Studies On The Taxonomy Of Brassicaceae On The Pamirs Of China

The China Pamirs plateau (36.7°-39.8°N, 73.5°-76.5°E) is situated at the southwest of Xinjiang. This area is a mountain joint formed by Tianshan Mountain, Kunlun Mountain, Karakorum Mountain and XingDuku Mountain. Summer is dry, winter is cold. In this article, taxonomy of Brassicaceae plants in this area was studied, species diversity, life form, and flora of this taxa were evaluated. The results were shown that:I. There were 35genera 71 species Brassicaceae plants in the Pamirs of China, including, 9 genera, 24 species Chinese Pamirs new record, and 4 species Xinjiang new record (Draba winterbottomii, Arabis tibetica, Solms-Laubachia pulcherrima, Sisymbrium orientale).II. There were 19 Monotypic genera (19 species), 6 Oligotypic genera (34 species), and 2 Multitypic genera (18 species). Monotypic genera and Oligotypic genera accounted for 94.29% and 74.65% of total genera and species of Brassicaceae in Pamirs of China, including, the China endemic species was 1 kind. The China Pamirs endemic species was 2 kinds. The Chinese Xinjiang unique distribution species was 12 kinds. The Chinese Pamirs unique distribution species was 5 kinds.III. In the Pamirs of China, Brassicaceae plants were distributed to 7 areal-types and 7 variable types. The temperate was a dominant ingredient. Among them, Central Asia is high.IV. The perennis herb occupied dominant position, followed by annus herb, biennial plants, and shrub in turn.V. In this area, Brassicaceae plants were of important edible, raiseing, and medicinal value.