Flora of Pennsylvania, and botanist's pocket manual : comprising a glossary of botanical terms, analytical tables, and the natural orders ... Noll, Henry R. creator text book Philadelphia Lippincott, Grambo 1851 1851
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ENG Britton's Bibliography, 1890. Britton, Nathaniel Lord Pages xiii-xxiv incorrectly numbered 109-120. Includes indexes. Floras Pennsylvania Plants https://www.biodiversitylibrary.org/bibliography/62221 4909033 06001939 10.5962/bhl.title.62221 DLC