T^NITIDE^. XXXI. 



uniform reticulated ; tlie venules anastomosing in sub-equal hex- 

 agonal areoles, -without included free veinlets. 



Fronds pinnate, dimorphous ; the pinnge articulate, the fertile 

 contracted, their whole margins sporangiferons. Khizome scan- 

 dent. — The specimens to which this name has been given, may be 

 abnormal semi-contracted fronds of some species of Nemo- 

 callis, with which this agrees in eyerything except that it has 

 marginal liaeax ioti; it especially approaches our § ChorizopterU 

 of that genus. 



£x. ; L. pterioides, J, Smitli. 



(c) Veins uniform reticulated, with incVudedfree veinlets. 

 33. DBTMOGLOSSUM, Fresl, Tent. Fter. 227. 



Heteeoptbkis, F6e; Nettbodium, Fie; Paltowitjm, Fresl; Lemma- 



PHTILTJM, Fresl; ACEOSTICHI Sp., Atict.; PtEEIDIS Sp., And.; NOTHOCH- 



LiBirje sp., Auct.; Ptebopsidis sp.^ Desvwux; T^Nillsis sp., Auct.; 

 ViTTAEi^ sp., Kk. and Gr. ; Nifhobolz sp., J. Sm. 



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

 nal or sub-marginal, superficial or slightly immersed. Veins 

 uniform reticulated, obscure; the vemules anastomosing in 

 roimdish or oblong hexagonal areoles, from which proceed free 

 included simple or hamate obtuse ii^nlets. 



Fronds simple, dimorphous, or contracted at the fertile apex, 

 usually coriaceous. Khizome creeping. 



Ex. : D. piloaelloidea, Fr. 

 D. camosum, Sk. 

 D. acrostichoides (Vittaria,.H2;. 

 and Gr,) 



B. lanceolatum, J. Sm. 

 D.Cunninghami {D. camosum, J. Sm. 



non Sk.J 

 D. ellipticam (Pteris, Willd.J 



34. DIBLEMMA, J. Smith, SooTc. Journ. Bot. iii. 339 ; 

 ir. 65. 



T.ffiis'lTrDls sp., Mettenius. 



Sori non-indusiate, superficial, of two kinds : (1) linear, con- 

 tiuuous, seated on a sub-marginal receptacle; and (2), roundish 

 or oblong, irregular, the receptacle seated on the short anasto- 

 mosing Tenules, or the recurrent veinlets. Veims uniform, re- 



