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  1. Catalogue of North American plants north of Mexico, exclusive of the lower cryptogams / by A.A. Heller.
    By: Heller, Amos Arthur,
    Edition: 2nd ed.
    Publication info: [Lancaster, Pa. :A.A. Heller],1900.
    Contributed by: Mertz Library, The New York Botanical Garden
    BHL Collections: New York Botanical Garden
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  2. Muhlenbergia.
    By: Heller, Amos Arthur, - Kennedy, P. Beveridge.
    Publication info: Chico, Calif. [etc]
    Contributed by: Mertz Library, The New York Botanical Garden
    BHL Collections: New York Botanical Garden
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