Ixxii. QEITEBA OS FEBITS : 



conniyently anastomosing at an acute angle, &om whose apex is 

 produced an excnrrent veMef, wliicli is either short and &ee, or 

 lengthened to reach and unite with the next pair of the venules. 

 !Fronds herbaceous or sub-coriaceous pinnatifid, pinnate or 

 pinnato-pinnatifid. Spore-cases oiten echinate. Khizome short, 

 decumbent. — This genus is only remoTed from FolypocUum (in 

 the sense here adopted) by the connivent anastomosing of the 

 veins. It is more exactly analogous to that division of Polypo- 

 dium sometimer separated under the name of Fhegopteris, 



Ex.: G.triftircata(Poljpodiran,XMi.^ 

 O. gracilis, Moore and Smdsi. 

 G. prolifera, Tresl. 

 G, urophyUa, Treal. 



G. Ecolopendrioides, iPreal, 

 G. reptfims, Pregl. 

 Gt. crispata (Ctenopteris J. 8m,J 

 G. barbata, Fie, 



* * * Veins reticulated, without free included veinlets. 



103. DICTYOPTERIS, Fresl, Tent. Fterid. 194. 



DicmnA,.r, Smith; PoLTPODn sp.,Aiict.; TysYWiSis sp., J'^e; Aspron 

 sp., Blume; FHEGtOPTSBISls sp., Mettenius, 



Sori non-indusiate, globose or oblong, compital i.e. the recep- 

 tacles uniting several radiating reticulated veinlets, or medial. 

 Veins uniformly reticulated (or sub-pinnately branched) &om a 

 central costa, the areoles elongated, oblique, without &ee included 

 veinlets. 



Pronds coriaceous or sub-coriaceous, simple or bi-pinnat«. 



Sori sometimes marginally serial. Ehizome creeping (? always). 



— The nearly uniform venation, without included free veinlets, 



distinguishes this group. 



Ex. : D. macrodonta, JPreil, 1 D. pteroides, Freal. 



D. attenuata, Fresl. \ D. lanceolata, J, Sm. 



* * * * Veins reticulated, with free included veinlets. 

 + Free veinlets exeurrent. 



104. PHLEBODITJM, F. Brown, Flcmt. Jav. Far. 4 (§)j 

 J. Smith, Boole. Jow/rn. Bat. iv. 58. 



Chbtsopteeis, Link in part : Fie ; Poltpodh sp., Auct. ; Goniophlebii 

 sp., J. Smith; PtEOPBLTlDls sp., Auct.; Kasginabijb sp., Preal. 



Sori non-indusiate, globose or oval ; the receptacles situated 



