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By: Gregg, Josiah,Edition:Publication info: New York, H. G. Langley, 1844Volume: v.1Series:Holding Institution: Missouri Botanical Garden, Peter H. Raven LibrarySubjects:BHL Collections: Engelmann Herbarium
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By: Gregg, Josiah,Edition:Publication info:Volume: Gregg to Engelmann, 1846-1849Series:Holding Institution: Missouri Botanical Garden, Peter H. Raven LibrarySubjects:BHL Collections: Engelmann Papers, Missouri Botanical Garden
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By: Gregg, Josiah,Edition:Publication info: 1847-1849Volume:Series:Holding Institution: Harvard University Botany LibrariesSubjects:BHL Collections: BHL Field Notes Project