摘要
Recent field expeditions in Langbiang Plateau of southern Vietnam resulted in new data for the orchid flora of Vietnam. Two new species (Nervilia pubilabia and Panisea sagittata), two new national records (Cheirostylis tortilacinia and Goodyera reticulata) and the rediscovery of a supposedly extinct species (Liparis nana) are reported, and background data about their morphology, biogeography, ecology, conservation and taxonomy are also provided.