There were 2 illustrations found for M. Isaac-Williams
163498 Bulbophyllum bicolor Lindl.W. Curtis, Bot. Mag., ser. 2, vol. 27(): : t. 691 (2010) [M. Isaac-Williams]
163343 Bulbophyllum ambrosia (Hance) Schltr.W. Curtis, Bot. Mag., ser. 2, vol. 31(): : t. 797 (2014) [M. Isaac-Williams]