Plate No. 8. 



t. 2 m Phegopteris Phcgopteris; l = a leaf, X H\ 2 = a portion of a 

 leaflet, X 1 ' j. 3, 4 = PhtyOpteriS Dryoptcris; 3 = a leaf, X Hi 4 = a 



leaflet or 1< af -lobe, Xl^. 5, 6 = Ph yopterU ulpestris; 5 = a primary 

 leaf-division, x 1; 6 = a leaflet or leaf-lobe, X IH- 



107 



