The Genera of Orchidaceae in Hong Kong is a handy reference for both amateurs and professional botanists in Asia who wish to enter the field of modern orchidology. Orchid appreciation is an art deeply rooted in Asian cultures. But in 1977, when this book was first published, orchidology as a science was new to people there. The technical vocabulary was unfamiliar and the subject matter difficult to understand. Therefore, this volume was intended as a general, easy-to-use reference book, with illustrations of the basic structure of orchids and their habit and habitat clearly described in Chapter I.

The book may also be used as a self-help guide for naturalists and gardeners in Hong Kong who wish to identify an orchid new to them. In Chapter II, keys, descriptions, and illustrations are given to allow the reader to look up and gain information about individual orchid species. Chapter III provides an analysis of the composition and an interpretation of the phytogeographic significance of the Orchidaceae in Hong Kong. Finally, Chapter IV helps the reader to understand and remember the Latinized names of orchids by providing an explanation on the origin and meaning of the generic names.

This book is a facsimile reprint of the 1977 edition, which was published at a time when no comprehensive account of the genera of the orchids of Hong Kong had ever been attempted. Even after many decades, this volume remains the essential reference on orchid species growing in Hong Kong. This commemorative edition features a new foreword and a chronology of Professor Hu's major life events.