Philippe Édouard Léon Van Tieghem
Philippe Édouard Léon Van Tieghem (French pronunciation: [filip edwaʁ leɔ̃ van tiɡɛm]; 19 April 1839 – 28 April 1914) was a French botanist born in Baillleul in the département of Nord. He was one of the best known French botanists of the latter nineteenth century. The standard author abbreviation Tiegh. is used to indicate this person as the author when citing a botanical name.