Table 1.

Statistics of all gene regions for the southern African Combretaceae included in the study.

DNA regions	No. of seq	Seq length	K	Range inter	Mean inter (±SD)	Range intra	Mean intra (±SD)	Threshold (%)
rbcLa	152	552	4	0-0.09	0.009±0.012	0-0.08	0.002±0.009	0.04
matK	133	771	6	0-0.07	0.014±0.011	0-0.02	0.002±0.004	1.10
trnH-psbA	116	1034	3	0-0.15	0.047±0.035	0-0.03	0.003±0.007	1.80
nrITS	91	821	21	0-0.21	0.110±0.045	0-0.05	0.004±0.010	1.70
rbcLa+matK	129	1323	10	0-0.78	0.012±0.009	0-0.05	0.002±0.006	1.31
rbcLa+matK+trnH-psbA	87	2358	11	0-0.04	0.012±0.007	0-0.02	0.002±0.004	0.5
rbcLa+matK+nrITS	74	2144	9	0-0.04	0.011±0.006	0-0.02	0.002±0.004	0.70
rbcLa+matK+nrITS+trnH-psbA	70	3178	13	0-0.04	0.014±0.007	0-0.02	0.002±0.004	1.17