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By: Cole, Ruth DType: ArticleIn: Botanical gazetteVolume: 63Series:Issue: 2Date: 1917Page Range: 110--123Publication Info: Hanover, Ind, [publisher not identified], 1876-1991Subjects:
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By: Jeffrey, Edward C. (Edward Charles), - Cole, Ruth DType: ArticleIn: Annals of botanyVolume: 30Series:Issue:Date: 1916-07Page Range: 359--368Publication Info: London, Academic Press [etc.],Subjects: