| Title | Our Native Ferns and how to Study Them, with Synoptical Descriptions of the North American Species... Edition 4 |
| Abbreviation | Native Ferns, ed. 4 |
| Authors | L. M. Underwood |
| Publication Dates | 16 Sep 1893 |
| TL2 | 15.550 |
| Title | Our Native Ferns and how to Study Them, with Synoptical Descriptions of the North American Species... Edition 4 |
| Abbreviation | Native Ferns, ed. 4 |
| Authors | L. M. Underwood |
| Publication Dates | 16 Sep 1893 |
| TL2 | 15.550 |