68o Rural School Leaflet. 



Application of the observations.- — These fruits belong to two groups 

 or classes of fruits — the two classes which comprise our common tree 

 fruits. Determine whether the pupil can properly classify these fruits 

 from the observations already made. 



Class I. — Pomaceous fruits, called pomes (members of the genus 

 Pyrus) or seed fruits: 



Apple, 



Pear. 



(Ask the pupils to name the other two common fruits belonging to 

 this class. ) 



Crab apple, 



Quince. 



Class 2. — Drupaceous or stone fruits, called drupes (members of the 

 genus Prunus) : 



Plum, 



Peach. 



(Ask the pupils to name ancjther common fruit bclongmg to this 

 class.) 



Cherry. 

 Drazvings: 



I. Make a drawing of the cross-section of the apple showing 



(a) The skin, 



(b) The flesh, 



(c) The carpels, 



(d) The cells of the core, 



(e) The seeds. 



Answer the following questions : 



1. Wliat fruits have a de])ression at tlic l)lossom end? 



2. What is this depression called ? 



3. Wliat fruits are more or less round at the Ijlossom end? 



4. What is the calyx ^ 



5. How many lobes has it? 



6. What four common fruits have seeds? 



7. What three common fruits have ])its? 



8. How much space does the core take U]) in an ajijile? 



9. W'ould the ajiple be wortli more if ihc core were larger or 

 smaller ? Why ? 



10. How many cells in the core of an a])])le? 



11. What are the carpels? 



12. How do pits and seeds differ in structure? 



13. To how many classes do the common tree fruits belong? 

 Name them. 



