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By: Dickson, James GeereType: ArticleIn: American journal of botanyVolume: 5Series:Issue: 6Date: 1918-06Page Range: 301--324Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-Subjects:
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By: Dickson, James GeereType: ArticleIn: American journal of botanyVolume: 8Series:Issue: 5Date: 1921-05Page Range: 256--274Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-Subjects: