Flora of Australia, volumes 49 and 50. Oceanic islands [part one and two].
Canberra: Australian Government Publishing Service, 1993-1994. Octavo, text illustrations, very good set in dustwrappers.
Part one: Norfolk Island and Lord Howe Island.
Part two: Christmas and Cocos (Keeling) Islands and Ashmore Reef (Indian Ocean), the Coral Sea, Macquarie and Heard Islands (sub-Antarctic region).