Cambridge University Press · Macmillan
| title | ISBN-13 | year of publication |
|---|---|---|
| Origin of Land Flora | 978-0-02-841810-0 | 1967 |
| Plant-Life on Land: Considered in Some of its Biological Aspects | 978-1-107-67287-1 | 2012 |
| The Ferns 3 Volume Paperback Set: Volume SET: Treated Comparatively with a View to their Natural Classification | 978-1-108-01319-2 | 2010 |
| The Ferns : Treated Comparatively with a View to their Natural Classification Volume 1 | 978-1-108-01316-1 | 2010 |
| The Ferns : Treated Comparatively with a View to their Natural Classification Volume 2 | 978-1-108-01317-8 | 2010 |
| The Ferns : Treated Comparatively with a View to their Natural Classification Volume 3 | 978-1-108-01318-5 | 2010 |