90 NATUBE-STUDY LESSONS. 



22. Compare these markings with those found on the 

 twig of the horse-chestnut or maple. 



23. Compare the main stem of the dandelion with that 

 of the anemone patens, the hepatica, the trillium and the 

 onion in respect to shape, color, hardness, and depth to 

 which it grows. 



C. The Leaves. 



24. (a) Describe the earliest leaves of the dandelion 



as to shape and position. 

 (d) Where do they spring from ? 



One of the distinctions between the root and the stem is that the stem 

 does, and the root does not, produce leaves and buds. 



25. What advantages are secured for the dandelion by 

 its stem being underground ? 



26. What is the color of the leaves ? 



27. Where are foliage-leaves found on plants ? Above 

 ground or below ground ? 



28. Observe the leaves of grass or other plants found 

 under boards or stones or in a dark cellar. What is 

 their color .■' 



29. (a) Compare the health and vigor of plants grown 



under such conditions with that of similar 

 plants grown in the sunlight. 

 (^) Infer from this one condition necessary for the 

 healthy development of the plant. 



30. How are leaves fitted by their form to secure 

 proper light exposure? 



31. (a) Observe the leaves of dandelions growing in 



short grass ; also the leaves of those growing 

 in long grass. 

 (&) Describe any differences you note in the length 

 and position of these leaves. 



