Dendrobiums have many different habitats which has resulted in an extremely diverse group of plants with a multitude of plant forms featuring interesting, exquisite, colourful flowers. Part 1 of this book explores the classification, conservation, evolution, biology and ecology, traditional use and cultivation of this group in scientifically accurate but readily understandable terms. Part 2 describes and illustrates in colour 411 species, including the most horticulturally popular species, and some rarely seen but spectacular plants. 189 New Guinea species are illustrated.