 One of Dr. Ward's correspondents was William Jackson Hooker, later director of the Royal Botanic Gardens, Kew.Hooker's son Joseph Dalton Hooker was one of the first plant explorers to use the new Wardian cases, when he shipped live plants back to England from New Zealand in 1841, during the pioneering voyage of HMS "Erebus" that circumnavigated Antarctica.Wardian cases soon became features of stylish drawing rooms in Western Europe and the United States.