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By: Rock, Howard F LType: ArticleIn: RhodoraVolume: 58Series:Issue:Date: 1956Page Range: 311--317Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Rock, Howard F LType: ArticleIn: RhodoraVolume: 59Series:Issue:Date: 1957Page Range: 128--158Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Rock, Howard F LType: ArticleIn: RhodoraVolume: 59Series:Issue:Date: 1957Page Range: 168--178Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Rock, Howard F LType: ArticleIn: RhodoraVolume: 59Series:Issue:Date: 1957Page Range: 203--216Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects: