WINDOW GARDENING 



The Pierson fern (N. piersoni) is as easily 

 grown as the Boston but has much broader and 

 heavier leaves. The pinnae or leaflets instead 



Fig. 34. The Pierson fern 



of being simple, as in the Boston fern, are again 

 divided. (Fig. 34.) 



Among the newer varieties are the Tarrytown 

 118 



