THE FRUIT AND SEED-DISPERSAL 



?0i 



fruit-coat (pericarp), with air-spaces. Their lart^c fruits can thus 

 be easily floated away as they drop, by n stream or by tides. But 



Fig. 236. 

 Samara, or winged fruit of Sycamore, dividing into two. (Aitcr Fignicr.) 



extreme cases are seen in Nipa, Cocos, and Lodoicea, all of them littoral 

 and estuarine Palms. Their fruits have fibrous husks with air- 

 chambers, and this serves to float them. Each contains a single 



Fig. 237- 



Fruiting annual plants otSalsola, caught at a wire fence, as they wore rollo.l by 



wind over level sand, on the coast near .Adelaide, .Australia. 



seed. Those of Lodoicea, the Double Coco-Nut of the Seychelles, arc 

 the largest known. They may be carried longTdistances by ocean 



currents. 



