vi Preface. 



I have endeavoured to obtain all tlie most recent 

 and correct information regarding tlie geographical 

 distribution and detailed localities of Ferns ; but I am 

 aware errors must have unavoidably crept in, in the 

 enum.eration of so many names. Authors differ much 

 regarding species, but I have coniined myself to those 

 given in the ' Synopsis Klicum,' and only quoted a few 

 synonyms. Whenever I have obtained information 

 from reliable sources, either in MS. or published matter, 

 not given in the 'Synopsis Filicum,' I have cited the 

 authorities. 



The sign $ denotes the only hitherto known localities. 

 I have also made out a series of Tables at the end of 

 the volume, to illustrate further the distribution of 

 Ferns. 



K. M. L. 



