Banks, Joseph 1744-1820. British naturalist and explorer. He accompanied Capt James Cook on his voyage round the world 1768-71 and brought back 3,600 plants, 1,400 of them never before classified. A founder and unofficial first director of the Botanical Gardens, Kew, he was president of the Royal Society from 1778 to 1819. The Banksia genus of shrubs is named after him.