]> Botany Example of Name Published: Berula angustifolia Mertens & W.D.J.Koch, Deutschl. Fl. (Mertens & W. D. J. Koch), ed. 3. 2: 433. 1826 Mertens, Franz Karl & Koch, Wilhelm Daniel Joseph Mertens, Franz Karl & Koch, Wilhelm Daniel Joseph F. K. Mertens & W. D. J. Koch Mert. & W.D.J.Koch Mertens & W. D. J. Koch Karl Franz Mertens & Wilhelm Daniel Joseph Koch