Buxaceae

The Buxaceae are a small family of six genera and about 123 known species of flowering plants. They are shrubs and small trees, with a cosmopolitan distribution. A seventh genus, sometimes accepted in the past (Notobuxus), has been shown by genetic studies to be included within Buxus (Balthazar et al., 2000). The family is recognised by most taxonomists, and it is commonly known as the box family. However, its placement and circumscription has varied; some taxonomists treated Styloceras in its own family Stylocerataceae, Didymeles in its own family Didymelaceae, Haptanthus in Haptanthaceae (now all included in Buxaceae)), and formerly Simmondsia was included, which is not related and now usually placed in its own family Simmondsiaceae. The APG II system of 2003 recognises the family, but in a new circumscription in that it includes the genus Didymeles (two species of evergreen trees from Madagascar). However, APG II does allow the option of segregating this genus as family Didymelaceae......read more on Wikipedia.