- Alfred Rehder
Alfred Rehder was a
horticulturist andtaxonomist who worked at theArnold Arboretum ofHarvard University . Rehder was a newspaper writer fromGermany who was originally hired as a laborer at the Arnold Arboretum. His talents for horticultural plant taxonomy were soon recognized, however. Early in his employment he was sent toEurope to purchase books for the library at the Arboretum. When the "Journal of the Arnold Arboretum" was started in 1919, Rehder was co-editor, along with the Arboretum director,Charles Sprague Sargent . Rehder produced a new edition of "Manual of Cultivated Trees and Shrubs" and authored the "Bibliography of Cultivated Trees and Shrubs" and "The Bradley bibliography". [Howard, Richard A. (1975) The Arnold Arboretum. "Botanical Society of America Plant Science Bulletin". June, 1975. Vol. 21 No. 2 [http://www.botany.org/PlantScienceBulletin/psb-1975-21-2.php] - URL retrievedFebruary 26 2006 ] [ [http://web.archive.org/web/20060208214235/http://www.meemelink.com/books+pages/references.html Antiquariaat Jan Meemelink flower books + prints] - URL retrievedFebruary 26 2006 ] He was co-author, withErnest Henry Wilson , of "Plantae Wilsonianae" and "A Monograph of Azaleas". [ [http://hcs.osu.edu/hort/history/130.html History of Horticulture - Ernest Henry Wilson] - URL retrievedFebruary 26 2006 ] Rehder created the first system of isothermic zones for theUnited States that related average winter minimum temperatures to thehardiness of specific plants. That system, along with another system developed byWladimir Köppen , are the basis for all of the climate zone maps in use today.References
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