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By: Spongberg, Stephen A - DeWolf, Gordon P. Jr. - Howard, Richard A. (Richard Alden), - Pelkus, Mildred - Vining, Donald M. - Link, JackType: ReviewIn: ArnoldiaVolume: 33Series:Issue: 5Date: 1973Page Range: 295--308Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard UniversitySubjects: