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  1. By: Pech, F. (Frederick),
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (Alvan Wentworth),  (Eliza),  (Frederick),  (Heinrich Gustav),  (William Hemsley),  1770-1855  1786-1859  1807-1867  1807-1880  1809-1884  1809-1899  1810-1888  1811-1887  1824-1889  1827-  Botanical specimens  Chapman, A. W  Chara  Characeae  Correspondence  Emory, William H  Engelmann, George,  Gray, Asa,  Identification  Letters  Michaux, François André,  Nuttall, Thomas,  Orobanchaceae  Orobanche  Pech, E  Pech, F  Reichenbach, H. G  Riddell, John Leonard,
    BHL Collections: Engelmann Papers, Missouri Botanical Garden