. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 412. Sium latifolium. 413. Sium angustifolium.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, Worthington George, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve & Co.