Dr. L.A.S. Johnson has made outstanding contributions to botanical systematics in Australia at all taxonomic levels and to the theory of biological systematics. Dr. Johnson directs an active research staff at the Royal Botanic Gardens, Sydney.
Major studies include revised classifications with evolutionary interpretation of the order Myrtales, the families Myrtaceae, Proteaceae, Casuarinaceae and Zamiaceae, as well as re-classificÂation of the Eucalypts at generic through to sub-specific levels. All are broadly-based, but intensive, syntheses in which various bases for relationships are assessed in the light of evolutionary processes, phytogeography, floristic history and functional adaptation. This work has international as well as local significance.
