Iain Darbyshire works in the Department of Accelerated Taxonomy at the Royal Botanic Gardens, Kew, specializing in Acanthaceae systematics and African plant diversity and conservation. Sophie Richards works in the Department of Accelerated Taxonomy at the Royal Botanic Gardens, Kew, specializing in conservation, biodiversity analyses, GIS, and extinction risk. Jo Osborne is the South Africa program officer for the Millennium Seed Bank Partnership team at Royal Botanic Gardens, Kew. Osborne is a botanist specializing in vegetation survey and plant identification, African plant diversity, conservation, and ethnobotany.