Mari indicated that the RI for the third position increased with added taxa. Parsimony jackknifing is an efficient method for analyzing large data sets. The rbc L data are highly structured and provide a surprisingly well resolved tree. Adding more taxa did not lead to loss of resolution of well supported groups. In fact, resolution is often improved with a more extensive sampling.
Third positions contribute most of the structure.
Saturated sites still provide structure. Frequency of change should not be use for weighting. There was some discussion of the support for the monocot group and the results from other studies. There was some problem with long branch attraction in these analyses. There was a general discussion of data analysis.