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Kew Gardens is a botanic garden in southwest London. Founded in 1840, its living collections include some 27,000 taxa while the herbarium houses over 8.5 million preserved plant and fungal specimens. This photograph shows the Davies Alpine House, which opened in 2006. The design of the greenhouse encourages natural airflow, the automatically operated blinds prevent overheating, and the glass is of a special type that allows maximum transmission of ultraviolet light. The structure houses a collection of alpine plants that grow above the tree line in their localities of origin.Photograph credit: Daniel Case