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By: Al-Shehbaz, Ihsan A., (Ihsan Ali) - Schubert, Bernice GiduzType: ArticleIn: Journal of the Arnold ArboretumVolume: 70Series:Issue: 1Date: 1989Page Range: 57--95Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-Subjects:
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By: Fernald, Merritt Lyndon, - Schubert, Bernice GiduzType: ArticleIn: RhodoraVolume: 50Series:Issue:Date: 1948Page Range: 149--176Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],Subjects: