The Study Of Sympetalae (Except Compositae) Plant In Pamirs Of China

The Pamirs of China locate the southwest of Xinjiang which is a great mountain joint formed by Tianshan Mountain,Kunlun Mountain,Kelakunlun Mountain,and XingDuKu Mountain. It's position is remote and natural environment is very bad. In pamirs of China, Sympetalae(except Compositae) plants are much rich. In the paper, we systematically studied taxonomy of Sympetalae(except Compositae) plants, on its basis species diversity was analysed which including the trait of genera and species, life form and flora constitution character and so on. At the end the resource was apprasied and classfied. The research indicated that:About 19 families,68 genera,192 species and 4 variaties of Sympetalae(except Compositae) plant were recorded to occur in pamirs of Chian,repectively accounting for 79.2% of families,49.6% of genera and 34.8% of species in XinJiang. Among them, there are 4 new record families,21 new genera,74 new species and 4 new varieties on Pamirs of Xinjiang, 2 new species in Xinjiang.On the level of genus and species, the middle family was main part of Sympetalae (except Compositae) in pamirs of China. The proportion of oligotypic genus and monotypic genus were high. On the level of genus and species, they were chief members. 5 genera only distribute in Xinjiang in China, 3 species are endemic to Pamirs of Xinjiang, 10 species are endemic to Xinjiang, 7 species are endemic to China, 15 species only distribute in Pamirs in China and 64 species only distribute in Xinjiang in China. These species account for 51.6%.The composition of flora was extraordinary complex in Pamirs of China and the temperate quality was obvious and mostly of North temperate and abundant in old world temperate and a certain proportion of the tropic. Compared with neighborhood, on the level of family, it is the most similar to the south side of Tianshan mountains in Xinjiang, and on the level of genus and species, the similarity coefficient of west pamirs mountains with Pamirs of China was the tallest. In the plant life-form of Sympetalae (except Compositae) plants , hemicryptoyte plant was main as high as 58.3%.Sympetalae (except Compositae) plant resources were rich in the area, many species had important value in medicine,viewing and olein. The article provided basic science information for lucubrating how to protect biology diversity and utilize plant resource in Pamirs of China.