Genera Plantarum is a publication by Carl Linnaeus (1707–1778), a Swedish naturalist. Genera Plantarum's first edition includes brief descriptions of the 935 genera of plants known to Linnaeus at that time. It is dedicated to Herman Boerhaave, a physician from Leiden who introduced George Clifford to Linnaeus and the Dutch medico-botanical establishment of the day.In his method of classification, plants are grouped according to the number of stamens and pistils in a flower, as used by Genera Plantarum. In the 1753 edition of Species Plantarum, which is now taken as the starting point for all botanical nomenclature, Linnaeus developed the system of binomial nomenclature through the widespread acceptance of his list of plants. Genera Plantarum was an important part of the first step towards a standardized universal biological nomenclature.