Jean Koechlin
Jean Koechlin was a French botanist and Christian hymn writer.
Koechlin was born on 28 August 1920 in Basel, on the river Rhine, in northwestern Switzerland. He was a lifelong Plymouth Brethren, of the Exclusive Brethren that followed a division with William Kelly in 1881.
Koechlin authored the book Flore et Végétation de Madagascar with Jean-Louis Guillaumet and Philippe Morat. It is the standard work on the vegetation of Madagascar.
Koechlin died on 13 September 2009 in Francheville, Metropolis of Lyon, region of Auvergne-Rhône-Alpes, eastern France. He was a grandson of Maurice Koechlin, structural engineer.