3.1. Data matrix
Alignment was straightforward for the matK matrix.
Especially the coding region was easy to align and only few
gaps needed to be inserted. Alignment proved to be more
difficult for the trnL-F matrix due to extensive repeat regions
within the Disa trnL intron as described in detail by Bellstedt
et al. (2001). These repeat sequences do not contribute any
phylogenetic information but make the matrix unwieldy in its
length. They were therefore deleted.