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Robert Brown |
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Brown, Robert
Born Dec. 21, 1773, in Montrose; died June 10, 1858, in London. English botanist. Brown’s morphological and embryological investigations had great significance in constructing a natural system of plants. Brown discovered the embryo sac in the ovule and showed (1825) that the ovules of conifers and Cycadaceae are not enclosed in the ovary, by which he established the principal distinction between angiosperms and gymno-sperms; he discovered archegonia in the ovules of conifers. He was the first to describe accurately the nucleus of plant cells. He discovered Brownian movement in 1827. REFERENCEFarmer, J. B. “Robert Brown: 1773-1858.” In Makers of British Botany…. Edited by F. W. Oliver. Cambridge, 1913. Pages 108-25.Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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