Containing 340 colour photos and 28 line drawings, this book provides comprehensive accounts of the history, nomenclature, and relationships of each of the 22 slipper orchid species and natural hybrids found within Vietnam. It provides the first detailed accounts of their habitats, biology and ecology, and highlights the imminent threat of extinction faced by many of them. Surveys non-orchid flora, and will enthrall the reader with descriptions of Vietnam and its unique environment, rich flora, and endemic plants.