122 ACROSTICHUM FRIGIDUM. 



The frond, which is simple, is lanceolate-acuminate in form, 

 rich green in colour, but rendered somewhat glaucous by the 

 great number of stellate whitish scales which cover the whole 

 upper surface of the frond; beneath these scales are brownish 

 red. 



Yeins internal, indistinct, and forked. 



Stipes and rachis scaly; midrib flat above, rounded and 

 prominent on under side of frond. 



Sori am.orphous, and covering the whole of the under side 

 of the frond. Fertile frond contracted. Sometimes the lower 

 portion of a frond will be fertile, whilst near the apex it is 

 barren and broad. 



Length of frond about fifteen inches, of which the lower 

 three inches is the stipes. 



For a plant my thanks are due to Messrs. Booth, of Hamburg; 

 and for fronds to Mr. G. Norman, of Hull, and Mr. Joseph 

 Henderson, of Wentworth. 



Included in the Catalogues of Messrs. Yeitch, of Chelsea; 

 Rollisson, of Tooting; Jackson, of Kingston; Sim, of Foot's 

 Cray; and Booth, of Hamburg. 



The illustrations are from a plant in my own collection. 



