Recently, the reporter learned from the Chengdu Institute of biology of the Chinese Academy of Sciences that during the second scientific investigation and Research on the Qinghai Tibet Plateau, scientific researchers discovered the extremely endangered plant, Euonymus cuspidatus, which has been "missing" for a hundred years, on the south slope of Gongga Mountain in the eastern edge of the Qinghai Tibet plateau where the ecological environment is constantly improving. In order to ensure the accuracy of scientific research, scientific researchers carefully observed the number of sepals, petals, stamens and other key information affecting the classification of plants in the field and drew a scientific hand-painted map for them; After the field scientific research, the molecular genetic information of the plant samples and the morphological similar prickly leaf groove valve samples were further compared. Finally, it was confirmed that the plant was Euonymus cuspidatum. In 1908, the British botanist Wilson collected three specimens of Euonymus cuspidatus in the fruit stage in Western Sichuan. No one found this species for more than 110 years. Through this discovery, the scientific researchers first described and clarified the flower characteristics of the sharp tooth spear, and filled and corrected a number of attribute information. Relevant research results and papers have also recently been published in phytokeys, an International Journal of plant taxonomy. According to the classification and criteria of the International Union for the conservation of nature (2022) red list, the spear is assessed as extremely endangered. At present, scientific researchers are trying to collect and preserve germplasm resources and introduce the plant in the botanical garden. (the picture shows the flowers, fruits and leaves of Euonymus cuspidatus (taken on August 10, 2021) in the field.) (the picture shows Hu Jun observing the specimen with a magnifying glass (taken on August 17) (the picture shows the plant of Euonymus cuspidatus (taken on August 10, 2021) in the field.) (the picture shows the blade of the lancet taken in the field (taken on August 10, 2021.) (the picture shows Hu Jun looking at the flowers and fruits of Euonymus cuspidatum in his office.) (the picture shows Hu Jun looking up specimens in the specimen Library of Chengdu Institute of biology, Chinese Academy of Sciences.) (the picture shows Hu Jun's collection of spears.) (news agency)
Edit：Li Jialang Responsible editor：Mu Mu
Source：chinanews.com
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