REFERENCES 
379 
“Flower in the crannied wall, 
I pick you out of your crannies. 
I hold you here, root and all, in my hand, 
Little flower, but if I could understand 
What you are, root and all, and all in all, 
I should know what God and man is.” 
HOME WORK 
To show the response of stems to gravity, place seedlings or young 
plants in unnatural positions and note their effort to right themselves. 
To show the response to light, examine a potato from a dark cellar, which 
has sprouted in the spring; a plant that has been allowed to grow toward 
the light in a window; the bending of seedlings, and the like. For the 
storage of food, examine all the common garden vegetables and test them 
for the food which they contain. If possible, find some vegetables which 
have been kept for two seasons and have produced seed, and note their 
appearance after all the food has been used. 
Sprout slips of balsam, geranium, and ivy to get adventitious roots. 
Show such roots on the stem of a tomato plant where it has been allowed 
to lie on the ground, and on Wandering Jew. 
Examine leaves in the laboratory and in the fields to find illustrations 
of all the terms used. . Examine onions and cabbages for example of 
leaves modified for storage, and the onion also as an example of a re¬ 
duced stem. Find examples of all the terms used in the discussion of 
flowers and buds. Make collections of leaves of shade trees. 
QUESTIONS 
What are the ordinary adaptations of plants? What are the pe¬ 
culiarities of the plants that get their nitrogen from insects? Describe 
Indian pipe; mistletoe. Discuss the movements of plants. What 
are the commonest plant societies ? Mention the localities in which 
each is to be found. Name plants characteristic of each. Describe 
mistletoe and its effect on a tree. What is meant by plant succession? 
What is our economic interest in plants? What scientific interests 
have we? What are some of the facts we are trying to find out? 
REFERENCES 
Bergen and Caldwell, Practical Botany, pages 477-493. 
Bessey, College Botany, page 320. 
Plant Societies. 
