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By: Houghton, Douglass,Edition:Publication info:Volume:Series:Holding Institution: New York Botanical Garden, LuEsther T. Mertz LibrarySubjects: Botanical specimens Bull, George H., active 1839 Correspondence Gray, Asa, 1810-1888 Houghton, Douglass, 1809-1845 Lycopodium Michigan, Geological Survey Pitcher, Zina, 1797-1872 Schoolcraft, Henry Rowe, 1793-1864 Torrey, John, 1796-1873 University of Michigan Wright, John, 1811-1846BHL Collections: John Torrey Papers