I am testing the species limits of Solanum montanum and S. phyllanthum using two molecular markers, the internal transcribed spacer (ITS) region and the fruit vacuolar invertase (Vac) gene. I am also using image analysis along with various multivariate statistical methods to investigate the range of morphological variation in leaf shape. My supervisors are Jonathan Bennett (Botany) and Norman MacLeod (Palaeontology).