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In this paper, the varieties and origin of Primulaceae plants that used in Tibetan medicine were analyzed. The results showed that there were 3 genera and 44 species (including the varieties) of Primulaceae plants were recorded in the relevant literatures. Among them, 17 varieties were recorded in Tibetan names, 24 varieties were recorded in Chinese names and 1 variety was used in both of them. In current quality criteria of standards at all levels in China country, 6 varieties were recorded in Tibetan names and 6 original plants were involved, which were 35% and 14% of them respectively. Seventeen varieties were recorded in Chinese name and 7 original plants were involved, which were 30% and 16% of them respectively. In Tibetan medicine standards and literatures, there were big differences between Tibetan names and Chinese names which were translated from Tibetan names and its original plants. There were only regulations of morphological identification and microscopic authentication, so the standards were very inadequate. Therefore, through literatures research, resources and current situation investigations, combining the research and specification of the name and original of Tibetan medicine, the level of normalization and standardization could be enhanced, the stable and controllable safety and utility in clinical medication could be ensured to promote advancement of industry technology Tibetan medicine.

The resource of Sinopodophyllum emodi in Tibet, Qinghai, Gansu, Sichuan and Yunnan province were surveyed by the ways of documents, interview, quadrat and market investigation. The results indicated that S. emodi were mainly distributed in central part from Taibai Shan of Shanxi province along the middle and high mountain on either side of Hengduan mountain which from north to south and in Tibetan plateau of China, the suitable eco-environment of S. emodi was dominated by valleys, wet forests and low bush-woods vegetation which comparatively dry on plateau with the altitude focused on 1 5004 500 meters, and the distribution density of simple alpine meadow was relatively lower. Illumination, water, soil, temperature and altitude had significant influences on the growth, distribution and reserves of S. emodi from different angles. In recent years, there was sharp increase of market requirement in Xiaoyelian (fruit) which were used in Tibetan medicine and the underground part which was used for the extraction of podophyllotoxin, excess collection of the underground part was the primary cause of the rapid decreasing resource of S. emodi. It is suggested that the management of rational collection should be strengthen and the development of culturing and production should be meanwhile accelerated.