Genera Orchidacearum is the first monograph of the world's orchid genera that reflects their long evolutionary history and reveals relationships based on geneal

A comprehensive discussion of the vegetative anatomy of orchids, describing the structure and relationships among the cells and tissues of leaves, stems, and ro

For many years orchids have been among the most popular of ornamental plants, with thousands of species and hybrids cultivated worldwide for the diversity, beau

“Clear, informative text. It is a superb production, reminding us of the astonishing diversity of these plants.” —Times Literary Supplement One in every s

This book documents Willi Hennig's founding of phylogenetic systematics and the relevancy of his work for the future of cladistics.