appearance. When 

 the tender, delicately 

 green fronds are first 

 unrolled they contrast 



strongly with 

 their polished, 

 dark-green, 

 leathery com- 

 panions. 



In this plant 

 the difference is quite 

 conspicuous between 

 the fertile and the sterile fronds. 

 The sterile ones are shorter and 

 apparently broader, while the fer- 

 tile are tall, slender, and notice- 

 ably contracted by the abundantly 

 fruiting pinnae near the apex. 



Christmas Fr 



