INDEX TO COLOURED PLATES 



PLATE FACING PACE 



I. Athyrium filix-fcemina, var. acrocladon Frontispiece 



II. Adiantum capillus veneris . Co 



III. Allosorus crispus, Gymnogramma leptophylla 66 



IV. Asplenium adiantum nigrum, Asp. fontanum, and Asp. f. refractum 68 

 Y. Asplenium ceterach (ceterach ofHcinarum), Asp. ruta-muraria 72 



VI. Asplenium lanceolatum, Asp. septentrionale, Asp. germanicum 76 



VII. Asplenium marinum, Asp. trichomanes, Asp. viride . 80 



VIII. Athyrium filix-fcemina . . . 82 



IX. Athyrium filix-fcemina, var. corymbiferum 88 



X. Athyrium filix-fcemina, var. multifidum . 108 



XI. Botrychium lunaria, B. 1. Moorei (incisum), Ophioglossum vulgatum, 



O. lusitanicum, and Cystopteris montana 124 



XII. Blechnum spicant, and vars. contractum, c. ramosum, hetero- 



phyllum, imbricatum, ramosum, and subserratum 126 



XIII. Cystopteris fragilis, C. f. var. Dickeana, C. regia . 138 



XIV. Lastrea cristata . . . . 142 

 XV. Lastrea dilatata . . 144 



XVI. Lastrea dilatata, var. lepidota, L. uliginosa 146 



XVII. Lastrea filix-mas .... 148 



XVIII. Lastrea pseudo-mas cristata, L. filix-mas acrocladon 150 



XIX. Lastrea pseudo-mas abbreviata cristata, L.f.-m. cristata angustata, 



L. f.-m. Willisonii . 154 



XX. Lastrea montana, Lastrea thelypteris 158 



XXI. Lastrea rigida, Lastrea remota . 162 



XXII. Lastrea spinulosa, Lastrea oemula 164 



XXIII. Osmunda regalis .... 166 



XXIV. Polypodium calcareum, P. dryopteris, P. phegopteris 168 

 XXV. Polypodium vulgare, P. v. cristatum, P. v. omnilacerum 172 



XXVI. Polypodium vulgare acutum Stansfieldii, P. v. semilacerum 182 



XXVII. Polystichum aculeatum . . 188 



XXVIII. Polystichum angulare . . . 192 



XXIX. Polystichum angulare acuto-gracile, P. ang. alatum 194 



XXX. Polystichum angulare imbricatum, P. ang. lineare, P. ang. truncatum 202 



XXXI. Polystichum angulare cristatum, P. ang. Iripinnatum . 214 



XXXII. Polystichum lonchitis . . . 216 



XXXIII. Pseudathyrium alpestre, P. a. flexile, P. a. laciniatum 218 



XXXIV. Pteris aquilina . 220 

 XXXV. Scolopendrium vulgare . 224 



