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  1. By: Carter, J. Cedric (James Cedric),
    Publication info: Urbana :State of Illinois, Dept. of Registration and Education, Natural History Survey Division,1937.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Control  Diseases and pests  Nursery stock  Pests  Ulmus  
  2. By: Bolle, Carl August,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: 1805-1877  1809-1884  1821-1890  1821-1909  1841-1927  Bolle, Carl August,  Botanical specimens  Braun, Alexander,  Correspondence  Engelmann, George,  Gramineae  Homeyer, Alexander von  Identification  Letters  Liliaceae  Picea  Pinaceae  Pinus  Plants  Sargent, Charles Sprague,  Serbia  Thurber, George,  Ulmaceae  Ulmus  Yucca
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  3. By: Purkyně, Emanuel,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: 1809-1884  1831-1882  1834-1922  America  Anacardiaceae  Coniferae  Correspondence  Crassulaceae  Cupressaceae  deforestation  Effect of cold on  Engelmann, George,  Environmental aspects  Fagaceae  Focke, Wilhelm Olbers,  Forest influences  Forestry schools and education  Identification  Juglandaceae  Leguminosae  Letters  Loranthaceae  Magnoliaceae  Names, Personal  Pinaceae  Pinus  Plants  Purkyně, Emanuel,  Quercus  Rhus  Rosaceae  Salicaceae  Taxaceae  Trees  Ulmaceae  Ulmus  Vegetation and climate
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  4. By: Loudon, J. C. (John Claudius),
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Arboretum et fruticetum Britannicum  Botanical specimens  Corema conradii  Correspondence  Derby arboretum  Gray, Asa, 1810-1888  Lindley, John, 1799-1865  Loddiges, George, 1786-1846  Loudon, J. C. (John Claudius), 1783-1843  Thorburn, George C  Torrey, John, 1796-1873  Ulmus  
    BHL Collections: John Torrey Papers | New York Botanical Garden
  5. By: Knieskern, Peter D.,
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Agassiz, Louis, 1807-1873  Aristolochia  Aspidium  Aster  Astragalus neglecta  Baccharis halimifolia  Barratt, Joseph, 1796-1882  Batchelder, John P. (John Putnam), 1784-1868  Beck, Theodric Romeyn, 1791-1855  Boott, Francis, 1792-1863  Botanical specimens  Bradley, Samuel Beach, 1796-1880  Buckley, S. B. (Samuel Botsford), 1809-1884  Cardamine  Carex  Carex barrattii  Carey, John, 1797-1880  Carpenter, William Marbury, 1811-1848  Celtis occidentalis  Chapman, A. W. (Alvan Wentworth), 1809-1899  Clitoria  Corema conradii  Correspondence  Crawe, I. B. (Ithamar Bingham), 1792-1847  Curtis, M. A. (Moses Ashley), 1808-1872  Cyperaceae  Cypripedium  Cypripedium spectabile  Darlington, William, 1782-1863  De Kay, James E. (James Ellsworth), 1792-1851  Dewey, Chester, 1784-1867  Diarrhena  Dicksonia  Dracocephalum parviflorum  Drummond, Thomas, -1835  Eleocharis  Emmons, Ebenezer, 1799-1863  Engelmann, George, 1809-1884  Erodium  Festuca  Floerkea proserpinacoides  Flora of New York state  Frémont, John Charles, 1813-1890  Gaylussacia  Gentiana  Geranium  Geub
    BHL Collections: John Torrey Papers | New York Botanical Garden
  1. By: Bakker,María L. - Alvarado,Patricia I.
    Type: Article
    In: Darwiniana
    Date: 2006-07-01
    Subjects: alcanos lineales  cera cuticular  Fraxinus  Populus  Robinia  Ulmus
  2. By: Linares,José L.
    Type: Article
    In: Revista mexicana de biodiversidad
    Date: 2005-06-01
    Subjects: Centroamérica  El Salvador  Honduras  Ulmaceae  Ulmus