Flora Zambesiaca was started in 1960 as a joint project involving the Governments of the Federation of Rhodesia (now Zambia and Zimbabwe), Nyasaland (now Malawi), Portugal and the United Kingdom, and the following institutions: Natural History Museum, London; Royal Botanic Gardens, Kew; Centro de Botânica, Junta de Investigações do Ultramar, Lisbon; National Herbarium of Zimbabwe; National Herbarium of Malawi. Areas incorporated include the Zambezi River basin, covering the territories of Botswana, Malawi, Mozambique, Zambia, Zimbabwe and the Caprivi Strip. The fourteen volumes will be divided into 50 parts. When completed the Flora will treat an estimated 10,000 species. The treatment for Sapotaceae was written using the framework of A. Meeuse for the Flora of Southern Africa and J.H. Hemsley for the Flora of Tropical East Africa. It recognises 12 genera and 29 species.