The ferns (filicales) : treated comparatively with a view to their natural classification - Bower, F. O. (Frederick Orpen), 1855-1948 (New Delhi : Today & Tomorrow's Book Agency, 1963)
Vol. 1. Analytical examination of the criteria of comparison -- v. 2. The Eusporangiatae and other relatively primitive ferns -- v. 3. The letosporangiate ferns.
First published 1923-1928
Bibliographies at end of chapters
Keywords: Ferns