Portion of mature Frond. — under side. 



POLYPODIUM PECTUSTATUM. 



LiNN^us. Plumier. J. Smith. Moore and Houlston. 

 Presl. Kunze. Schkuhr. Plukenet. Fee. 



PLATE XXI. VOL. II. 



"Polypodiwm — Polypody. 



Pectinatum — Qomb-leaved. 



The Polypodium pectinatum of Linnseus is a somewhat similar 

 looking species to the P. paradisece of LangsdorfF and Fischer, 

 figured in the present volume, Plate I., and described at page 

 1, and also bears some resemblance to the more dwarf P. plu- 

 mula of Humboldt and Bonpland, figured on Plate XLI., vol. 

 1, and described on page 123: this latter Fern seems to be the 

 P. Schkuhrii of Paddi. 



An evergreen stove species. 



Native of Tropical America and the West Indies. 



Introduced into this country in the year 1793. 



Fronds sub-pinnate, the pinnee being linear, parallel, and hori- 

 zontal. Pubescent, lateral, articulated on a creeping rhizoma. 



Length of frond from twelve to thirty inches; colour dull 

 green. 



Stipes and rachis black. 



Sori circular, uniserial; colour a rich yellowish brown, and 

 covering the whole under surface. 



VOL. IL G 



