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  1. A new Eurystyles from Nicaragua [by] Alfonso H. Heller.
    By: Heller, Alfonso H
    Publication info: Chicago, Ill. :Field Museum of Natural History,1968.
    Contributed by: University of Illinois Urbana Champaign
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  2. A new Odontoglossum from Nicaragua [by] Alfonso H. Heller.
    By: Heller, Alfonso H
    Publication info: Chicago, Ill. :Field Museum of Natural History,1969.
    Contributed by: University of Illinois Urbana Champaign
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  3. Three new Nicaraguan Epidendrums / Alfonso H. Heller.
    By: Heller, Alfonso H
    Publication info: Chicago, Ill. :Field Museum of Natural History,1968.
    Contributed by: University of Illinois Urbana Champaign
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