 Ernest Cosson

Ernest Saint-Charles Cosson (July 22, 1819 – December 31, 1889) was a French botanist born in Paris

Cosson is known for his botanical research in North Africa, and during his career he participated in eight trips to Algeria.In several of these he was accompanied by Henri-René Le Tourneux de la Perraudière (1831-1861), whom he honoured in the naming of several species and genera (e.g., "Perralderia", "Galium perralderii").