22 



BRITISH FERNS. 



possession of the Linnean Society of London : I have made 

 a careful representation of it in the cut immediately below. 



^> 







The lower figure represents a still more remarkable variety, 

 found by Mr. Mackay, in the Dargle, in the county Wicklow; 

 the frond represented was sent by Mr. Mackay to the late Sir 

 J. E. Smith, and is also in the possession of the Linnean Society: 

 it differs from the preceding variety, in being fertile. 



