SPECIAL EXERCISES ON TYPICAL FLOWERS 203 



Roses, peaches, pears, cherries, and many other very 

 common plants are members of the same order. 



Method. How does the strawberry plant spread? Make 

 a sketch, showing a runner. Draw one leaf and name the 

 following parts: petiole, stipules, blades (leaflets). How 

 many leaflets are there? 



Are the flowers solitary or in clusters? Is the inflores- 

 cence definite (ending in a flower) or indefinite (ending in a 

 bud) ? Examine a flower cluster (cyme) and draw a dia- 

 gram to show the kind of inflorescence. 



This flower seems to have ten sepals, but such is not the 

 case. There is a whorl of five bracts just outside the calyx. 

 How many sepals? Petals? Are they separate or united? 

 How many stamens? Pistils? Remove a petal and draw it. 

 Remove a stamen and a pistil and draw them greatly en- 

 larged. Study the oldest flower in the cluster and see what 

 becomes of the pistils. 



What is the origin of a strawberry? What part of the 

 plant is eaten? What are the little yellow points on the 

 surface of a ripe strawberry which give it its name ? 



Make drawings of a section through a flower, a plan of 

 the flower, and a section of the fruit. 



Suggestion Compare apple blossoms and roses with 

 strawberry blossoms. Wherein are they alike? In what 

 respects do they differ? Compare raspberry flowers and 

 fruit with those of the strawberry in a similar manner. 



175. MUSTARD OR ANY OTHER CRUCIFER 



Mustard is a common weed which is a representative of a 

 very important family of plants. Radish, turnip, horse- 

 radish, cabbage, and many other food plants are related 

 to it. 



