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By: Luerssen, Christian,Edition:Publication info:Volume: Luerssen to Engelmann, 1882Series:Holding Institution: Missouri Botanical Garden, Peter H. Raven LibrarySubjects: 1809-1884 1843-1916 Correspondence Engelmann, George, Isoetaceae Isoetes Letters Luerssen, Christian, Pteridophyta The genus Isoëtes in North AmericaBHL Collections: Engelmann Papers, Missouri Botanical Garden