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  1. Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania, north to the Blue mountains, and west to the Susquehanna; all of New Jersey except the northern counties; and New Castle County, Delaware, with keys for identification of species,
    By: Keller, Ida Augusta. - Brown, Stewardson,
    Publication info: Philadelphia,Philadelphia Botanical Club,1905.
    Contributed by: Cornell University Library
    Subjects: Botany  Delaware  New Jersey  Newcastle County  Pennsylvania  
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