-First publication of its kind for the region-Comprehensive guide to all 693 tree genera of New Guinea -Written by Kew experts -Scientifically accurate descriptions for each genus given, accompanied by extensive colour photographs and line drawings -Each group has a family description and key to the New Guinea tree genera, followed by a description of each genus, notes on taxonomy, distribution, ecology and diagnostic characters-Features keys and family/generic descriptions for family circumscriptions previously unrecognised-Content organised using Angiosperm Phylogeny Group 3 classification system-Essential companion to anyone studying or working in the region, including botanists, conservation workers, ecologists and zoologists