London: Royal Botanic Gardens, 2001. Octavo, softcover.

Following the format of volume one, volume three includes Aerangis, Angraecum, Ascocentrum, Bletilla, Brassavola, Calanthe, Miltonia, Miltonioides, Miltoniopsis, Renanthera, Renantherella, Rhynchostyllis, Rossioglossum, Vanda and Vandopsis.