The J C Raulston Arboretum in Raleigh has recently added a living fossil from the age of the Dinosaurs to the new Xeric garden. The following link from National Geographic tells of the discovery of this extraordinary plant and the attempts to save it from extinction. http://shop.nationalgeographic.com/text/content/wollemi_pine_booklet_1106.pdf

Here is a link that might be useful: Discovery of Prehistoric Wollemi Pine