The ferns of Great Britain:
- publisher: London : J. E. Sowerby
- creator: Sowerby, John Edward, 1825-1870 Johnson, Charles, 1791-1880
- contributor: Johnson, Charles, 1791-1880.
- Keyword: Ferns Great Britain.
- years: 1855.
- pages: 87 p.
- class: QK527
- download: pdf file