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By: Copeland, J J - Moldenke, Harold N. (Harold Norman), - Dole, W Herbert - Roever, W E - Harger, E BType: ArticleIn: TorreyaVolume: 39Series:Issue: 6Date: 1939Page Range: 177--183Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945Subjects: