49 BLECHIVIJ^M, tinn6. 



Sori long, linear, 1 on each side, + close to the costa, continuous or 

 sometimes interrupted. Iridusium of the same shape, attached at the outer 

 side of the sorus, opening towards the costa. 



Gaudex mostly erect, sometimes subarborescent. Stipes tufted, not arti- 

 culate to the caudex. Fronds simple or commonly divided; veins free, but 

 those of the fertile fronds united near the base by a costal strand occupied 

 by the sori. Hk. Bk., Syn. Fil., tab. IV, fig. 34;.Diels, in Engl. & Prantl, 

 Nat. Pfl.Fam., V, fig. 130. 



Tropical and subtropical. 



Arrangement of the sections. 



$ 1. EUBLECHNUM. Fronds erect. 



§ 2. SALPICHLAENA. Fronds twining. (Not in Malaya). 



§ 1. EUBLECHNUM. 



I. Fronds simple. (1) B. Treubii. 



§..±. Fronds pinnati/id. 



*. Stipes naked. (2) B. nitidum. 



^.>1«. Stipes scaly and muricate in the lower part. (3) B. cartilagineum. 

 f.f.l. Fronds pinnate. 

 9. Pinnae entire. 



3. Pinnae narrowed at the base. (4) B. Finlaysonianum. 



3.3. Pinnae rounded, truncate or cordate at the base. 



4. Pinnae auricled at the base. (5) B. Blumei. 



S:.A. Pinnae not auricled. (6) B. orientale. 



^^. Pinnae serrate or finely incised. 



jjc. Pinnae narrow at the base. (7) B. serrulatum. 



if.,i(.. Pinnae broad at the base. (8) B. egregium. 



FlLICBS. ^^ 



