Henslow, John Stevens (hĕnzˈlō) [key], 1796–1861, English botanist. He was professor of mineralogy (1822–27) and of botany (1827–61) at Cambridge. Henslow was a teacher and friend of Charles Darwin, whom he recommended as naturalist to the Beagle expedition. He wrote on scientific farming and also A Catalogue of British Plants (1829) and Dictionary of Botanical Terms (1857).
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