Antoine Laurent de Jussieu
Born	12 April 1748(1748-04-12) Lyon, France
Died	17 September 1836 (aged 88)
Residence	France
Nationality	France
Fields	Botany
Institutions	Jardin des Plantes
Known for	Classification of flowering plants
Author abbreviation (botany)	Juss.

Antoine Laurent de Jussieu (12 April 1748 – 17 September 1836) was a French botanist, notable as the first to propose a natural classification of flowering plants; much of his system remains in use today.

Jussieu was born in Lyon, the nephew of the botanist Bernard de Jussieu. He went to Paris to study medicine, graduating in 1770. He was professor of botany at the Jardin des Plantes from 1770 to 1826. His son Adrien-Henri also became a botanist.

In his study of flowering plants, Genera plantarum (1789), Jussieu adopted a methodology based on the use of multiple characters to define groups, an idea derived from Scottish-French naturalist Michel Adanson. This was a significant improvement over the original system of Linnaeus, who classified plants into classes and orders based on the number of stamens and pistils. Jussieu did keep Linnaeus' binomial nomenclature, resulting in a work that was far-reaching in its impact; many of the present-day plant families are still attributed to Jussieu. Morton's 1981 History of botanical science counts 76 of Jussieu's families conserved in the ICBN, versus just 11 for Linnaeus, for instance.

In 1788, he was elected a foreign member of the Royal Swedish Academy of Sciences.

He was a member of the Masonic Lodge, Les Neuf Sœurs.

[edit] Works

• Jussieu, Antoine Laurent de (1789). Genera Plantarum, secundum ordines naturales disposita juxta methodum in Horto Regio Parisiensi exaratam. Paris. OCLC 315729. http://books.google.com/books?id=nikkCxpBLm8C. Retrieved 2007-02-19. 
• Jussieu, Antoine Laurent de. Antonii Laurentii de Jussieu Genera plantarum :secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam, anno M.DCC.LXXIV. http://www.biodiversitylibrary.org/item/7125. Retrieved 2009-08-19. 
• Jussieu, Antoine Laurent de. Opuscules de botanique. http://www.biodiversitylibrary.org/item/42195. Retrieved 2009-08-19. 

[edit] References

• Duane Isely, One hundred and one botanists (Iowa State University Press, 1994), pp. 118-120
• This article incorporates text from the article "De Jussieu" in the Encyclopædia Britannica, Eleventh Edition, a publication now in the public domain.
• "De Jussieu". Catholic Encyclopedia. New York: Robert Appleton Company. 1913. http://en.wikisource.org/wiki/Catholic_Encyclopedia_(1913)/De_Jussieu. 

This article incorporates text from the public-domain Catholic Encyclopedia of 1913.