湖北省湿地维管植物区系研究

Study on the Flora of Vascular Plants of Wetland in Hubei Province

湖北省湿地维管植物有96科337属1009种,其中蕨类植物22科30属41种,种子植物74科307属968种,主要是由草本植物组成,科、属的优势现象明显。分布区类型多样,在科级水平上有8个类型和2个变型,在属级水平上有13个类型和12个变型,在种级水平上有13个类型和5个变型,表明该区系地理成分复杂,与其他区系联系广泛;温带成分占微弱优势,反映出该区系从热带到温带过渡的区系特点;世界分布成分多为建群种和优势种;特有属、种贫乏,说明湿地植被的隐域性。

There are 1009 species of vascular plants which belongs to 337 genera in 96 families, including Pteridophytes （41 species,30 genera and 22 families） and spermatophytes （968 species,307 genera and 74 families） in wetland of Hubei province. This flora is mainly composed of herbage and the phenomena of preponderant families and genera are obviously. The distribution area types of this flora were abundant. For species level, there were 15 distribution area types and 5 sub-types, for genus level, there were 13 distribution area types and 12 sub-types, and for family level, there were 8 distribution area types and 2 subtypes. This is proved that the flora with complicated geographic distribution and extensive connection with other flora. Comparing with tropical elements, the temperate elements occupy only slightly predominance, which reflect the character of the flora transferring from tropical to temperate. The cosmopolitan components are constructive and dominant elements in the flora which reflects the intrazonal nature of the flora.