Coelogyne is a large genus of Asiatic orchids widely distributed from India and Sri Lanka across southern Asia and the Malaya Archipelago to the Philippines, New Guinea and the south-west Pacific Islands. The genus, as currently conceived, comprises some 190 species, two subspecies and 12 varieties. This account, the first for over 90 years since that of Pfitzer and Kraenzlin (1907), attempts to summarise all of the available information on the genus. The author re-assesses sectional limits, and provides keys to the sections, species and infraspecific taxa. Distribution maps are provided for each section. He also provides a comprehensive account of each species that includes a full description, distribution, habitat, altitudinal range, flowering time and taxonomic notes. Most of the species are illustrated by one or more colour photographs and a black-and-white line drawing of the lip, a critical feature in the genus, is provided for almost every species. Most orchid growers have at least one Coelogyne in their collection. This book will certainly whet readers' appetites for more of these beautiful orchids. The author provides detailed information on how to grow coelogynes and on their hybridisation, based on his extensive experience cultivating them in his own collection.