Molecular analyses suggest a need for a significant rearrangement of Rutaceae subfamilies and a minor reassessment of species relationships within Flindersia

DNA sequencing has been used to construct two molecular phylogenies at the intra-family and intrageneric level within the Rutaceae. Analysis of trnL-t rnF sequence data for five Rutaceae subfamilies has shown that there is no molecular support for the current subfamily classifications within the Ruta ceae. The Dictyolomatoideae and Spathelioideae belong to a clade separate f rom the clades containing the remaining Rutaceae subfamilies. Rutoideae and Citroideae do not form discrete clades which suggests a reassessment of th e subfamily classification is necessary, particularly as Ruta falls within the majority Citroideae clade. Flindersioideae forms a clads within the Rut aceae and does not form a separate family or form a clade with Meliaceae. Sequencing of 17 Flindersia species produces a similar phylogeny to that pr oposed by other authors using morphological methods with two exceptions. Th e molecular phylogeny indicates F. amboinensis is associated with F. fourni eri and F. laevicarpa and, in addition, F: oppositifolia and F. pimentelian a were found to be genetically identical.