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By: Littlefield, E WType: ArticleIn: RhodoraVolume: 30Series:Issue:Date: 1928Page Range: 129--131Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Littlefield, E WType: ArticleIn: RhodoraVolume: 33Series:Issue:Date: 1931Page Range: 162--163Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Pratt, W F - Litchfield, E W - Littlefield, E WType: ArticleIn: RhodoraVolume: 40Series:Issue:Date: 1938Page Range: 241--242Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Littlefield, E WType: ArticleIn: Journal of the New York Botanical GardenVolume: 44Series:Issue: 524Date: 1943-08Page Range: 185--191Publication Info: Lancaster, Pa Published for the Garden by the New Era Printing Co 1900-Subjects: