THE LEAVES 



77 



Leavea making a whorl. 



Fi&5l 



Opposite leaflets. 



Compound leaf of 



Questions and Exercises. — 



(1) To what rib-plan do the following leaves belong? Plane, 

 •jasmine, violet, gum tree, silver wattle, golden wattle, geranium, 

 periwinkle, tomato, hollyhock, snapdragon, grape vine, clover, 

 ro.se, castor oil plant, lupin ? 



(2) Explain how and why the leaf of the plane tree is so strongly 

 attached to the stem. 



(3) The dock has a large leaf ; how is the leaf stalk strength- 

 ened? 



(4) When the garden lobelia throws up stalks for flowering, it 

 alters the shape of its leaves. Describe both kinds. 



