60 PTERIS f RETKA, VAU. ALBO-I.IXEATA. 



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

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

 of the fi'ond. 



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

 Royal Gardens, Kew, has riiised some hundreds of plants 

 from spores, and every one are 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. 



