Maarten Christenhusz is a botanist who has worked for the Finnish Museum of Natural History and the Royal Botanic Gardens, Kew. He is deputy editor of the Botanical Journal of the Linnean Society.
Mark Chase is a senior research scientist at the Royal Botanic Gardens, Kew. He co-edited Genera Orchidacearum and has contributed to more than 500 publications on plant science.
Tom Mirenda is the Director of Horticulture, Education and Outreach at the Hawaii Tropical Botanic Garden and the former Orchid Collection Specialist at the Smithsonian Institution, Washington. He frequently lectures on orchid ecology and conservation in the US and abroad, and is a columnist for Orchids, the magazine of the American Orchid Society.