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By: Franzoni, Alberto,Edition:Publication info:Volume: Gray to Engelmann, 1858Series:Holding Institution: Missouri Botanical Garden, Peter H. Raven LibrarySubjects: 1809-1884 1816-1886 Bryologists Correspondence Engelmann, George, Franzoni, Alberto, Letters Museo civico di storia naturale di MilanoBHL Collections: Engelmann Papers, Missouri Botanical Garden