Following a collecting trip to New Caledonia in the early 1970s, Bill Dickison and collaborators published a series of papers focused on the anatomy, morphology, and systematic relationships of the endemic families Strasburgeriaceae, Oncothecaceae, and Paracryphiaceae. They concluded that Strasburgeria, Oncotheca, and Paracyphia should each be treated as distinct families positioned near Ochnaceae, Theaceae, and Sphenostemonaceae, respectively. These anatomical data proved to be a valuable source of systematic characters, but the precise phylogenetic positions of these enigmatic families was still left in doubt. In fact, even the ordinal classification of flowering plants published by the Angiosperm Phylogeny Group (1998) left uncertain the position of two of these three families. More recently, however, phylogenies for eudicots based on multiple gene data sets firmly place Oncothecaceae within Garryales, Paracryphiaceae within Dipsacales, and Strasburgeriaceae sister to Ixerbacaeae near Crossosomatales. A comparison of anatomy and morphology for these groups is presented in the context of these new phylogenetic hypotheses.

Key words: New Caledonia, Oncothecaceae, Paracryphiaceae, Strasbergeriaceae, William C. Dickison