CONTENTS. 
THE BRITISH FERNS. 
Genus I.—POoLYPODIUM : B a 5 A 
The Common Polypody (Polypodium vulgare) 
The Mountain Polypody, or Beech Fern (Polypodium Phegopteris) 
The Alpine Polypody (Polypodium alpestre) . 
The Smooth Three-branched Polypody, or Oak Fern (Polypodium Dryo- 
pteris) . 5 . ` ` 
The Limestone Polypody (Polypodium Robertianum) 

Genus 11.—ALLOSORUS : ; S A S 
^. 
The Mountain Parsley Fern, or Rock Brakes (Allosorus crispus) 
GENUS 111.—GYMNOGRAMMA : 
The Small-leaved Gymnogram (Gymnogramma leptophylla) 
Genus IV.—PorvsTIOHUM : 
The Alpine Shield Fern, or Holly Fern (Polystichum Lonchitis) 
The Common Prickly Shield Fern (Polystichum aculeatum) 
The Soft Prickly Shield Fern (Polystichum angulare) . 
GENUS V.—LASTREA : 
The Female Buckler Fern, or Marsh Fern (Lastrea Thelypteris) 
The Mountain Buckler Fern (Lastrea montana) 
The Male Fern, or Common Buckler Fern (Lastrea Filix-mas) 
The Rigid Buckler Fern (Lastrea rigida) . 
The Crested Buckler Fern (Lastrea cristata) . 
The Broad Prickly-toothed Buckler Fern (Lastrea dilatata) 
The Hay-scented or Concaye Buckler Fern (Lastrea emula) . 

