F. Willis

Defining a role for herbarium data in Red List assessments: a case study of Plectranthus from eastern and southern tropical Africa

Alan Paton, Fiona Willis, Justin Moat, 2003, Biodiversity & Conservation.

Phylogeny and evolution of basils and allies (Ocimeae, Labiatae) based on three plastid DNA regions.

V. Savolainen, M. Simmonds, S. Suddee, 2004, Molecular phylogenetics and evolution.