]> Botany Prance, Ghillean ('Iain') Tolmie, Schaller, George Beals & Becker, M. Prance, Ghillean ('Iain') Tolmie, Schaller, George Beals & Becker, M. G. T. Prance, G. B. Schaller & M. Becker Prance, G. T., Schaller, G. B. & Becker, M. Ghillean ('Iain') Tolmie Prance, George Beals Schaller & M. Becker