Portion of mature Frond, 



POLYPODIUM TETRAGONUM. 



SWARTZ. KUXZE. LiNNiEUS. SCHKUHR. 



PLATE XLVr. 



Aspidium cicutarium, 

 Pohjpodmm stibtetragonwn, 



' ' Smithianum, 



Goniopteris tetragona, 



" subtetragonum, 



Op Gakdests. 

 Link. 

 Hewaeb. 

 Peesl. Pee. 

 Peesl. Fee. 



Polypodium — Polypody. 



7<?fo-«_^o?ii««— Pour-angied. 



In the Section Goniopteris of Authors. 



A HANDSOME Fero, seldom to be found in any excepting the 

 best collections. 



Introduced into the Royal Gardens, Kew, from the Royal 

 Gardens of Berlin in the year 1841. 



An evergreen stove species. 



A native of South America, and the West Indies. 



Best known as the Goniopteris tetragona. 



Caudex short, creeping, with terminal-adherent fronds. 



Fronds of two kinds, the barren shorter, more spreading, with 

 broader pinnae and pinnules, the fertile more erect, taller, and 

 somewhat contracted. Sterile fronds ovate, often broad at the 



