Published in Journal of The Arnold Arboretum, in 1922, in volume 3, issue 4, pages 182-207

Created: 2016-07-07, modified: 2025-12-17

Published in Journal of The Arnold Arboretum, in 1922, in volume 3, issue 4, pages 233-238

Created: 2016-07-07, modified: 2025-12-17