A taxonomic revision of the Flacourtiaceae of New Caledonia incl. the Loyalty Islands, based mainly on the recently very enriched materials deposited in the Paris Herbarium. This resulted in a total of 53 species, belonging to 4 genera: Casearia, Homalium, Xylosma, and the endemic genus Lasiochlamys; 21 species and 1 variety were described as new and 5 new combinations were made.