172 



F I L I C E S. 



55. ASPLENIUM DUBIUM, Sp. Nov. 



A. rhizomate repente; stipitibus angulatis parce paleaceo-liirsutis ; fron- 

 dibus rnembranaceis glabris deltoideo-ovatis bi-tripinnatis ; pinnis sub- 

 oppositis patentibus oblongo-lanceolatis ; pinnulis linear i-oblong is inciso- 

 pinnatifidis, laciniis linearibus obtusis; rliachi compressa marginata. 



Hab. Sandalwood Bay, Feejee Islands. 



This is a Fern apparently belonging to the Darea section of Asple- 

 niwm, having a black creeping rootstock, and angular, sparsely-palea- 

 ceous hirsute stipes, with small, scattered, membranaceous, smooth, 

 deltoideo-ovate, bi-tripinnate fronds. The pinnae are subopposite, 

 spreading, and oblong-lanceolate in form. Pinnules linear-oblong and 

 inciso-pinnatifid, with linear and obtuse segments, and a compressed 

 margined rhachis. 



Our specimens are entirely destitute of sori. 



§ 4. ATHYRIUM, Roth. 

 * Frondes pinnatm. 



56. ASPLENIUM DEPARIOIDES, Sp. Nov. 



A. stipitibus angulatis hinc sulcatis ; frondibus rnembranaceis glabris 



pinnatis; pinnis alternis sessilibus lineari-lanceolatis pinnatipartitis, 



apice acuminato dentato, laciniis oblongis obtusis subfalcatis dentatis ; 



rhachi prolifera; venis pinnatis; soris oblongis remotis submargina- 



libus. 



Hab. Sandwich Islands; on the Kaala Mountains, Oahu. 



Stipes a foot or a foot and a half long, about the thickness of a goose- 

 quill, smooth, angular, sulcate in front. Fronds 3 feet and upwards in 

 length, membranaceous, smooth, elongated-lanceolate in circumscription, 

 pinnate. Pinnm alternate or subalternate, spreading, sessile, linear- 

 lanceolate, deeply pinnatifid, from 6 to 8 inches in length, terminating 



