5o8 



Handbook of Nature-Study 



The purple irillium. 

 Photo by Verne Morton. 



they are all alike in that they have three sepals, three petals and three 

 leaves. 



Method — This lesson ma}^ be given from trilliums brought to the school- 

 room by the pupils, who should be encouraged to watch the development 

 of the berry and also to learn all the different species common to a 

 locality. 



Observations — i. How many leaves has the trillium? How are they 

 arranged? Draw a leaf showing its shape and veins. Describe the stem 

 of the plant below the leaves, giving the length and color. 



2. How far above the leaves does the flower stem or pedicel extend? 

 Does the flower stand upright or droop? Describe or sketch the colors, 

 shape and arrangement of the petals and sepals. Do the petals have 

 rufHed margins ? 



3. Describe the pistil and the stigmas. Describe the stamens and 

 how they are placed in relation to the pistil. 



4. Do the flowers remain open during cloudy days and nights? 



5. What insects do you find visiting the trilliums? Do the same 

 insects visit the purple and the white trilliums ? What is the difference in 

 odor between the purple and the white trillium? Would this bring 

 different kinds of insects to each? 



6. How does the color of the white trillium change as the blossom 

 matures ? What is the color and shape of the fruit of each different species 

 of trillium? When is the fruit ripe? 



7. What kind of a root have the wake-robins? Do they grow from 

 seed each year, or are they perennial? Where do you find them growing? 



