Hugo de Vries
Hugo Marie de Vries (Haarlem, 16 February 1848 – Lunteren, 21 May 1935) was a Dutch botanist and one of the first geneticists. He suggested the concept of genes, rediscovered Gregor Mendel's laws of heredity, and introduced the term mutation. He developed a mistaken mutation theory of evolution, mainly due to the peculiarities of his favourite organism, the Evening Primrose (Oenothera lamarckiana).
Carl Correns also – independently – rediscovered Gregor Mendel's work on genetics. Erich von Tschermak's status as a third rediscoverer is now less convincing.
Hugo De Vries Media
Hugo de Vries at his retirement (Thérèse Schwartze, 1918)