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By: Godfread, Carolyn - Barker, William T.Type: ArticleIn: RhodoraVolume: 77Series:Issue:Date: 1975Page Range: 160--161Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Barker, William T.Type: ArticleIn: The University of Kansas science bulletinVolume: 48Series:Issue: 14Date: 1969-10-17Page Range: 525--584Publication Info: [Lawrence] University of Kansas [1926-1996]Subjects:
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By: Barker, William T.Type: ArticleIn: RhodoraVolume: 73Series:Issue:Date: 1971Page Range: 58--59Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects: