Dear friends, colleagues and family of Serge, First of all, the Museum and gardens of Lausanne would like to deeply apologize for the huge delay in reacting to Serge's death (I am not on the mailing list and François Bonnet was away from his computer). On behalf of the Musée & Jardin Botanique Cantonaux of Lausanne and the Alpine garden "La Thomasia", in particular our director François Felber and François Bonnet from Pont-de-Nant, I wish to extend sincere condolences to his family and colleagues and a message of support to all his relatives to the hardship they go through. As a scientist and a botanist, Serge was and will still be a source of inspiration for me. We hope we will be able to honor his huge legacy in 2016. Sincerly, For the MJBC in Lausanne and Pont-de-Nant, Christophe Randin