H. Walter Lack is an internationally renowned expert on the history of plant taxonomy, the botanical research conducted by Alexander von Humboldt, and botanical illustration. His numerous publications, published in several languages, have become standard works on the history of botany. He is the head of the library, the in-house publishing house, and exhibitions at the Botanic Garden and Botanic Museum in Berlin-Dahlem.
The Linnean Society of London was founded in 1788 and is the world’s oldest active biological society. It draws its members from around the world. The Society takes its name from the Swedish naturalist Carl Linnaeus, whose scientific work is still of fundamental importance for the study of biodiversity. The previous winners of the Linnean Medal include important biologists such as Sir Joseph Dalton Hooker, Alphonse Pyrame de Candolle, Alfred Russel Wallace, Ernst Haeckel, George Charles Wallich, Eduard Strasburger, Adolf Engler, Willi Hennig, Josias Braun-Blanquet, William Thomas Stearn, Ernst Mayr, Arthur John Cronquist, Vernon Heywood, and David Mabberley.