POLYPODIACE^. 289 



8. Alsophila truncata, Sp. Nov. (Tab. 41.) 



A. arborescens ; stipitibus rhachique communi subteretibus furfuraceis 

 muricatis ; frondibus tripinnatis eoriaceis; pinnis oblong o-lanceolatis ; 

 pinnulis breviter petiolulatis linearibus obtusis basi truncatis margine 

 reflexo repando-crenatis ; rhacliibus partialibus costisque subtus squa- 

 mous; venis plerumque farcatis ; soris axillaribus 8-10 in quaque 

 pinnida inter costam et marginem azquidistantibus ; receptaculo vix ele- 

 vato pUoso. 



Hab. Feejee and Samoan Islands ; in mountain forests ; rare. 



Plant arborescent. Stipe firm and nearly round, and, together with 

 the main and rhachis of the primary pinnae, muricated ; the surface 

 beneath its dull brown and farfuracsous coating is glossy, as if var- 

 nished, and of a reddish-brown colour. Fronds large, tripinnate, coria- 

 ceous. Primary and secondary pinnae oblong-lanceolate, acuminate or 

 somewhat acute. Pinnules not over 3 or 4 lines in length, and scarcely 

 a line broad, seated on a very short petiole, linear, with an obtuse point 

 and a truncated base, the reflexed margin repand-crenate. Secondary 

 rhachis furnished beneath with lacerated scales, while the costa 

 of the pinnules beneath is beset with small bullate scales. Veins 

 forked, seldom simple. Sori about equidistant between the costa and 

 margin, on the forking of the veins, and without any evident scale at 

 the base of the slightly elevated hairy receptacle. 



Plate 41. — Fig. 1. Portion of a frond, of the natural size. 1 a. 

 A small portion of the frond, seen from beneath. 1 b. Scale from 

 the rhachis. 1 c, c. Sporangia, — The dissections more or less mag- 

 nified. 



9. Alsophila becurrens, Hook. 



Alsophila decurrens, Hook. Spec. Fil. 1, p. 51. 



Hab. Samoan Islands ; frequent 



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