Timothy L. Fitzgerald, Jonathan J. Powell, Katharina Schneebeli, M. Mandy Hsia, Donald M. Gardiner, Jennifer N. Bragg, C. Lynne McIntyre, John M. Manners, Mick Ayliffe, Michelle Watt, John P. Vogel, Robert J. Henry, Kemal Kazan
Ann Bot. 2015 Apr; 115(5): 717–731. Published online 2015 Mar 25. doi: 10.1093/aob/mcv010