LIST OF PLATES. 



Fi - 



PLATE I. 



1 Ceterach officinarum 



2 Polypodium vulgare 



PLATE II. -' 



1 Polypodium Dryopteris 



2 - - Phegopteris 



PLATE III. " 



1 Polypodium calcareum 



2 Wooclsia ilvensis 



PLATE IV. 



1 Woodsia hyperborea 



2 Polystichum Lonchitis . 



PLATE V. - 



1 Allosorus crispus 



2 Polystichum angulare .. 



Page. 



100 

 152 



148 

 150 



146 

 181 



179 

 160 



64 

 158 



PLATE VI. - /i6 



l ri &- Page. 



1 Lastrea Thelypteris 136 



2 cristata 116 



PLATE VII. -131 

 1 Lastrea Oreopteris ....... 131 



PLATE VIII. - f 



I Lastrea Filix-mas, and var. 

 cristata 126 



PLATE IX. - ( ^ ^ 



1 Lastrea rigida 132 



2 dilatata 123 



PLATE X. ~/^ 



1 Cystopteris fragilis 106 



2 alpina 104 



