185 



(') Main veins conspicuous almost to 

 the margin ; veinlets anastomosing 

 at right angles, from which pro- 

 ceed 1-2 free veinlets with clavate 

 apices. 



5. G. subcrenata. 



(Hi) Main veins indistinct ; veinlets 

 meeting at acute angle from 

 which proceeds a veinlet which 

 is either free or joined to the 

 veinlet above ; marginal veinlets 

 free terminating in a dot within 

 the margin. 



6. G. presliana. 



i. Gymnopteris variabilis Bedd. 

 Rhizome creeping, scaly. Sterile frond a 

 foot or more long and i-2j inches wide, simple,, 

 entire, lanceolate, base gradually narrowing 

 into the stipe, apex acuminate or acute. Fer- 

 tile frond much contracted, often broader with 

 under-surface covered with sori. Surfaces 

 naked. Texture thin, herbaceous. The main 

 veins proceeding from the midrib distinct 

 almost to the margin, sometimes indistinct \ 

 meshes with free included veinlets. 



