Comprehensive descriptive account of the Podostemaceae, Hydrostachyaceae, Rafflesiaceae, Hydnoraceae, Aristolochiaceae, Piperaceae, Myristicaceae, Monimiaceae, Lauraceae, Hernandiaceae (excluding Polygonaceae) native and naturalised in Zambia, Malawi, Mozambique, Zimbabwe, Botswana and the Caprivi Strip.