April 7, 1727 (a Monday)

Michel Adanson

On this date, the French botanist Michel Adanson was born. Following study at the Plessis Sorbon, the Collège Royal, and the Jardin du Roi, Adanson traveled to Senegal where he spent four years collecting natural history specimens. The report of this expedition appeared in 1757 as Histoire naturelle du Sénégal, and it contained a novel systematic arrangement of mollusks that won Adanson some notoriety in zoological circles. He is best remembered, however, for his comprehensive Familles des plantes (Paris, 1763–1764), in which he rejected systems (such as those of Linnaeus) that were based on only a few selected characters (artificial systems), in favor of an arrangement that takes all features of the plant into account (a natural system). As an associate of Buffon, Adanson was a significant contributor to the Historie naturelle, and his own herbarium, numbering about 30,000 specimens, came to rest in Paris at the Muséum National d’Histoire Naturelle.

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