Roger de Vilmorin (Roger Marie Vincent Philippe Lévêque de Vilmorin; 12 September 1905 – 20 July 1980) was a French botanist and geneticist, as well as an illegitimate son of Alfonso XIII of Spain.
[1] However, he was recognized by his mother's legitimate husband, Philippe de Vilmorin, a well-known botanist and horticulturist.
Between 1926 and 1964 he directed the scientific services of Vilmorin & Cie, the family seed manufacturing company.
In 1946 he became a member of the AAF (Académie d'agriculture de France), a public institution of which he was appointed director in 1961.
Among the plant taxa he described as part of his botanical studies one may remember Gentiana ligustica[4].