204 F I L I C E s. 



Hab. Orange Harbour, Tierra del Fuego : among loose rocks. 



The specimens are smaller and more condensed than those figured 

 by Bory St. Vincent ; the fronds being only 3 or 4 inches high, and 

 much smaller than the Magellanic form so admirably figured by Dr. 

 Hooker. 



# * Frondes bipinnata?. 



4. Poltstichum Haleakalense, Sp. Nov. (Tab. 28.) 



P. stipite paleaceo et hirsute; frondibus bipinnatis; pinnis alternis 

 subsessilibus oblong o-lanceolatis ; pimmlis rhomboideo-oblongis acutis 

 inciso-lobatis, lobis spinidoso-dentatis ; rhachi costa venisque paleaceo- 

 villosis; soris magnis ; indusio orbicidari peltato membranaceo lacero. 



Hab. Sandwich Islands; on Mouna Kea, Hawaii, and Mouna 

 Haleakala, East Maui. 



Rootstock globose and paleaceous. Stipe from 4 to 6 inches long, 

 about the thickness of a crowquill, angular, of a pale straw-colour, 

 partially covered by long lanceolate, attenuated, spinulose-dentate 

 paleo3, intermingled with hairs. Fronds from 6 inches to a foot in 

 length, in circumscription elongated-lanceolate, somewhat flaccid 

 and slender, but erect, bipinnate. Pinnoe alternate, oblong-lanceolate, 

 seated on a very short petiole, the inferior ones rather distant and 

 deflexed. Pinnules about half an inch in length, somewhat rhombic- 

 oblong, acute, the superior half the larger; lower pinnules deeply 

 pinnatifid; the upper ones incisely lobate; the lobes terminated by sharp 

 teeth. Rhachis, costa, and veins thickly beset with paleaceous hairs. iSori 

 large, scattered, confluent with age, and concealing nearly the whole 

 of the under surface of the pinnules; the indusium membranaceous, 

 orbicular and peltate, its margin lacerated. 



This is allied to the following species, from which however it is suf- 

 ficiently distinct, in the much smaller size of the whole plant, the 

 shorter pinnae, and the deeper incised pinnules. 



Plate 28. — Fig. 1. Plant, of the natural size. 1 a. Pinnule, 



