LIST OF ILLUSTRATIONS 



PAGE 



Clayton's Fern (a) Frontispiece 



Clayton's Fern (b) 13 



Cinnamon Fern (a) » ... 15 



Cinnamon, Fern (b) „ ... 17 



Royal Fern (a) 19 



Royal Fern (b) «... 21 



Lady^ Fern . . 25 



Silvery Spleenwort 27 



Narrow-Leaved Spleenwort 29 



Ebony Spleenwort 31 



Ebony Spleen vv^ort 33 



Small Spleenwort 35 



Wall Rue 37 



Mountain Spleenwort 39 



Scott's Spleenwort 41 



PiNNATiFiD Spleenwort 43 



Maidenhair Spleenwort (a) 45 



Maidenhair Spleenwort (b) 47 



Green Spleenwort 49 



Bradley's Spleenwort 51 



Sensitive Fern 55 



Sensitive Fern =57 



Ostrich Fern 59 



Brake 61 



Purple Cliff Brake (a) 63 



Purple Cliff Brake (b) 65 



ix 



