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  1. Correspondence : Crawshaw (Edmund) and Engelmann (George), 1877.
    By: Crawshaw, Edmund.
    Contributed by: 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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  2. Correspondence : Letterman (George) and Engelmann (George), 1875-1883.
    By: Letterman, George W.
    Contributed by: 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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  3. La culture du poirier et du pommier / par O. Opoix.
    By: Opoix, Octave.
    Edition: 4. éd., corr. et augm.
    Publication info: Paris :Librairie Octave Doin,1921.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Culture  Malus pumila  Pyrus  
    BHL Collections: New York Botanical Garden
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  4. Pear growing in California : a practical treatise designed to cover some of the important phases of pear culture within the state / by Geo. P. Weldon.
    By: Weldon, Geo. P.
    Publication info: Sacramento :State Print. Off.,1918.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: California  Culture  Fruit-culture  Pyrus  
    BHL Collections: New York Botanical Garden
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  5. The pears of New York. By U.P. Hedrick, assisted by G.H. Howe[and others]
    By: Hedrick, U. P. - Howe, G. H.
    Publication info: Albany,Lyon,1921.
    Contributed by: Mertz Library, The New York Botanical Garden
    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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