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By: Rau, Eugene A. (Eugene Abraham),Edition:Publication info:Volume: Rau to Engelmann, 1882Series:Holding Institution: Missouri Botanical Garden, Peter H. Raven LibrarySubjects: (Eugene Abraham), 1809-1884 1848-1932 Collectors and collecting Correspondence Cryptogams Engelmann, George, Identification Isoetaceae Isoetes Letters Rau, Eugene ABHL Collections: Engelmann Papers, Missouri Botanical Garden