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By: University of Pennsylvania. Botanical Laboratory.Edition:Publication info: Philadelphia, University of Pennsylvania Press, 1892-Volume: 1Series:Holding Institution: Penn State UniversitySubjects:BHL Collections:
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By: University of Pennsylvania. Botanical Laboratory.Edition:Publication info: Philadelphia, University of Pennsylvania Press, 1892-1932Volume: 1, 1892-1897Series:Holding Institution: New York Botanical Garden, LuEsther T. Mertz LibrarySubjects:BHL Collections:
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By: University of Pennsylvania. Botanical Laboratory. - University of Pennsylvania. Morris Arboretum.Edition:Publication info: Philadelphia, [s.n,Volume: 11Series:Holding Institution: Penn State UniversitySubjects:BHL Collections: