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By: Nielsen, Etlar LType: ArticleIn: RhodoraVolume: 43Series:Issue:Date: 1941Page Range: 219--220Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Nielsen, Etlar LType: ArticleIn: Madroño; a West American journal of botanyVolume: 4Series:Issue:Date: 1937Page Range: 17--21Publication Info: Berkeley California Botanical SocietySubjects:
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By: Nielsen, Etlar LType: ArticleIn: TorreyaVolume: 35Series:Issue: 3Date: 1935Page Range: 53--56Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945Subjects: