BRITISH FERNS. 
9 
British Ferns. 
The Royal Flowering Fern (Osmundci regalis ); 
Common Scale Fern (Ceterach officinarum ), fig. 5 ; 
Common Polypody (Polypodium vulgare), fig. 6; 
Holly Fern (Polystichum Lonchitis ); Male Fern 
(.Lastrea filix-mas ); Bladder Fern (Cystopteris fra- 
gilis ); Wall Rue or Wall Spleenwort (Asplenium 
