At the museum he was put in charge of Section 3 of the General Herbarium (the last third of the Dicotyledons in the Bentham & Hooker system, i.e., Monochlamydae)[lower-alpha 7] and floristic treatment of the regions of Europe, Jamaica, the United States, Australia and Nepal, including work on the museum's Flora of Jamaica[44] and the Nepal flora he started work on during the war.[41][16] Seven volumes of the Flora of Jamaica had appeared prior to the Second World War. Although the project was revived after the war, and Stearn carried out six months of field work in Jamaica, it never came to fruition; no further volumes appeared.