湖北林业科技

Hubei is one of the provinces that is abundant in Dryopteris in China. It was found by investigation and analysis that the distribution of the genus changes along with the vegetation of forest. The horizontal distribution of the genus changes obviously along with the longitude, distribute most concentratedlly in the west Hubei mountain and hill vegetation region and the southwest Hubei mountain vegetation region, it increases from this region to the east of Sichuan along the west and it reduces obviously to the eastward; the water and heat are abundant along with the decrease of latitude, the species increase from north to south step by step, and the species are the most abundant in southwest of Hubei; the geographical distribution of the genus has regional significance.