Wild Orchid Plant Resources Of Jiangxi Province Floristic Composition And Characteristics

By way of field survey in recent few years, and combined with the massive specimens and the literature. This article carried on a more exhaustive analysis to the kinds of the germplasm resources of the wild orchidaceous plants in Jiangxi province, and the resources reserves, the geographic distribution pattern, the types of flora. And study on wild Orchidaceae distribution of new varieties and species. The date was calculated on the distance analysis and cluster analysis by SPSS 18.0, and compared the area of orchid resources concentrated and the relationship of orchids between Jiangxi and other 6 provinces around Jiangxi Province. This paper The aim of this paper was to protect wild orchids provided management and provide sustainable data to support and theoretical basis. Results are as follows.There were 149 orchid species, belonging to 58 genera in Jiangxi Province, in which terrestrial were dominant with 90 species to 35 genera, and 17 species to 49 genera for epiphytic and 10 species to 9 genera for saprophytic.The Calanthe graciliflora f. jiangxiensis is new varieties, Sedirea, Zeuxine, Aphyaorchis and Gastrochilus is the distribution of new genera; Amitostigma pinguiculum, Aphyaorchis simplex, Collabium formosanum, Goodyera viridiflora, G. yangmeishanensis, Z. goodyeroide, Dendrobium lohohense, D. wilsonii, D. shixingense, Cymbidium macrorhizon, Gastrochilus nanus and Sedirea subparishii is the distribution of 14 new species. Orchids are widely distributed in Jiangxi Province, to considerated the numbers as a reference, orchid plants in Luoxiaoshanmo, Nanling Mountains, Wuyi Mountains are more concentrated in the horizontal distribution, and the distribution were mainly above the 500-1200 m in the vertical.The wild orchidaceous plants in Jiangxi province comprise 149 orchid species, belonging to 58 genera, have three kinds of life types:terrestrial, epiphytic and saprophytic, in which terrestrial were dominant with 91 species to 36 genera, and 49 species to 17 genera for epiphytic and 9 species to 6 genera for saprophytic.The component of the orchid flora in Jiangxi is complex, altogether has 13 distribution patterns. The genera belonging to tropics component separately occupy 63.8 percent to the overall genera, Which illuminate that the orchid flora in Jiangxi belong to tropics nature.Cymbidium, Liparis, Bulbophyllum, Goodyera, Calanthe, Habenaria, Dendrobium and Platanthera is an important part of Jiangxi. The single species is the largest proportion,44.8% of total genera. The proportion of monotypic genera in total genera was 44.8%, which was accounted the largest proportion, was the young derivatives area. It can be seen from the vertical distribution that orchid species showed a strong tropical elements in low altitude and showed the subtropical and temperate in high altitude.The result of cluster analysis showed that Jinggangshan, QiYunshan and Jiulianshan clustered into one group; Lushan Sanqingshan and Guangshan clustered into other group, Wuyishan clustered into another single group; And have closed relationship with Fujian among the six provinces, Hunan, Anhui, Hubei and Zhejiang clustered into one group, Guangdong clustered into another single group.