Preliminary study on flora of seed plants of vegetation in Mt. Yuanbaoshan,Guangxi,China

Mt.Yuanbaoshan is located in the north of Guangxi(109°7'～109°13' E,25°22'～25°32' N).The flora of seed plants of vegetation in Mt.Yuanbaoshan consists of 118 families,337 genera,732 species.Based on the analysis of the florisctic elements,four main conclusions were showed as follows:(1)On the family level and genus level,the flora shows an obvious subtropical floristic connection.Temperate elements interweave with tropic elements,this is a typical characteristic of subtropical mountain.(2)The main components of this flora of vegetation are Pantropic,Tropical Asia,North Temperate,East Asia North America disjuncted and East Asia.(3)There are many relict,ancient,endemic plant class group in the vegetation of Mt.Yuanbaoshan,these all have important conservation value.(4)The abundant Gymnosperm and varied coniferous forest types is the prominent characteristic of vegetation in Mt.Yuanbaoshan.