| Publication Type: | Journal Article |
| Year of Publication: | 1952 |
| Authors: | E. B. Copeland |
| Journal: | Philippine Journal of Science. Manila |
| Volume: | 81 |
| Pagination: | 1-47 |
| Accession Number: | 589 |
| Keywords: | Ferns |
| Short Title: | Philipp. J. Sci. |
| Publication Type: | Journal Article |
| Year of Publication: | 1952 |
| Authors: | E. B. Copeland |
| Journal: | Philippine Journal of Science. Manila |
| Volume: | 81 |
| Pagination: | 1-47 |
| Accession Number: | 589 |
| Keywords: | Ferns |
| Short Title: | Philipp. J. Sci. |