Wild Relatives of the Eggplant (Solanum melongena L.: Solanaceae): New Understanding of Species Names in a Complex Group Author Knapp, Sandra Department of Life Sciences, Natural History Museum, Cromwell Road, London, United Kingdom s.knapp@nhm.ac. uk Author Vorontsova, Maria S. Herbarium, Library, Art and Archives, Royal Botanic Gardens Kew, Richmond, Surrey, United Kingdom Author Prohens, Jaime Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain text PLoS ONE 2013 2013-02-22 8 2 1 12 journal article 20350 10.1371/journal.pone.0057039 fcefd797-1d3e-43c6-ad6e-8550a33e9199 PMC3579775 23451138 6338572 10. Solanum umtuma Voronts. & S.Knapp , PhytoKeys 8: 4. 2012. Distribution. Endemic to the province of KwaZulu-Natal in South Africa; occasional on grassland, scrub, and forest edges, on sandy soil, 50–1300 m elevation. Solanum umtuma is sympatric with and closely related [ 38 ] to S. linnaeanum . Solanum linnaeanum has distinctive deeply incised leaves with rounded lobes (see Fig. 1E ) while S. umtuma has more shallowly lobed leaves with acute lobes although some specimens have been seen with rounded lobes. The flowers of S. umtuma are usually pale lilac or white, while those of S. linnaeanum are purple. Solanum cerasiferum is also similar, but has less prickly calyces and deltate, rather than leafy, calyx lobes.