Belgian botanist, pteridologist (1921-2005).
André Gilles Célestin Lawalrée (2 February 1921 – 18 April 2005) was a Belgian botanist and pteridologist. He was head of the Department of Vascular Plants (Spermatophyta-Pteridophyta) in the National Botanic Garden of Belgium. As an expert on the Belgian flora he was invited to act as the regional adviser for Belgium on the Flora Europaea project. He also made a study of the flora of central Africa, especially that of the former Belgian Congo (now Democratic Republic of the Congo). He was interested in and wrote about the lives of earlier Belgian botanists, such as Marie-Anne Libert and Pierr