POLYPODIACEvE. I45 



We have little doubt that this is the Asplenium diplazioides of the 

 authors of the Botany of Beechey's Voyage. The species is a hand- 

 some one, with a habit much like that of D. arborescens of Swartz, 

 and the plant altogether is as large as that showy species. The lower 

 and exterior venule of the segments usually produces a binate indu- 

 sium. 



10. DlPLAZIUM SPECIOSUM, Sp. Nov. 



D.frondibus magnis bipinnatis glabris supra nitidis ; pinnis oblongis 

 acu?ni?iatis ; pinnulis alternis, infer ioribus subpetiolatis, superior ibus 

 sessilibus confluentibus, omnibus oblongo-lanceolatis acuminatis lobato- 

 dentatis bad truncato-cuneatis, lobis latis truncatis dentatis ; rhachi 

 cum costa lazvi supra sulcata; venulis oblique parallelis, infimis tantum 

 soros binatos gerentibus ; indusio angusto lineari lacero. 



Hab. Island of Savaii, Samoan Group. 



Fronds bipinnate, 6 to 8 feet long, glabrous, shining above ; the divi- 

 sions rather distant and spreading, the primary ones terminated by a 

 long, narrow, acuminated point. Pinnules alternate, spreading at right 

 angles with the secondary rhachis ; the lower ones on a short petiole j 

 towards the point they become sessile and confluent; they are usually 

 3 inches long, by 8 lines broad, oblong-lanceolate, acuminate, the point 

 serrate, the margin lobate-dentate, with a somewhat truncate-cuneate 

 base ; the lobes short, broad, and truncate. Rhachis and costa on the 

 posterior side smooth and rounded, while in front the former is fur- 

 nished with a double, the latter with only a single groove. Venules 

 obliquely parallel : the lower opposite pair of each fascicle terminate in 

 the base of the narrow sinus, and bear on their sides binate sori; the 

 outer venules bear a simple sorus only. Indusium narrowly linear, 

 lacerate on the margin. 



This is a very handsome, and, so far as we can ascertain, an un de- 

 scribed species. Its nearest affinity is, we think, with the D. dila- 



tatum of Blume. 



37 



