60 PTEEIS CKETICA, VAR. ALBO-LINEATA. 



The colour is green, with, a broad belt of a whitish colour 

 down the centre of each pinna, occupying one half the width 

 of the frond. 



Mr. Crocker, who has the management of the Ferns at the 

 Royal Gardens, Kew, has raised some hundreds of plants 

 from spores, and every one is quite true, not a single normal 

 green frond to be seen amongst them. 



My thanks are due to Mr. Smith, the Curator of the Royal 

 Gardens, Kew, for the fronds from which the present illustration 

 was produced. 



