inspection of the recipe reveals that the ingredients come from five or six families, six or seven genera of flowering plants and one genus of ascomycete fungi. Some other genera of flowering plants and one conifer genus are important in the preparation of the ingredients and the presentation of the pudding. The sources of the ingredients are organised here in the sequence recommended by the Angiosperm Phylogeny Group for angiosperms, followed by the gymnosperms and fungi. The angiosperms include representatives of the magnoliids, monocots and rosids, but asterids are absent.
http://www.kew.org/discover/blogs/kew-science/botanical-origins-victorian-christmas-pudding
http://www.kew.org/visit-kew-gardens/whats-on/orchids
