og FILICES. 



4. NlPHOBOLUS ADNASCENS, Kaulf. 



Niphobolm adnaacem, Kaulf. Enum. Fil. p. 124. 



pjy^tm oAimmw, Sw. Syn. Fil. p. 25 & 222, t. 2; Willd. Spec. PI. 5, p. 145. 



Hab. Tahiti, Society Islands. Feejee and Samoan Islands. 



The sori in the present species are small, sunken, crowded, and 

 scattered, intermingled with stellate pedicellate scales, and occupying 

 the upper half of the frond, the margin of which is recurved, the 

 lower half having a prominent costa on the under side. 



5. Niphobolus vapjus, Kaulf. 



Niphobolus varius, Kaulf. Enum. Fil. p. 125; Blume, Enum. PL Jav. fasc. 2, p. 106. 



Hab. Island of Marongas, Sooloo Group. Mangsi Islands. 



This differs from the preceding species principally in its longer, 

 linear-lanceolate fronds, and more prominent smooth costa. 



6. Niphobolus glabee, Kaulf, I. c. 



Hab. Island of Singapore : on trees. 



Rootstock about the thickness of a crowquill, much branched, co- 

 vered with brown peltate scales, which have a dark spot in the centre. 

 Fronds distant, 8 to 12 inches long, linear-lanceolate, attenuate at 

 both ends ; the margin revolute ; upper surface smooth, the lower with 

 a dense, pale yellow, stellated pubescence. Costa above plane, beneath 

 prominent and somewhat triangular. Sori confined to the upper half 

 of the frond, small and very much crowded towards the point. 



This is readily distinguished from any of the foregoing species, by 

 the fronds being longer, more linear in form, attenuated to both ends, 

 and with a smooth upper surface. 



