18 POLYPODIUM PUSTULATUM. 



Polypodium — Polypody. Pustulatum — Pimpled. 



In the Section Drynaria of Authors. 



A SINGULAR Fern, which has one-half of its fronds simple 

 and undivided. A Fern not difficult to cultivate with ordinary 

 care, but seldom seen in collections. It is more singular than 

 handsome, of dwarf habit, and having a short creeping rhizoma. 

 It bears its fronds crowded together, and standing upright from 

 the rhizoma. 



An evergreen greenhouse Fern. 



Native of New Zealand. 



It was first introduced into the Royal Gardens, Kew, in the 

 year 1826, having been brought there by Mr. Allan Cunningham. 



Fronds erect, glabrous, simple, or pinnatifid, the segments 

 being lanceolate-acuminate in form, and membranous. 



Fronds lateral, being articulated on a csespitose creeping 

 rhizoma. Thin rhizoma. 



Veins darker in colour than the frond. 



Sori round, uniserial, and submarginal. 



Length of frond from six to twelve inches, colour pale green. 



Perhaps best known as the Polypodium ccBspitosum. 



My thanks are due for plants of this Fern, to M. Schott, 

 Director of the Imperial Gardens of Schonbriinn, near Vienna; 

 to Messrs. A. Henderson, of Pine-apple Place; Rollisson, of 

 Tooting; Masters, of Canterbury; and Sim, of Foot's Cray; 

 and for fronds to Mr. J. Henderson, of Wentworth; and Mr. 

 Norman, of Hull. 



The illustration is from a frond sent by Mr. Henderson, of 

 Wentworth. 



