Douglas E. Soltis, Robert K. Kuzoff, Mark E. Mort, Michael Zanis, Mark Fishbein, Larry Hufford, Jason Koontz, Mary K. Arroyo, Elucidating Deep-Level Phylogenetic Relationships in Saxifragaceae Using Sequences for Six Chloroplastic and Nuclear DNA Regions, Annals of the Missouri Botanical Garden, Vol. 88, No. 4 (Autumn, 2001), pp. 669-693
No takes yet. Share an insight, caveat, or question.
Soltis et al. (2001) studied this question.