Buramnniaceae are a relatively small family including circa 160 species and 13 genera of annual and perenial herbs. Dur to the myco-heterotrophic habit of most Burmanniaceae species our knowledge about this fascinating family is limited. The aim of this project is to investigate phylogenetic relationships within Burmanniaceae. Phylogenetic reconstruction is based on a molecular dataset containing nuclear and mitochondrial DNA- sequences and a comprehensive morphological datamatrix. For the morphological work we focus on the pollen morphological characters of the family: pollen of circa 50 species will be observed using light and scanning electron microscopy.