THE EKIAN OB DEVONIAN FORESTS. 



73 



Fie. 23. — Elian ferns (Kew Bnmswick). b, Cydopterw vaUda, and 

 pinnule enlarged. D, Sphenofttris margiaata, and portion enlarged. 

 B, 8pheno^ent Hartii. o, HymenophylUta euHUoout. h, Hymeno- 

 phyUUtt Gersdorgn, and portion enlarged, i, Alethopterie diecrepans. 

 K, Peeo^erU semdata. x, Peeopteris preaosa. u, AlAhopterit Psrleyi. 



