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  1. A.J. Downing and John Torrey correspondence, 1833-1847
    By: Downing, A. J. (Andrew Jackson),
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: (1838-1842)  (Andrew Jackson),  (Charles Mason),  (Christian Gottfried),  (Constantine Samuel),  (James Ellsworth),  (John Claudius),  (Nathaniel),  (William Goldsmith),  (William Williams),  1769-1835  1770-1853  1776-1858  1778-1839  1779-1864  1780-1848  1783-1840  1783-1843  1784-1860  1786-1845  1786-1854  1786-1859  1792-1851  1794-1851  1796-1873  1797-1837  1799-1834  1799-1865  1800-1884  1804-1859  1810-1887  1810-1888  1815-1852  -1855  Bartonia  Belknap, William G  Bentham, George,  Botanical specimens  Buel, Jesse,  Corema conradii  Correspondence  Cottage residences  Croom, Hardy Bryan,  Croomia pauciflora  Cycas  De Kay, James E  Dickerson, Mahlon,  Dionaea  Douglas, David,  Downing, A. J  Eschscholzia californica  Euphorbia  Euphorbia pulcherrima  Gilia tricolor  Graham, Robert,  Gray, Asa,  Gymnocladus  Horticultural Society of London  Hosack, David,  Hovey, C. M  Introduction to the natural system of botany  Knevels, John W.,  Ladies' botany  Le Conte, John Eatton,  Limnanthes douglasii  Lindley, John,  Loudon, J. C  Lyceum of Natural History (New York, N.Y
    BHL Collections: John Torrey Papers | New York Botanical Garden
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  2. Correspondence : Crawshaw (Edmund) and Engelmann (George), 1877.
    By: Crawshaw, Edmund.
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: 1809-1884  Correspondence  Crawshaw, Edmund  Diseases and pests  Engelmann, George,  Letters  Pyrus  Rosaceae  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
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  3. Correspondence : Letterman (George) and Engelmann (George), 1875-1883.
    By: Letterman, George W. (George Washington),
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (George Washington),  (Heinrich Karl Daniel),  (Julien),  1809-1884  1810-1888  1813-1883  1822-1893  1826-1901  1831-1904  1836-1905  1840-1913  1841-1904  1841-1927  Acer  Arabis  Botanical specimens  Canby, William Marriott,  Carya  Cheilanthes  Collectors and collecting  Correspondence  Cruciferae  Eggert, Henry  Engelmann, George,  Fendler, Augustus,  Franklin County  Galium  Gray, Asa,  Hepaticae  Heuchera  Hybridization  Jefferson County  Juglandaceae  Letterman, George W  Letters  Meehan, Thomas,  Missouri  Plants  Populus  Pteridophyta  Pyrus  Receipts (Acknowledgments)  Reverchon, J  Rhamnaceae  Rosaceae  Rubiaceae  Saint Louis County  Salicaceae  Sapindaceae  Sargent, Charles Sprague,  Saxifregaceae  Vasey, George,  Wood  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
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  4. La culture du poirier et du pommier /
    By: Opoix, Octave.
    Edition: 4. éd., corr. et augm.
    Publication info: Paris :Librairie Octave Doin,1921.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Culture  Malus pumila  Pyrus  
    BHL Collections: New York Botanical Garden
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  5. Pear growing in California : a practical treatise designed to cover some of the important phases of pear culture within the state /
    By: Weldon, Geo. P. (George Percival),
    Publication info: Sacramento :State Print. Off.,1918.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: California  Culture  Fruit-culture  Pyrus  
    BHL Collections: New York Botanical Garden
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  6. The pears of New York.
    By: Hedrick, U. P. - Howe, G. H.
    Publication info: Albany,Lyon,1921.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Culture  Pyrus  
    BHL Collections: New York Botanical Garden
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  1. Presencia de Pyrus communis (Rosaceae Maloideae) naturalizada en la República Argentina
    By: Delucchi,Gustavo - Farina,Eduardo - Torrres Robles,Silvia S.
    Type: Article
    In: Boletín de la Sociedad Argentina de Botánica
    Date: 2009-07-01
    Subjects: Argentina  Buenos Aires  Naturalización  Pyrus  Rosaceae  
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