Dendrobium is horticulturally the most significant orchid genus of New Guinea. Together with the three closely related genera Cadetia, Diplocaulobium, and Flickingeria it is the subject of this CD-ROM, which was written and compiled by Mr. André Schuiteman and Dr. Ed de Vogel of the Nationaal Herbarium Nederland, Leiden branch (formerly known as the Rijksherbarium), in co-operation with the Royal Botanic Gardens, Kew, and the Royal Botanic Garden, Edinburgh. This CD-ROM contains about 3000 images, 29 generic and sectional descriptions, a database covering some 560 species, tools for identification, a hyperlinked, richly illustrated glossary with over 550 terms, notes on cultivation, and much more; in short: the largest collection of data on New Guinea Dendrobiinae ever assembled. It is the second volume in a planned series, which will eventually cover all the orchid genera and species of New Guinea, and, ultimately, all Southeast Asia. Treating one of the most attractive of all orchid groups, with superb pictures supplied by dozens of first rate photographers, this CD-ROM should be in the collection of every amateur interested in these plants. It is also a must for professionals who deal with conservation, cultivation, taxonomy, etc., of Southeast Asian orchids.