Bierhorst, D.W. 1977: The systematic position of Psilotum and Tmesipteris. Brittonia 29: 3–13.
Provider Properties
Reference Properties
Provider
| Bierhorst, D.W. 1977: The systematic position of Psilotum and Tmesipteris. Brittonia 29: 3–13. |
| Bierhorst, D.W. 1977: The systematic position of Psilotum and Tmesipteris. Brittonia 29: 3–13. |