Patrick Blanc and Francis Hallé holding a Mussaenda sample during the preparation of the last Canopy Raft expedition in Laos, January 2012, photo Dany Cleyet Marrel

2012
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  • Patrick Blanc and Francis Hallé holding a Mussaenda sample during the preparation of the last Canopy Raft expedition in  Laos, January 2012, photo Dany Cleyet Marrel

    Patrick Blanc and Francis Hallé holding a Mussaenda sample during the preparation of the last Canopy Raft expedition in Laos, January 2012, photo Dany Cleyet Marrel