6 F I L I C E S. 



obtusis sinuato-pinnaiifidis basi attenuatis, laciniis alternis rotundato- 

 triangularibus, costa nigra ; venis simplicibus ; soris plants orbicularis 

 solitariis ; sporangiis cum glandulis clavatis intermixtis. 



Hab. Sandwich Islands : in mountains, on trees. 



Rootstock caespitose, short, erect and squamose ; the rootlets black, 

 capillaceous and branching. Stipes short, almost wanting. Fronds 4 

 to 6 in number, membranaceous, slightly curved or undulated, 3 to 5 

 inches long, linear-lanceolate and obtuse at the point ; the base atte- 

 nuated ; margin sinuately pinnatifid, and in many of the fronds, 

 bluntly serrate towards the point. Lobes alternate, rounded-trian- 

 gular, each bearing a single round sorus close to the black, slender, 

 and prominent costa. Veins simple and sunk. Sp>orangia intermixed, 

 with clavate glandular hairs. 



Allied in habit to the Grammitis myosuroides of Swartz; but the 

 fronds are attenuated at the base, and the sori strictly those of Poly- 

 podium. 



Plate 1. — Fig. 4, 4. Plants, of the natural size. 4 a. Section of a 

 frond, with a single sorus. 4 b. Glandular hairs mixed with the spo- 

 rangia. 4 c. Sporangium. The dissections all more or less magnified. 



7. Polypodium contiguum, Sp. Nov. (Tab. 2.) 



P. rhizomate brevi repente ; frondibus stipitatis coriaceis glabris suhfal- 

 catis profimde pinnatifidis, laciniis oblongo-linearibus alternis integris 

 obtusis ; venis obscuris simplicibus ; soris approximatis ovalibus planis 



setosis. 



Hab. Muthuata Mountains, Feejee Islands j at an altitude of 2,000 

 feet. 



The rootstock of this species, contrasted with the size of its fronds, 

 is very thick and short, creeping, densely imbricated with light-brown, 

 linear, attenuated, reticulated scales. Fronds on a short, partially 

 winged stipes, approximate, from 3 to 5 inches long, subfalcate, their 

 circumscription lanceolate, deeply pinnatifid, and narrowing gradually 



