Abstract: Alfred Rehder first came to the Arboretum in 1898 while on assignment for Moller’s Deutsche Gartner-Zeitungand where he held the position of Associate Editor. Intending only to stay in America for half a year he was persuaded to join the Arboretum’s staff and he remained at the Arboretum until, and beyond, his retirement in 1940. He was appointed Curator of the Arboretum’s Herbarium in 1918, became editor of the Journal of the Arnold...