POLYPODIACE^. 181 



Hab. Feejee Islands : in forests, vicinity of Sandalwood Bay. 



Stipes of a glossy-black colour, smooth, angular, with a shallow 

 groove in front, stout and paleaceous at base, tapering gradually 

 to the base of the frond, varying from 12 to 20 inches in length. 

 Fronds membranaceous, about equal in length with the stipe, trian- 

 gular-oblong, and bipinnate at the base. Pinnae petiolate and ascend- 

 ing, pinnate at the base, pinnatifid towards the summit, and termina- 

 ting in an acuminate entire point. Pinnules alternate, oblong-lanceo- 

 late, acuminate or acute, with an unequal cordate base; the margin 

 lobate-sinuate ; the upper surface with slight protuberances opposite 

 the sori. Rliacliis and costa above clothed with a short brown pubes- 

 cence. Sori small, numerous, usually produced in two rows between 

 the transverse primary veins, and in some specimens they have a 

 scattered appearance, furnished with a peltate, orbicular, crenate indu- 

 sium. In var. /3. the fronds are strictly ternate, with the leaflets 

 pinnate at the base; the terminal one sometimes two-parted; but 

 between this and the bipinnate form, we have intermediate grades in 

 the divisions of the fronds, which renders it evident that this is only 

 an extreme state of the species. 



57. SAGE N I A, Presl. 



(Aspipii Spec. Auct.) 



1. Sagenia Hippocrepis, Presl. 



S. stipitibus semiteretibus hinc sulcatis basi paleaceis; frondibus pin- 

 natis; pinnis ovato-oblongis seu oblongo-lanceolatis apicem versus 

 decurrentibus et confiuentibus, inferioribus petiolatis ml sessilibus 

 pinnatifidis, laciniis lanceolato-oblongis lobato-sinuatis, lobis dentatis; 

 rhachi venis mar ginib usque pilosis; soris sparsis; indusio orbiculari 

 margine parum undulato. 



Sagenia Hippocrepis, Presl, Tent. Pterid. p. 86, t. 2, f. 24 & 25; Hook. Gen. Fii. 



t. 53, f. A. 

 Aspidium Hippocrepis, Sw. Syn. Fil. p. 51; WiLd. Spec. PI. 5, p. 235. 



Hab. Sandwich Islands : in mountain forests. 



46 



