18£ ALSOPHILA FEROX. 



Rachis, stipes, and even midrib of pinnae aculeate, with long 

 sharp thorns. 



Length of frond from five to seven feet. 



Fronds terminal; caudex erect and often branching. 



Sori copious, but not wholly covering the segments. 



For fronds my thanks are due to Mr. J. Henderson, of 

 Wentworth, and Mr. Norman, of Hull. 



It may be procured of Messrs. Veitch, of Chelsea; Rollisson, 

 of Tooting; Jackson, of Kingston; Kennedy, of Covent Garden, 

 Sim, of Foot's Cray; and Booth, of Hamburg. 



The illustration is from Mr. J. Henderson's frond. 



