London: Royal Botanic Gardens, 1995. Octavo, softcover

Split into three parts, part 1 is an alphabetical list of all names, part 2 lists genera ordered by accepted names, and part 3 lists plants by country of origin. Genera covered include Cattleya, Cypripedium, Laelia, Paphiopedilum, Pleione, Sophronitis, Constantia, Paraphalaenopsis and Sophronitella.