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By: Cleland, Ralph EType: ArticleIn: Annals of botanyVolume: 33Series:Issue:Date: 1919-07Page Range: 323--351Publication Info: London, Academic Press [etc.],Subjects:
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By: Collins, Frank S. (Frank Shipley), - Cleland, Ralph EType: ArticleIn: RhodoraVolume: 20Series:Issue:Date: 1918Page Range: 141--145Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Cleland, Ralph EType: ArticleIn: American journal of botanyVolume: 9Series:Issue: 7Date: 1922-07Page Range: 391--413Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-Subjects: