Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 35-71

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 137-183

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 185-240

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 241-257

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 259-268

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 323-334

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 357-359

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 361-445

Published in Journal of the Arnold Arboretum, in 1987, in volume 68, pages 461-469

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 1, pages 1-34

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 1, pages 73-104

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 1, pages 105-131

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 1, pages 133-136

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 3, pages 269-307

Published in J.Arnold Arbor, in 1987, in volume 68, issue 3, pages 309-322

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 3, pages 335-341

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 3, pages 343-348

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 3, pages 349-355

Published in Journal of The Arnold Arboretum, in 1987, in volume 68, issue 4, pages 447-459