Vittore Benedetto Antonio Trevisan de Saint-Léon (5 June 1818, in Padua – 8 April 1897, in Milan) was an Italian botanist who specialized in cryptogamic flora.
[1] During his career, he was a professor of natural history in Padua.
In 1882, he was named president of the Accademia fisio-medica-statistica in Milan.
[2][3] In 1848, he circumscribed the genus Romanoa (family Euphorbiaceae) [4] and in 1861, named the genus Speerschneidera (family Bacidiaceae).
[5][6] In 1888, he circumscribed the (Algae) genus Nocardia (family Nocardiaceae) that is now classed as bacteria.