68 POLYPODIUM MUSiEFOLTUM. 



pale green, with a profusion of dark reticulated veins, ending 

 before reaching the margin of the frond. Occasionally pinnatifid 

 fronds. Scarcely any stipes. 



Near the base of the frond scales, most of which become 

 shed in mature fronds. 



Rhizoma creeping. 



This Polypodium is yet a rare Fern, and, I believe, has not 

 fructified in this country. It is somewhat similar to that of 

 P. ireoides. 



A plant of the present species I received from Messrs. Booth, 

 of Hamburg, under the name of Acrostichum alatum. 



It is to be procured of Messrs. Booth and Sons, of Hamburg, 

 and of Mr. B. Sim, of Foot's Cray. 



The illustration is from the plant in my own collection. 



