KEHR, Gustav Herman (kair), German botanist, born in Freysingen in 1581; died in Magdeburg in 1639. He was professor in the universities of Tubingen and Halle, and afterward librarian of the Prince of Lippe-Detmold, who sent him in 1621 to America to study the plants of that, country. Kehr went first to New Spain, and after several years crossed the Isthmus of Panama, and, sailing for Patagonia, studied the plants of the country. that is now the Argentine Republic from 1624 till 1629, visiting afterward Chili, Brazil, and Peru. On his return he published, among other works, "De Sexu plantarum" (Magdeburg, 1631); "Aphorismi botanicae" (Tubingen, 1633); "Historia generalis plantarum Americanarum" (3 vols., Halle, 1635); "Grundlehren der Anatomie und Physiologie der Pflanzen yon Amerika" (Magdeburg, 1636); "Set-turn Patagonicum et florula peruviensis" (2 vols., Dresden, 1636); " Criptogamae Brasilienses ab Gustavius Kehr collectae" (Magdeburg, 1632); and "Reisen in Amerika" (2 vols., 1639).