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

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.