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By: Friend, Eleanor - Rusk, Hester W - Vilkomerson, Hilda - Logan, J Harry - Torrey, Raymond H. - Hastings, George TType: ArticleIn: TorreyaVolume: 36Series:Issue: 4Date: 1936Page Range: 100--106Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945Subjects: