BRITISH FERNS 
LXXII 
CRISTATO-GRACILE COWPER ( Woll.) 
Mr. Richard Cowper, South Kensington. Dorset. 1874. 
їй AL йо 
Syn. PERCRISTATUM COWPER. 
Did not survive its discovery more than two years ;—the more 
to be regretted as it gave promise of being the most elegant form 
of this class. 

