This book provides an introduction to the Australian and New Zealand wild orchid genus Bulbophyllum and the rather diverse group of vandaceous orchids of the subtribe Aeridinae. 18 of the 29 Bulbophyllum are presented with text descriptions and colour photographs and both the New zealand reprasentatives are also covered. The Australian and New Zealand subtribe Aeridinae genera are covered with a text description for each genus with all publishing details provided accompanied by at least one reprasentative species with a text description and colour photographs. At the back of the book 2 new vandaceous genera are proposed viz. Arachnopapua and Newzealochilus and one new species of Taeniophyllum. Observations are made in the genera Biermannia, Chroniochilus and Pennilabium alliances with Chroniochilus and Pennilabium merged into Biermannia.