TY - ABST T1 - Journal of the Arnold Arboretum Y1 - 1982 A1 - Arnold Arboretum. KW - North America KW - Periodicals KW - Shrubs KW - Trees PB - Arnold Arboretum, Harvard University [etc.] CY - Cambridge, Mass. : VL - v.63 (1982) JO - Journal of the Arnold Arboretum. ER -