福建华安县木本植物区系分析

福建华安县木本植物区系组成丰富，共有869种5亚种类48变种8变型，隶属118科365属，其中引种栽培树种89种，隶属38科79属，它以热带性科属种为主体成分，表现山区系组成的古老特性，在同属于中国－日本森林植物亚区内，福建华安县与江西武功山和贵州荔波县在木本植物区系属的水平上具有很高的相似性，相似系数分别为88．2％和79．1％。；它在种的水平上表现为与江西武功山最为相近，其次为与武夷山、荔波县相近，然后与台湾相近，相似系分别为57．7％、49％、38．0％和33．8％，表明华安与这些地区在区系起源上的共同性和区系组成上的差异性。

The Analysis on Woody Flora of Hua

The woody flora of Hua'an County, Fujian Province, comprises 118 families, 365 genera, 869 species, 5 subspecies, 47 varieties, and 9 forms. Its main components belong to tropical distributional patterns with ancient species origin characteristics on all taxon level (family, genus and species). The woody flora of Hua'an was analysed and compared with those of Wugong Mountain in Jiangxi Province and of Libo County in Guizhou Province, since they all belong to the China Japan Forest Distribution Sub area, and its similarity indexes of mutual distributional genera to the late two are 88.2%, and 79.1% respectively. It also shares 375 species, 330 species and 324 species woody plants as well as with similarity indexes of 57.7%?43.9%?38.0% and 33.8% with floras of Wugong Mountain, Wuyushan Mountain, Libo County and Taiwan respectively, showing both their relative degrees of flora similarities and the feature of same flora genesis.