Thanks, Bob. It's quite a document that I have just skimmed through. There's much of interest within but perhaps it's not appropriate in this forum. At least I found out that despite what the summary abstract says he is not proposing new genera. In fact, he does not bring up the subject. Of course, other people could take his results and propose new genera but he is not venturing further than to classify the South African Oxalidaceae into clades (not genera). That is, he deals only with terms of phylogenetic terminology, not those of Linnaean taxonomy. Phew! I will re-read in greater detail when I get time. Andrew From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Bob Rutemoeller Andrew, I did a quick Google search and found this link to Dr Oberlander's PhD Dissertation on Oxalis (March 2009). http://scholar.sun.ac.za/bitstream/handle/… %201.pdf?sequence=1 (This a large 170 page PDF file.) Bob Bob Rutemoeller brutem@mcn.org