Published in Journal of the Arnold Arboretum, in 1940, in volume 21, pages 67-75

Created: 2011-01-26, modified: 2011-06-21

Published in Journal of the Arnold Arboretum, in 1940, in volume 21, pages 461-489

Created: 2011-01-26, modified: 2011-06-21

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 1, pages 1-24

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 1, pages 32-47

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 1, pages 76-107

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 1, pages 108-109

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 2, pages 115-133

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 2, pages 163-200

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 2, pages 274-275

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1940, in volume 21, issue 4, pages 511-527

Created: 2016-07-07, modified: 2016-07-07