Published in Journal of the Arnold Arboretum, in 1979, in volume 60, issue 3, pages 396-401

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 2, pages 167-218

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 2, pages 219-271

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 2, pages 322

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 1, pages 8-37

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 1, pages 154-162

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 1, pages 163-165

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 3, pages 323-349

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 3, pages 350-366

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 3, pages 367-376

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 3, pages 377-381

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 3, pages 382-385

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 4, pages 477-503

Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 4, pages 523-542

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 403-444

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 445-476

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 504-514

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 515-522

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 127-153