books.google.co.uk - The Illustrated Handbook of Succulent Plants represents the first comprehensive taxonomic treatment of succulents in thirty years. It covers over 9000 taxa of all succulents except Cactaceae.The volume on dicotyledonous families embraces succulents from 47 families and 161 genera, further 8 families...http://books.google.co.uk/books/about/Illustrated_Handbook_of_Succulent_Plants.html?id=ffBRAyZLuh0C&utm_source=gb-gplus-shareIllustrated Handbook of Succulent Plants