PLATE I 



A. FERN WITH A CREEPING STEM. B. FERN WITH AN ERECT STEM. 



Rh. = Rhizome. Cd. = Caudex. 



P. = Pinna. St. = Stipe. 



C. = Young frond, circinate in bud. R. = Rachis. 



C. = Young frond, circinate 

 in bud. 



To face page 3 



