lixii. GENEEA OF FEBN8 : 



connivently anastomosing at an acute angle, from whose apex is 

 produced an excurrent veinlet, which is either short and free, 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 often echinate. Ehizome short, 

 decumbent. This genus is only remoyed from Polypodlwm (in 

 the sense here adopted) by the connivent anastomosing of the 

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

 dium sometimes separated under the name of Phegopteris. 



Ex. : G.trifarcata(Polypodium,iin .) 

 G. gracilis, Moore and Houlst. 

 G. prolifera, Presl. 

 G. urophylla, Presl. 



G. scolopendrioides, Presl. 

 G. reptans, Presl. 

 G. cnspata (Ctenopteris J. SmJ 

 G. barbata, Fee. 



*** Veins reticulated, without free included veinleta. 



103. DICTYOPTEBIS, Presl, Tent. Pterid. 194. 



DICTYMIA, .7. Smith; POLYPODII sp., Auct.; DETKAKLS sp., Fee; ASPIDII 

 sp. f Elume ; PHBGOPTEBIDIS sp., Metteniut. 



Son 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) from a 

 central costa, the areoles elongated, oblique, without free included 

 veinlets. 



Fronds coriaceous or sub-coriaceous, simple or bi-pinnate. 

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

 The nearly uniform venation, without included free veinlets, 

 distinguishes this group. 



Ex. : D. macrodonta, Prel. \ D. pteroides, Preel. 



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



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

 t Free veinlets excurrent. 



104. PHLEBODIUM, X. Brown, Plant. Jav. Ear. 4 (); 

 J. Smith, Hook. Journ. Sot. iv. 58. 



CHETSOPTBEIS, Link in part: Fee ; POLTPODII sp., Auct. ; GONIOPHLEBII 

 sp., J. Smith ; PLKOPELTIDIS sp., Auct.; M A KGI.V AH i .1: sp., Presl. 



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



