XXiii. GENEBA OE KEENS: 



ticulated; the venules forming unequal areolea, from which 

 proceed free included simple or brachiate recurrent veinlets. 



Fronds simple, membranaceous. Ehizome creeping. The 

 peculiarity of this genus is the production of different kinds of 

 sori on the same frond, a feature which has led M. Fee to 

 suggest that it maybe an abnormal state of Pleopeltis tenuiloris, 

 which it otherwise closely resembles. 



Ex. : D. samarensis, J. 8m. 



35. PABAGBAMMA, Elume, En. Fil. 114 () : M. 



GBAMMITIDIS sp., Blume; PLEOPEITIDIS sp., Blume; DBTOABUE sp., J. 

 Smith; PHYMATODIS sp., J. Smith; POLTPODII sp., Auct. 



Sori non-indusiate, oblong, distinct, parallel with the costa ; 

 the receptacles linear-oblong, immersed, sub-marginal. Veins 

 immersed uniform ; venules anastomosing in elongated sub- 

 hexagonal areoles, from which proceed variously directed free 

 included veinlets. 



Fronds simple, coriaceous. Ehizome creeping. Though usu- 

 ally placed among the Polypodies, the constantly elongated sori 

 parallel with the costa, indicate rather an affinity with the 

 TcenitidecR ; and we gladly revive for it the name Paragramma, 

 formerly applied to it by Blume, by whom these species were 

 considered to form a distinct section of Grammitis. 



Ex. : P. longifolia (Grammitis, SI. ; Drynaria revoluta, J. Sm.J 

 P. decurrens (Grammitis, SI.) 



(d) Veins forming a series of simple arcs each side the costa. 



36. DICBANOGLOSSTJM, J. Smith, Sot. Voy. Herald, 



i. 232, (reduct.) 



CT7SPIDABI.S sp., Fee ; T^NITIDIS sp., Auct. ; PlBBOPSIurs sp., Auct. 



Sori non-indusiate, linear, continuous; the receptacles sub- 

 marginal, superficial, formed of the marginal parts of the arcuate 

 veins. Veins simple, from a central costa, each arching and 

 uniting with the next vein, so as to form a series of oblique 



