Retrophyllum is a genus of coniferous gymnosperms in the family Podocarpaceae. It has a disjunct distribution in the Southern Hemisphere. Four or five species are recognized. Fossil Record Retrophyllum shoots have a distinctive morphology in which the leaves are in opposite pairs, and twisted in such a way that the abaxial surface of one leaf is u... Found on http://en.wikipedia.org/wiki/Retrophyllum