no 



INTRODUCTION TO PLANT GEOGRAPHY 



[chap. 



Fig. 26. — Water-dispersed fruits and other bodies. A, sectional view of fruit 

 of Coconut (Cocos micifera) showing the thick fibrous outer husk which encloses 

 much air and enables it to float protractedly ( ■: "A); B, germinating seedling of 

 a Mangrove {RhizopJioia) projecting from a fruit that is still attached to the tree 

 (many such seedlings on detachment can float in the sea for weeks on end) (x \)\ 

 C, inflated capsules of C<irdiospeniiiini, the one on the right having been cut through 

 to show the contained seeds (such fruits may be blown about as well as float) 

 ( • f); D, fruit of Heritiera litioralis, adapted for water dispersal b\' its thick 

 fibrous husk enclosing an air-ca\ity (seen in the half-specimen below) ( -V); 

 E, seeds of Macuno gi^autea, adapted for water dispersal b> ha\ing an imper\ious 

 coat and contained air-cavity surrounding the embryo (seen in the half-specimen 

 on right) ( s i); F, fruits of Lotus (Neluinbo iiucijeia), embedded in top of enlarged 

 receptacle (both fruits and receptacle are buoyant) ( .< 2)- 



