John C. Manning is Senior Specialist Scientist in the Compton Herbarium, South African National Biodiversity Institute, Kirstenbosch. Although he has studied the anatomy, embryology and seed development of plants in diverse families, including the Fabaceae, Proteaceae and Stilbaceae, he has focused his research more recently on the Iridaceae, collaborating on various research projects with Peter Goldblatt. Together they have investigated the evolution and pollination biology of the African genus Lapeirousia and the systematics, pollination systems and evolution of Gladiolus in southern Africa. John and Peter have coauthored several books, including Gladiolus in Southern Africa and various wildflower guides to the southern African flora, the most recent of which was Wildflowers of the Fairest Cape (Redroof Design and Timber Press, 2000). John is also an accomplished botanical artist and photographer; his drawings have been published in numerous books and scientific journals. Peter Goldblatt is a leading expert on the iris family, having spent his life studying its taxonomy, evolution, and biology. He is currently Senior Curator at the Missouri Botanical Garden in St. Louis. A native of South Africa, Peter was educated at the University of the Witwatersrand and earned his Ph.D. from the University of Cape Town in 1970. He spent forty years studying irises in South Africa, Kenya, Malawi, Zambia, Tanzania, Namibia, and Madagascar. In 1999 he was awarded the International Bulb Society's Herbert Medal. Author of many papers, Peter has written several books, including The Moraeas of Southern Africa (1996), The Genus Watsonia (1989), The Woody Iridaceae (1993), Gladiolus in Tropical Africa (1996), and Gladiolus in Southern Africa (1998). Goldblatt and John C. Manning are coauthors of The Color Encyclopedia of Cape Bulbs ( 2002) and Crocosmia and Chasmanthe (2004). In his spare time, Peter enjoys reading and traveling. Dee Snijman is a research scientist at Kirstenbosch. Snijman was awarded the Herbert Medal for her contribution to the knowledge of plants in the amaryllis family. She resides in South Africa.