176 APPENDIX II 



being given to the class. Formalin solution also preserves 

 them well. 



I. Preserved Cherries are useful when no fresh ones are 

 obtainable, and Prunes may be soaked over night. 



I. 5. Kerner and Oliver, Volume II, Part 2, p. 865 (top). 



IV. Cranberries remain in the market for a considerable 

 time, but it is well to preserve a quantity in formalin 

 solution. 



XIV. The Rose-hip and the Fig may be studied if time 

 and material allow, to show fruits in which the receptacle 

 enclosing the real fruits becomes fleshy, while the Strawberry 

 is a good example of dry fruits (achenes) borne upon the 

 outside of a very fleshy and succulent receptacle. 



CHAPTER XXVIII 



DRY DEHISCENT FRUITS 



General Reading 



Kerner and Oliver, Volume II, Part i, pp. 429-432; Part 2, 



pp. 833-840. 

 L^ibbock, Flowers, Fruits, and Leaves, pp. 53-65. 



I-III. The references given above apply especially to 

 fruits which are noticeably explosive. Perhaps all dehiscent 

 fruits are more or less explosive, but the evidence is not so 

 plain in the majority of cases. In the paragraphs that fol- 

 low, more attention is paid to the method of dehiscence. 



III-VIII. Gray, Text-book, pp. 288-293 ; Lubbock, 

 Flowers, Fruits, and Leaves, p. 65, Fig. 46. 



