湖北省荆门荆山余脉种子植物区系研究

Study on the Seed Plant Flora of Jingshan Mountain Extension in Jingmen City,Hubei Province

摘要: 对湖北省荆门荆山余脉种子植物区系进行了统计分析。结果表明:(1)物种多样性丰富,共有野生种子植物128科、576属、1226种;(2)优势科、属明显;(3)分布区类型多样,地理成分复杂;(4)温带性质明显,热带成分丰富,与热带植物区系有较高的亲缘关系,并表现出一定的过渡性;(5)区划上属于华东植物地区。

Abstract: In this paper,some statistics and comparatively intensive analysis on native seed plants of Jingshan mountain extension in Jingmen City,Hubei Province,are carried out.The results are as follows:(1) It is abundant in species,with(1226) species of native seed plants which belong to 576 genera and 128 families;(2) Dominant family and genus phenomenon is obvious;(3) The types of distribution are various and geographical elements are complex;(4) The flora is of an obvious temperate feature.Tropical elements are plentiful with comparatively high affinity-relationship to tropical flora.It shows some transitional natures from tropic to temperate;and(5) The flora belongs to East China flora.