POLYPODIACEiE. 5 



Hab. Sandwich Islands. Mount Maijaijai, Luzon, Philippine 

 Islands. 



In many of our specimens, the stipes are thrice the length of those 

 shown in the figure quoted above, with the sori often continuing 

 downwards to the base of the fronds ; added to which, we find the 

 sporangia to be echinate. 



5. Poltpodium minimum, Sp. Nov. (Tab. 1.) 



P. ccespitosum ; frondibus linearibus sinuato-pinnatifidis glabris, apice 

 integro crenato sorifero, lobis alternis subrotundis ; venis simplicibus ; 

 soris ovcdibus planis (demum) confluentibits. 



Hab. Sandwich Islands : on trees. 



Rootstoch short, ccespitose and squamose, with black and wiry roots. 

 Fronds 3 to 6 in a tuft, slightly undulate and smooth, usually about 

 2 inches long, linear and sinuately-pinnatifid, w T ith rather more than 

 a third of their length towards the point entire, slightly crenate and sori- 

 ferous ; the costa usually black and prominent. Veins simple and 

 evident to the naked eye. Sori oval, of a dark-brown colour, ulti- 

 mately becoming confluent, and concealing the under surface and costa 

 of the frond. Sporangia seated on a very long pedicel. 



This bears a very marked resemblance to the Grammitis sermdata 

 of Swartz ; but its rootstock is thicker and constantly much shorter, 

 the fronds less erect, with the lobes at the base rounded, towards the 

 point crenate. 



Plate 1. — Fig. 3, 3. Plants, of the natural size. 3 a. Section of 

 the fertile part of a frond. 3 b. Sporangium. The dissections more 

 or less magnified. 



6. POLYPODIUM HAALILIOANUM,* Sp. Nov. (Tab. 1.) 



P. ccespitosum ; frondibus undidatis membranaceis lineari-lanceolatis 



* In memory of M. Haalilio, an intelligent chief of the Sandwich Islands, who visited 

 this country a few years ago, and died soon after his return to his native country. 



2 



