Flower of Empire

In 1837, while charting the Amazonian country of Guiana for Great Britain, German naturalist Robert Schomburgk discovered an astounding "vegetable wonder"--a huge water lily whose leaves were five or six feet across and whose flowers were dazzlingly white. In England, a horticultural nation with a mania for gardens and flowers, news of the discovery sparked a race to bring a live specimen back, an...