After some preliminary plans in 1932, and in 1936, a more definite scheme for a modern Flora of Malaysia was composed in 1939, forming part of the reorganization of the Botanic Gardens, Buitenzorg, Java. This was approved of by the Netherlands Indian Government, and the National Council at Batavia. Necessary preparations for this ambitious scheme had started as early as 1930, consisting of the preparation of card indices, and directing the aim of expeditions in the years 1930 – 1940 to neglected regions in order to fill up gaps in our botanical knowledge and collections.