THE STEM. 
67 
By frequent observations made during their 
growth, you will be able to answer the following 
questions in regard to each sort of bud you have 
found. 
QUESTIONS ON THE BUDS OF A PLANT. 
When do the buds begin to swell ? 
How long are they in unfolding ? 
Are they naked, scaly, woolly, or gummy? 
Can you find the growing-point within them ? 
Is there any appearance of leaves within them ? 
What are the size, color, and structure of the bud 
before swelling commences ? 
Plow long is it from the first bursting of the bud 
till the leaves are full grown ? 
What changes of color do the leaves undergo dur¬ 
ing growth ? 
Are the first-formed leaves as large as those formed 
later in the season ? 
What becomes of the bud-scales as the buds ua 
fold? 
In studying the leaves of a plant, you will now 
observe the vernation, and it may be given in your 
leaf-description. 
EXERCISE XVI. 
Arrangement of Leaves on the Stem . 
Alternate Leaves. —Leaves are alternate on the 
stem when there is but one at each node, as in Fig. 96. 
Opposite Leaves.— When two leaves grow oppo¬ 
site each other, we call it the opposite arrangement. 
Fig. 97. 
