246 STUDY OF FRUITS AND SEEDS. 



which thus serves to float the seed. The fruit of the Alder, 

 which grows by the banks of streams, is frequently borne 

 on the water. 



The lessons given on fruits generally are intended to 



.PETAL 



Fig. 125. Section of Flower of Gooseberry. 

 The berry develops below the calyx-tube. 



stimulate observation out of doors and to lead to question- 

 ings. Whilst the foregoing represent a few of the more 

 noticeable adaptations for dispersal, it will be found that 

 there are cases which do not admit of any special inter- 

 pretation, and the dispersal of the seeds in such cases 

 appears to be left largely to chance. 



A series of studies on fruits should be drawn up to show 

 the relation of the fruit to the parts of the flower. This 

 can readily be done by the botanical student, but care 

 should be exercised in the selection of examples. In some 

 cases it will be found profitable to trace the development 

 experimentally by examining the fruit at different stages. 

 In this connection the study of edible fruits will pro- 

 bably be found most interesting, e.g. Gooseberry, Apple, 

 Strawberry, Pea (Fig. 125). (See also Figs. 116 to 118.) 



