Acknowledgements are first due to the Department to which the senior author belongs for his research activities that have funded this work for travels and accommodations in Mauritius: UMR CBGP (Internal call for proposals 2018). Many thanks are also due to Mrs Marie Anne Edouard for hosting the senior author and for his son for helping with car problems. Great thanks to Mrs Claudia Baider, responsible for the Mauritius Herbarium, who has identified some plants and advice on Island locations and Mauritius biodiversity. Thanks also to National Authorities of Mauritius for the signature of a Memorandum of agreement for the supply of biological material by the Government of Mauritius and a Phytosanitary certificate. Also thanks to Le Vélo Vert Association, especially Mrs Géraldine d'Unienville for e-mail exchanges and advices. Thanks also to the I-SITE Montpellier Université d'Excellence (MUSE) for the international mobility support to the junior author (Explore \#2, the MUSE International Mobility program, 2019).