关键词: 特有种, 特有现象中心, 特有性质, 山东

Abstract: Shandong province is situated in the eastern part of China. About 76 Species (including varieties and forms) of vascular plants are endemic to this province, among them 12 species belonging to genera and 5 families are pteridophyte, and 64 species belonging to 45 genera and 27 families are angiosperm. Most of the endemic species are neoendemics,while very few ones are palaeoendemics.Based on a careful analysis, some fundamental characteristics of the endemic flora of Shandong can be summerized as follows:1. The floristic elements are relatively not rich, however, it is still showing that the flora of Shandong has a special respect of itself.2. The geographical distribution is fairly uneven. All the endemic plants are dispersed in the middle-south mountains and the eastern peninsula, while no endemic plant in western and northern parts of the province, such as Heze, Jining, Liaocheng, Dezhou, Huimen and Dongyin. Four centers of endemism are clear to be Mt. Kunyu, Mt. Tat, Mt. Lao and Mt. Mead.3. The geographical elements are complex.

Key words: Endemic species, Center of endemism, Nature of endemics, Shandong