in the area, such as Osmunda, Pteroceltis, Bretschneidera, Tetracentron, Emmenopterys, etc.;4. There are 47 monotypic genera and 33 genera of single-species in China, 43 genera endemic to China, 49 species of rare and protected plants in China;5. The woody plants comprise 1103 species( including subspecies and varieties) in 290 genera and 99 families. Among them, 128 genera are trees.The conditions above indicate that Shennongjia is more abundant in vascular plants and, it can be recognized as a typical area of the Chinese temperate flora.

     

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