70 POLYPODIUM MORBTLLOSUM. 



Form of frond ovate, deeply pinnatifid, membranaceous; the 

 segments alternate, oblong-lanceolate in form, and acute. 



Veins small and reticulated. 



Sori minute, immersed between the venules; biserial, and 

 covering the whole frond. Upper surface of frond covered 

 with minute white pubescence. Midrib of frond crowded with 

 brown hairs, especially near the base, where they are long. 



Veins green, except near the base, where they are reddish 

 brown. 



E-hizoma creeping, densely scaly, and whitish near the 

 extreme end. 



Length of frond from three to four feet; colour light green. 

 Substance of the frond stiff. 



The present species has been confused with another very 

 similar Fern, the Polypodium coronans of Wallich, to be here- 

 after described. 



For plants my thanks are due to Messrs. Rollisson, of Toot- 

 ing, and Booth, of Hamburg; and for fronds to Mr. Hen- 

 derson, of Wentworth; Messrs. Booth, of Hamburg; and Mr. 

 Norman, of Hull. 



It may be procured, although an uncommon and rather 

 expensive species, from Messrs. Rollisson, of Tooting; R. Sim, 

 of Foot's Cray; E. G. Henderson, of the Wellington Nursery; 

 Veitch, Jun., of Chelsea; A. Henderson, of Pine-apple Place; 

 Kennedy, of Covent Garden; and Booth, of Hamburg. 



The illustration is from a plant in my own collection. 



