78 POLYPODIUM DTCTYOCALT.IS. 



Length of frond from twenty-four to forty-eight inches; seg- 

 ments eight to ten inches long, and nearly two inches broad; 

 colour pale green, not glaucous. 



It differs from P. aureum in having broader segments, in 

 not being glaucous, and in not having the broad oblique sinus 

 of that species. 



For fronds of P. dictyocallis I am indebted to Mr. T. Moore, 

 of the Chelsea Botanic Gardens. 



It may be procured of ^Ir. R. Sim, of Foot's Cray. 



The illustration is from a frond sent by Mr. Thomas Moore. 



