湖南兰科植物4新记录种--兼论湖南兰科植物的调查与保护

摘要

Four new records of Orchidaceae from Hunan are reported, Apostasia ramifera S. C. Chen et K. Y. Lang、Eria sinica (Lindl.) Lindl.、Gastrodia albidoides Y. H. Tan&T. C. Hsu were collected from The Jiulongjiang National Forest Park in Rucheng County and Galeola faberi Roife was collected from Daweishan National Forest Park in Liuyang County. Apostasia is a new genus in Hunan province. The voucher specimens are preserved in CSFI. The distribution area of the four species of Orchidaceae newly discovered in Hunan are all have a larger span, it has a important value on the floristic studies of Orchidaceae. Orchidaceae is the essence of the forest, with a rich species diversity. But many species only have a tiny population, needing high requirementsin on the ecological environment. The Orchidaceae basically were raised in a primeval forest or on the rock suiface which were undisturbed. It is particularly important to protect the habitat of Orchidaceae. In this paper, we discussed the investigation and protection of orchidaceae in Hunan.%报道了湖南兰科4新记录种，分别为采自汝城九龙江国家森林公园的多枝拟兰Apostasia ramifera S. C. Chen et K. Y. Lang、小毛兰Eria sinica (Lindl.) Lindl.、拟白赤箭Gastrodia albidoides Y. H. Tan&T. C. Hsu和采自浏阳大围山的山珊瑚Galeola faberi Roife，其中拟兰属为湖南省新记录属。凭证标本保存于中南林业科技大学植物标本室(CSFI)。湖南省新发现的4种兰科植物，分布区域跨度均较大，在兰科植物区系研究上，有较大价值。兰科植物是森林中的精华，种类虽多，但很多种居群极小，对生态环境要求高，基本上都生长于未受干扰的原生林下或石壁上，因此兰科植物的生境保护显得尤为重要，对湖南兰科植物的调查和保护进行了探讨。