Please note that as of 2018 the National Herbarium in the Netherlands has stopped publishing this series. NHBS has received the remaining stock from the publisher, so volumes that are marked as out of print cannot be obtained anymore. The National Parks Board, Singapore, has taken over this series and will be publishing further volumes (volume 23 and onwards in series 1, volume 5 and onwards in series 2).
Flora Malesiana is a systematic account of the flora of Malesia, the plant-geographical unit spanning six countries in Southeast Asia: Indonesia, Malaysia, Singapore, Brunei Darussalam, the Philippines, and Papua New Guinea.
The family treatments have not been published in a systematic order but as they come available by the scientific efforts of some 100 collaborators all over the world. Each family treatment contains keys for identification, descriptions of the recognized taxa from family to variety, and a large amount of information (with literature references) on, e.g., taxonomy, variability, synonymy, typification, distribution, habitats and ecology, morphology and anatomy, phytochemistry, and uses.
Attention is given in the first place to the indigenous species but non-native, cultivated or escaped species are also treated (described and keyed out) or at least mentioned. Drawings and photographs illustrate the treatments, and as a general rule at least one species of each native genus has a full-page drawing.
There are two series: I, Spermatophyta (Seed Plants), and II, Pteridophyta (Ferns and Fern allies). From 1991 onward the Flora was published for the Foundation Flora Malesiana by the National Herbarium - Leiden. From 1997 onwards, the subdivision of the volumes into parts was abandoned. Each issue, covering one or more families, was called a volume.