The Royal Botanic Garden, Kew, and The Uppsala Botanical Garden, London, possess the most important collections of species of the genus Saintpaulia.
Ms. Mather during her visit to the Royal Botanic Garden, Kew in August 1980
Photos: © Mather Family
Collection of species of the genus Saintpaulia of Uppsala Botanical Garden - 2009
Photos: © Dale Martins