136 IN 



filix-mas, 66, Plates 9, 67, 75 ; 

 oreopteris, 78, Plates 80, 83, 84 ; 

 remotum, 75 > rigidtim, 68, Plates 

 69, 77 ; spinulosum, 71, Plates 7-$, 

 81 ; thelypteris, 76, P/atef 78, 86 



OAK Fern, 28, 81, 85 



Oblong Woodsia, 55. Plates 43, 59 



One-sided Filmy -fern, 17. Plates 



Oosphere, $ 



Ophioglossece, 94 



Ophioglossum lusitanicum, 96, Plate 



106 ; vulgatum, 94, Plates 103, 



104 



Osmund, 93 

 Osmunda regalis, 91. Plates 96, 



98, loo, 102 

 Osmund Royal, 94 

 the Waterman, 94 



PADDIE-PIPE, 115 



Paddock-pipes, 113, 115 



Paddow-pipe, 115 



Parsley Fern, 28. .P/ato 23, 25 



Pepper-grass, 101 



Pepper-moss, 102 



Petty-fern, 43 



Pewter- wort, 116 



Pillwort, 100. Plates 107, 1 1 1 



Pilularia globulifera, IOO. Plates 

 107, III 



Pinnate fronds, 1 1 



Pinnatifid fronds, 1 1 



Polypodies, 80 



Polypodium alpestre, 88, Plates 94, 

 99 > dryopteris, 85, Jfrto 92, 95 ; 

 phegopteris, 83, /Yato 89, 91, 93 ; 

 robertianum, 87, /Yate 97 ; vul- 

 gar*, 80, Plata 85, 87, 88, 90 



Prickly Buckler-fern, 71. />/to 



Club-moss, 127. Plate 139 



Shield-fern, 63. Plates 60, 6S 



Prothallium, 4 



Pseudathvrium, 89 



Pteridop'hyta, 13 



/tern aquilina, 24. Plates 19, 21, 



22, 24 

 Puddock-pipes, 113 



QUILL WORTS, 128 



RACHIS, 10 



Rigid Buckler-fern, 68. /Vafcr 69, 



77 



Robin Hood's Hatband, 121 

 Rock Brakes, 28 

 Rough Horsetail, 115 



Spleenwort, 32 



Royal Fern, 91. Plates 96, 98, loo, 



IO2 



Royal Moonwort, 94 

 Running Moss, 121 

 Rustyback, 50 



ST. CHRISTOPHER'S Herb, 93 

 Savin-leaved Club-moss, 124. 



Plates 132, 133 

 Scale Fern, 50 

 Scaly Spleenwort, 48. Plates 42, 



44,48 

 Scolopeiidrium tfufgare, 51. Plates 



44,47, 52, 54 

 Scouring Rush, 116 

 Scrub-grass, 116 

 Sea Fern, 40. Plates 35, 41 

 Sea Spleenwort, 40. Plates 35, 41 

 Seaweed-fern, 53 

 Selaginella selagin aides, 127. Plates 



130, 139 



Shave-grass, no 

 Shave-weed, 116 

 Shield Ferns, 60 

 Shoeless Horse, 100 

 Slender Gymnogram, 90. Plates 



96, 101 

 Small Adder's-tongue Fern, 96. 



Plate 1 06 



