112 PTEK1S UMBROSA. 



Fronds lateral or terminal, adherent to a brief creeping 

 rhizoma. 



Sori continuous, extending to within an inch of the apex of 

 the segments, and along the decurrent base; when young 

 green, afterwards reddish brown, and reflected over the edge. 



Length of frond from two to three feet; colour splendid 

 bright green. In my plants the barren fronds are two feet 

 long, having a stipes one foot three inches in length; the 

 fertile fronds three feet three inches, having a stipes two feet 

 in length. 



Stipes on the upper side flat and fluted, lower side circular, 

 colour of under side brownish, upper side mostly green; 

 darker and scaly near the base. 



My thanks are due to Mr. Henderson, of Wentworth, for a 

 plant of this species; and to Mr. Norman, of Hull, for fronds. 



It may be procured from Messrs. Sim, of Foot's Cray; 

 Parker, of Hollo way: Rollisson, of Tooting; A. Henderson, of 

 Pine-apple Place; Yeitch, Jun., of Chelsea; Booth, of Ham- 

 burg; Kennedy, of Covent Garden; and Stansfield and Son, 

 of Todmorden. 



In very large species, it has been found impossible to figure 

 a whole frond without reducing it so materially in size, that it 

 is scarcely to be recognised; it has therefore been deemed 

 more advisable in these instances to figure portions only of the 

 fronds. 



The illustration is a portion of a frond from a plant in my 

 own collection. 



