148 Plants and their Ways in South Africa 



from the ovaries, which are variously fitted for aerial navigation. 

 Protea ovaries have at the base long tufts of silky hairs 

 which are caught by the wind. The seeds of the Silver Tree 

 appropriate the whole perianth for a sail, which is prettily 

 fringed along the edges. As the fruit enlarges the lower part 

 of the perianth is split open and run up on the style for a 

 mast, where the little knob of a stigma keeps* it from slipping 



Fig. 165. — UrospermuDi. The fruits travel in dry weather. 



off. It must be that many a craft is wrecked, for, besides the 

 trees on Table Mountain and Devil's Peak, few have found 

 anchor. Some have found a haven beneath the shelter of 

 Paarl Rock, and a few have grown on the mountains about 

 Wellington. 



Some species of Leiicodendron have winged fruits. The 

 Australian Hackea and Grevillea of this order have dehiscent 

 fruits. The fruit of Hackea is hard and woody, and contains 

 two seeds with broad membranous wings. The face of. the 



