Historia filicum [microform] : an exposition of the nature, number and organography of ferns, and review of the principles upon which genera are founded, and the systems of classification of the principal authors, with a new general arrangement; characters of the genera; remarks on their relationship to one another; their species; reference to authors; geographical distribution; etc., etc.
Smith, John, 1798-1888; Fitch, W. H. (Walter Hood), 1817-1892