74 



POLYPODIUM EFFUSUM. 



The segments are pinnatifid, the lower ones being widely apart; 

 the veins of the frond pinnately forked. 



Sori round and medial. 



Stipes covered with scales, being densely covered near the 

 rhizoma. 



Length of the frond from three to five feet. 



My thanks are due to the Curator of the Cambridge Botanic 

 Gardens, and to Messrs. Eollisson, of Tooting, for plants of 

 P. effusum, and to Mr. J. Henderson, for fronds. 



It is in the catalogues of Messrs. Rollisson, of Tooting; Veitch, 

 Jun., of Chelsea; Parker, of Holloway; Sim, of Foot's Cray; 

 A. Henderson, of Pine-apple Place; Kennedy, of Covent Gar- 

 den; Masters, of Canterbury; and Booth, of Hamburo-h. 



The illustration is from a plant in my own collection. 



