| Type | Article |
| Authors(s) | Bishop LE. |
| Year | 1977 |
| Title | The american species of Grammitis sect. Grammitis |
| Periodical | American Fern Journal |
| Volume | 67 |
| Page(s) | 101–106 |
| Type | Article |
| Authors(s) | Bishop LE. |
| Year | 1977 |
| Title | The american species of Grammitis sect. Grammitis |
| Periodical | American Fern Journal |
| Volume | 67 |
| Page(s) | 101–106 |