The rare and endangered plants of Shaanxi Province for ex situ conservation in Xi^an Botanical Garden
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Abstract:
The geological distribution and characteristics of Shaanxi provincial rare and endangered plants were introduced. Especially the study on the ex situ conservation in Xi^an Botanical Garden was discussed. The growth and development of the 31 sorts of rare and endangered plants were evaluated and the conservation methods for these plants were proposed.Keywords:
Ex situ conservation
Botanical garden
In situ conservation
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Flora
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According to incomplete statistics, there are about 52 rare and endangered species in Chongqing, comparing to China, the proportion is 13%. According to different principles, there are 3 pteridophyte species and 14 gymnosperm species and 35 angiosperm species; 5 first-protection species and 23 second-protection species and 24 third-protection species; 5 endangered species and 22 rare species and 25 threatened species among 52 species. Comparing to China, there proportion are 23.1%, 19.7%, 11.5%, 62.5%, 14.5%, 10.8%; 4.1%, 20.0%, 15.9%, respectively. Chongqing also owns 28 rare and endangered species that will be published in a short time.
Pteridophyte
Rare species
Gymnosperm
Umbrella species
Vulnerable species
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The composition and basic characters of Pingyuan Flora in Guangdong are reported. The flora is rich in plant species, numbering up to 182 families, 589 genera and 1154 species of wild vascular plants, many of which are ancient, rare and endangered plants. The geogrophic elements of the flora are complex, and the tropic-subtropic element is dominant. The flora is part of the Palaetropic Flora.
Flora
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A comprehensive compilation is provided of the medicinal plants of the Southeast Asian country of Myanmar (formerly Burma). This contribution, containing 123 families, 367 genera, and 472 species, was compiled from earlier treatments, monographs, books, and pamphlets, with some medicinal uses and preparations translated from Burmese to English. The entry for each species includes the Latin binomial, author(s), common Myanmar and English names, range, medicinal uses and preparations, and additional notes. Of the 472 species, 63 or 13% of them have been assessed for conservation status and are listed in the IUCN Red List of Threatened Species (IUCN 2017). Two species are listed as Extinct in the Wild, four as Threatened (two Endangered, two Vulnerable), two as Near Threatened, 48 Least Concerned, and seven Data Deficient. Botanic gardens worldwide hold 444 species (94%) within their living collections, while 28 species (6%) are not found any botanic garden. Preserving the traditional knowledge of Myanmar healers contributes to Target 13 of the Global Strategy for Plant Conservation.
Data deficient
Burmese
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Ornamental plant
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208 species of scale insects collected from forest trees and garden plants in Zhejiang Province were listed, which belong to 12 families and 93 genera. Some of them are injurious pest.
Scale insect
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Genus Pseudotsuga L. is one of the important taxa exhibited the disjunct distributionof Eastern Asia-Eastern North America. China has 5 endemic species and all of them have been listed as the second-grade protect plants of the country. This paper based on the yield investigation of Pseudotsuga sinensis Dode and Pseudotsuga forrestii Craib in Yunnan of China, probes into their current status of the populations and natural regeneration, the local uses and the possible endangered factors in the province. The strategies on conservation and utilization of the species have also been proposed.
Disjunct
Germ plasm
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124 species (including varieties) in 55 genera of compositae were found in the Houhe National Nature Reserve. The result of investigation and analysis on the species showed that the majority of the flora belong to temperate component. There were 53 genera and 121 species of medicine plants, accunting for 96.4% and 97.6% respectively of the total compositae plants. Most species in composita were medicine resources plants and should be exploited appropriately.
Flora
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According to the Name List of National Protected Wild Plant (Part I) passed by Chinese State Department and based on our field surveys and studies for many years, the distribution and present status of 19 species and 2 varieties of National Protected Wild Plants in Shaanxi Province were reported in the present paper. Among these plants, 4 species and 2 varieties are of first protective grade and 15 species are of second protective grade. The protective countermeasure of National Protected Wild Plants in Shaanxi Province was also put forward.
Countermeasure
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