POLYPODIACE.E. ^l 



3. Diplazium bulbiferum, Sp. Nov. (Tab. 18.) 



2>, rhizomate brevi repente; stipitibus angulatis Mm sulcatis glabris basi 

 paleaceis; frondibus subcoriaceis ovato-oblongis acuminatis pinnatis; 

 pinnis petiolatis apicem versus confluentibus alternis adscendentibus 

 elongato-lanceolatis inciso-lobatis acuminatis basi obliquis cuneatis, 

 lobis subrotundis dentatis; rhachi prolifera; soris plurimis; indusiis 

 membranaceis linearibus integerrimis. 



Hab. Feejee Islands : in the vicinity of Sandalwood Bay. 



Rootstock sliort, black, and creeping. Stipes a foot long, about the 

 thickness of a crowquill, smooth and angular, with a shallow furrow 

 in front, chaffy at the base with a number of long and slender black 

 scales. Fronds a little longer than the stipes, subcoriaceous, ovate- 

 oblong, acuminate, and pinnate. Pinnce at the base rather distant and 

 petiolate, becoming confluent towards the apex, smooth on both sides, 

 the upper surface of a dark green colour and shining, from 3 to 4 

 inches long, and about 6 lines broad, contracting into a sharply ser- 

 rate point ; the rhachis producing in the axils of the upper pinnae one 

 or two proliferous buds, at a distance of 3 or 4 inches below the point. 

 Indusium linear, entire, membranaceous, only binate or double on the 

 lower and exterior venules. 



The nearest relationship of this species appears to be with D. alterni- 

 folium of Blume; whose description is too short for us to say how far 

 the two plants really differ. 



Plate 18. — Fig. 1. Frond, of the natural size. 1 a. Cross section of 

 the stipe. 1 b. Scale from the base of the stipe. 1 c. Section of a 

 pinna, showing a binate indusium. 1 d. Sporangium. — The details 

 more or less magnified. 



* * * Frondes pinnatm, pinnis pinnatijidts. 



4. Diplazium congruum, Sp. Nov. (Tab. 18.) 



D. stipitibus semiteretibus hinc sulcatis paleaceo-hirsutis ; frondibus mem- 



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