Portion of Pinna, (magnified.) 



HYMENOPHYLLUM UNILATERALE. 



WlLLDENOW. BORY. NEWMAN. SOWERBY. MOORE. 



PLATE VI. — A AND B. VOL. VIII. 



Hymeno'pTiyllum Wilsoni, 



Tunbridgense, 

 peltatum, 

 Menziesii, 

 Meyeri, 

 TricJiomanes peltaium, 



" Tunbridgense ; 



Hooker and Arnott. 

 Sprengel. Wilson. 

 Babington. Deakin. 



SCHKUHR. KuNZE. 



Desvaux. 



Presl. 



Presl. 



POIRET. 



Bolton. 



Hymenophyllum — Membrane-leaved. 



Unilaterale — One-side. 



Wilson's Film Fern is a somewhat similar- looking Fern 

 to Plate V. — B, darker in colour, and readily told from H. 

 Tunbridgense by the form of the valves; in H. unilaterale they 

 are ovate and convex, and the margin is even; whilst in H. 

 Tunbridgense the edge is spinulosely serrate, and the valves are 

 rounder and flatter. 



